./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--net--ethernet--intel--igbvf--igbvf.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 70285c15c86f57662e9c7cfb124387828d40f8fb898978032ed6716b7a4d6009 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:58:17,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:58:17,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:58:17,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:58:18,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:58:18,005 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:58:18,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:58:18,013 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:58:18,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:58:18,024 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:58:18,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:58:18,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:58:18,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:58:18,031 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:58:18,034 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:58:18,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:58:18,043 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:58:18,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:58:18,046 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:58:18,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:58:18,058 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:58:18,060 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:58:18,063 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:58:18,064 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:58:18,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:58:18,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:58:18,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:58:18,074 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:58:18,075 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:58:18,076 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:58:18,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:58:18,077 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:58:18,079 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:58:18,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:58:18,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:58:18,082 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:58:18,083 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:58:18,083 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:58:18,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:58:18,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:58:18,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:58:18,086 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 01:58:18,134 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:58:18,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:58:18,138 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:58:18,138 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:58:18,139 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:58:18,139 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:58:18,140 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:58:18,140 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:58:18,140 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:58:18,140 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:58:18,141 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:58:18,142 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:58:18,142 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:58:18,142 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:58:18,142 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:58:18,143 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:58:18,143 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:58:18,143 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:58:18,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:58:18,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:58:18,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:58:18,144 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:58:18,145 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:58:18,145 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:58:18,145 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:58:18,145 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:58:18,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:58:18,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:58:18,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:58:18,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:58:18,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:58:18,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:58:18,149 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:58:18,149 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:58:18,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:58:18,150 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:58:18,150 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:58:18,150 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:58:18,150 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70285c15c86f57662e9c7cfb124387828d40f8fb898978032ed6716b7a4d6009 [2021-11-21 01:58:18,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:58:18,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:58:18,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:58:18,462 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:58:18,462 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:58:18,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i [2021-11-21 01:58:18,546 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/data/17ac7d93c/0cc403d026aa402abdd7869507ca5dbd/FLAGa907ca044 [2021-11-21 01:58:19,728 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:58:19,729 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i [2021-11-21 01:58:19,839 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/data/17ac7d93c/0cc403d026aa402abdd7869507ca5dbd/FLAGa907ca044 [2021-11-21 01:58:19,902 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/data/17ac7d93c/0cc403d026aa402abdd7869507ca5dbd [2021-11-21 01:58:19,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:58:19,907 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:58:19,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:58:19,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:58:19,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:58:19,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:58:19" (1/1) ... [2021-11-21 01:58:19,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@159e8b96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:58:19, skipping insertion in model container [2021-11-21 01:58:19,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:58:19" (1/1) ... [2021-11-21 01:58:19,925 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:58:20,202 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:58:27,642 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[562820,562833] [2021-11-21 01:58:27,646 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[562965,562978] [2021-11-21 01:58:27,653 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[563111,563124] [2021-11-21 01:58:27,654 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[563276,563289] [2021-11-21 01:58:27,657 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[563434,563447] [2021-11-21 01:58:27,658 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[563592,563605] [2021-11-21 01:58:27,665 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[563750,563763] [2021-11-21 01:58:27,665 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[563910,563923] [2021-11-21 01:58:27,666 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[564069,564082] [2021-11-21 01:58:27,666 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[564208,564221] [2021-11-21 01:58:27,667 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[564350,564363] [2021-11-21 01:58:27,667 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[564499,564512] [2021-11-21 01:58:27,668 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[564638,564651] [2021-11-21 01:58:27,669 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[564793,564806] [2021-11-21 01:58:27,669 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[564953,564966] [2021-11-21 01:58:27,669 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[565104,565117] [2021-11-21 01:58:27,670 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[565255,565268] [2021-11-21 01:58:27,671 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[565407,565420] [2021-11-21 01:58:27,673 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[565556,565569] [2021-11-21 01:58:27,674 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[565704,565717] [2021-11-21 01:58:27,675 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[565861,565874] [2021-11-21 01:58:27,676 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[566010,566023] [2021-11-21 01:58:27,676 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[566166,566179] [2021-11-21 01:58:27,678 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[566319,566332] [2021-11-21 01:58:27,678 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[566465,566478] [2021-11-21 01:58:27,679 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[566608,566621] [2021-11-21 01:58:27,679 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[566760,566773] [2021-11-21 01:58:27,681 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[566906,566919] [2021-11-21 01:58:27,686 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[567051,567064] [2021-11-21 01:58:27,688 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[567205,567218] [2021-11-21 01:58:27,690 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[567356,567369] [2021-11-21 01:58:27,690 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[567511,567524] [2021-11-21 01:58:27,691 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[567663,567676] [2021-11-21 01:58:27,691 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[567818,567831] [2021-11-21 01:58:27,699 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[567982,567995] [2021-11-21 01:58:27,699 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[568138,568151] [2021-11-21 01:58:27,700 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[568302,568315] [2021-11-21 01:58:27,700 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[568444,568457] [2021-11-21 01:58:27,701 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[568602,568615] [2021-11-21 01:58:27,701 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[568769,568782] [2021-11-21 01:58:27,702 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[568928,568941] [2021-11-21 01:58:27,702 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[569087,569100] [2021-11-21 01:58:27,703 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[569236,569249] [2021-11-21 01:58:27,703 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[569383,569396] [2021-11-21 01:58:27,705 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[569522,569535] [2021-11-21 01:58:27,706 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[569685,569698] [2021-11-21 01:58:27,706 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[569851,569864] [2021-11-21 01:58:27,707 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[570015,570028] [2021-11-21 01:58:27,709 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[570180,570193] [2021-11-21 01:58:27,709 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[570345,570358] [2021-11-21 01:58:27,710 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[570511,570524] [2021-11-21 01:58:27,710 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[570676,570689] [2021-11-21 01:58:27,711 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[570843,570856] [2021-11-21 01:58:27,711 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[571003,571016] [2021-11-21 01:58:27,712 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[571165,571178] [2021-11-21 01:58:27,713 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[571324,571337] [2021-11-21 01:58:27,713 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[571470,571483] [2021-11-21 01:58:27,714 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[571613,571626] [2021-11-21 01:58:27,714 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[571757,571770] [2021-11-21 01:58:27,715 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[571900,571913] [2021-11-21 01:58:27,715 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[572044,572057] [2021-11-21 01:58:27,716 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[572185,572198] [2021-11-21 01:58:27,717 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[572323,572336] [2021-11-21 01:58:27,717 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[572481,572494] [2021-11-21 01:58:27,718 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[572640,572653] [2021-11-21 01:58:27,718 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[572796,572809] [2021-11-21 01:58:27,718 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[572945,572958] [2021-11-21 01:58:27,719 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[573097,573110] [2021-11-21 01:58:27,719 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[573248,573261] [2021-11-21 01:58:27,720 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[573397,573410] [2021-11-21 01:58:27,720 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[573549,573562] [2021-11-21 01:58:27,721 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[573697,573710] [2021-11-21 01:58:27,722 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[573850,573863] [2021-11-21 01:58:27,722 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[574001,574014] [2021-11-21 01:58:27,722 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[574151,574164] [2021-11-21 01:58:27,723 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[574298,574311] [2021-11-21 01:58:27,723 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[574449,574462] [2021-11-21 01:58:27,724 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[574600,574613] [2021-11-21 01:58:27,724 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[574748,574761] [2021-11-21 01:58:27,725 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[574914,574927] [2021-11-21 01:58:27,725 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[575083,575096] [2021-11-21 01:58:27,726 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[575250,575263] [2021-11-21 01:58:27,726 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[575418,575431] [2021-11-21 01:58:27,727 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[575568,575581] [2021-11-21 01:58:27,728 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[575715,575728] [2021-11-21 01:58:27,729 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[575876,575889] [2021-11-21 01:58:27,729 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[576046,576059] [2021-11-21 01:58:27,730 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[576208,576221] [2021-11-21 01:58:27,763 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:58:27,830 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:58:28,364 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[562820,562833] [2021-11-21 01:58:28,364 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[562965,562978] [2021-11-21 01:58:28,365 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[563111,563124] [2021-11-21 01:58:28,365 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[563276,563289] [2021-11-21 01:58:28,366 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[563434,563447] [2021-11-21 01:58:28,366 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[563592,563605] [2021-11-21 01:58:28,366 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[563750,563763] [2021-11-21 01:58:28,367 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[563910,563923] [2021-11-21 01:58:28,367 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[564069,564082] [2021-11-21 01:58:28,368 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[564208,564221] [2021-11-21 01:58:28,368 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[564350,564363] [2021-11-21 01:58:28,368 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[564499,564512] [2021-11-21 01:58:28,369 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[564638,564651] [2021-11-21 01:58:28,369 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[564793,564806] [2021-11-21 01:58:28,370 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[564953,564966] [2021-11-21 01:58:28,370 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[565104,565117] [2021-11-21 01:58:28,370 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[565255,565268] [2021-11-21 01:58:28,371 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[565407,565420] [2021-11-21 01:58:28,371 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[565556,565569] [2021-11-21 01:58:28,372 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[565704,565717] [2021-11-21 01:58:28,372 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[565861,565874] [2021-11-21 01:58:28,372 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[566010,566023] [2021-11-21 01:58:28,373 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[566166,566179] [2021-11-21 01:58:28,373 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[566319,566332] [2021-11-21 01:58:28,374 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[566465,566478] [2021-11-21 01:58:28,374 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[566608,566621] [2021-11-21 01:58:28,374 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[566760,566773] [2021-11-21 01:58:28,375 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[566906,566919] [2021-11-21 01:58:28,375 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[567051,567064] [2021-11-21 01:58:28,376 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[567205,567218] [2021-11-21 01:58:28,376 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[567356,567369] [2021-11-21 01:58:28,376 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[567511,567524] [2021-11-21 01:58:28,377 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[567663,567676] [2021-11-21 01:58:28,377 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[567818,567831] [2021-11-21 01:58:28,378 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[567982,567995] [2021-11-21 01:58:28,378 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[568138,568151] [2021-11-21 01:58:28,378 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[568302,568315] [2021-11-21 01:58:28,379 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[568444,568457] [2021-11-21 01:58:28,379 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[568602,568615] [2021-11-21 01:58:28,380 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[568769,568782] [2021-11-21 01:58:28,380 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[568928,568941] [2021-11-21 01:58:28,380 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[569087,569100] [2021-11-21 01:58:28,381 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[569236,569249] [2021-11-21 01:58:28,381 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[569383,569396] [2021-11-21 01:58:28,382 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[569522,569535] [2021-11-21 01:58:28,382 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[569685,569698] [2021-11-21 01:58:28,382 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[569851,569864] [2021-11-21 01:58:28,383 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[570015,570028] [2021-11-21 01:58:28,383 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[570180,570193] [2021-11-21 01:58:28,384 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[570345,570358] [2021-11-21 01:58:28,384 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[570511,570524] [2021-11-21 01:58:28,384 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[570676,570689] [2021-11-21 01:58:28,385 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[570843,570856] [2021-11-21 01:58:28,385 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[571003,571016] [2021-11-21 01:58:28,386 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[571165,571178] [2021-11-21 01:58:28,386 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[571324,571337] [2021-11-21 01:58:28,387 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[571470,571483] [2021-11-21 01:58:28,387 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[571613,571626] [2021-11-21 01:58:28,387 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[571757,571770] [2021-11-21 01:58:28,388 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[571900,571913] [2021-11-21 01:58:28,388 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[572044,572057] [2021-11-21 01:58:28,389 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[572185,572198] [2021-11-21 01:58:28,389 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[572323,572336] [2021-11-21 01:58:28,389 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[572481,572494] [2021-11-21 01:58:28,390 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[572640,572653] [2021-11-21 01:58:28,390 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[572796,572809] [2021-11-21 01:58:28,391 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[572945,572958] [2021-11-21 01:58:28,391 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[573097,573110] [2021-11-21 01:58:28,392 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[573248,573261] [2021-11-21 01:58:28,392 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[573397,573410] [2021-11-21 01:58:28,392 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[573549,573562] [2021-11-21 01:58:28,393 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[573697,573710] [2021-11-21 01:58:28,393 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[573850,573863] [2021-11-21 01:58:28,393 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[574001,574014] [2021-11-21 01:58:28,394 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[574151,574164] [2021-11-21 01:58:28,394 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[574298,574311] [2021-11-21 01:58:28,395 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[574449,574462] [2021-11-21 01:58:28,395 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[574600,574613] [2021-11-21 01:58:28,395 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[574748,574761] [2021-11-21 01:58:28,396 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[574914,574927] [2021-11-21 01:58:28,396 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[575083,575096] [2021-11-21 01:58:28,397 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[575250,575263] [2021-11-21 01:58:28,397 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[575418,575431] [2021-11-21 01:58:28,397 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[575568,575581] [2021-11-21 01:58:28,398 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[575715,575728] [2021-11-21 01:58:28,398 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_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[575876,575889] [2021-11-21 01:58:28,399 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[576046,576059] [2021-11-21 01:58:28,399 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i[576208,576221] [2021-11-21 01:58:28,404 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:58:28,978 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:58:28,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:58:28 WrapperNode [2021-11-21 01:58:28,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:58:28,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:58:28,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:58:28,980 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:58:28,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:58:28" (1/1) ... [2021-11-21 01:58:29,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:58:28" (1/1) ... [2021-11-21 01:58:29,516 INFO L137 Inliner]: procedures = 842, calls = 3781, calls flagged for inlining = 410, calls inlined = 310, statements flattened = 8758 [2021-11-21 01:58:29,517 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:58:29,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:58:29,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:58:29,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:58:29,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:58:28" (1/1) ... [2021-11-21 01:58:29,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:58:28" (1/1) ... [2021-11-21 01:58:29,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:58:28" (1/1) ... [2021-11-21 01:58:29,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:58:28" (1/1) ... [2021-11-21 01:58:29,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:58:28" (1/1) ... [2021-11-21 01:58:29,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:58:28" (1/1) ... [2021-11-21 01:58:29,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:58:28" (1/1) ... [2021-11-21 01:58:29,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:58:29,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:58:29,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:58:29,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:58:29,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:58:28" (1/1) ... [2021-11-21 01:58:29,955 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:58:29,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:58:29,979 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:58:30,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:58:30,033 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-11-21 01:58:30,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-11-21 01:58:30,033 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-21 01:58:30,033 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-21 01:58:30,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-21 01:58:30,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-21 01:58:30,034 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-21 01:58:30,034 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-21 01:58:30,034 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-21 01:58:30,034 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-21 01:58:30,034 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-21 01:58:30,034 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-21 01:58:30,035 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_maybe_stop_tx [2021-11-21 01:58:30,035 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_maybe_stop_tx [2021-11-21 01:58:30,035 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-21 01:58:30,035 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-21 01:58:30,035 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-21 01:58:30,035 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-21 01:58:30,035 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_suspend [2021-11-21 01:58:30,036 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_suspend [2021-11-21 01:58:30,036 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-21 01:58:30,036 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-21 01:58:30,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-21 01:58:30,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-21 01:58:30,036 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_assign_vector [2021-11-21 01:58:30,036 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_assign_vector [2021-11-21 01:58:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-21 01:58:30,037 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-21 01:58:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_desc_unused [2021-11-21 01:58:30,037 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_desc_unused [2021-11-21 01:58:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-21 01:58:30,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-21 01:58:30,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-21 01:58:30,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-21 01:58:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:58:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-21 01:58:30,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-21 01:58:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_netpoll [2021-11-21 01:58:30,038 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_netpoll [2021-11-21 01:58:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2021-11-21 01:58:30,039 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2021-11-21 01:58:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_reset_interrupt_capability [2021-11-21 01:58:30,039 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_reset_interrupt_capability [2021-11-21 01:58:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_msg_vf [2021-11-21 01:58:30,039 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_msg_vf [2021-11-21 01:58:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-21 01:58:30,039 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-21 01:58:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2021-11-21 01:58:30,040 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2021-11-21 01:58:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-21 01:58:30,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-21 01:58:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-21 01:58:30,041 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-21 01:58:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-21 01:58:30,041 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-21 01:58:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-21 01:58:30,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-21 01:58:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:58:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-21 01:58:30,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2021-11-21 01:58:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-21 01:58:30,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-21 01:58:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_configure_msix [2021-11-21 01:58:30,042 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_configure_msix [2021-11-21 01:58:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:58:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_open [2021-11-21 01:58:30,046 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_open [2021-11-21 01:58:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-21 01:58:30,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-21 01:58:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:58:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-21 01:58:30,047 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-21 01:58:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_nway_reset [2021-11-21 01:58:30,047 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_nway_reset [2021-11-21 01:58:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_posted_mbx [2021-11-21 01:58:30,054 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_posted_mbx [2021-11-21 01:58:30,054 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-21 01:58:30,054 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-21 01:58:30,054 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_irq_enable [2021-11-21 01:58:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_irq_enable [2021-11-21 01:58:30,055 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-21 01:58:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-21 01:58:30,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-21 01:58:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-21 01:58:30,055 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_update_stats [2021-11-21 01:58:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_update_stats [2021-11-21 01:58:30,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2021-11-21 01:58:30,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2021-11-21 01:58:30,057 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-21 01:58:30,057 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-21 01:58:30,057 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_bit_vf [2021-11-21 01:58:30,057 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_bit_vf [2021-11-21 01:58:30,057 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_hw_vf [2021-11-21 01:58:30,058 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_hw_vf [2021-11-21 01:58:30,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:58:30,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:58:30,058 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_ack [2021-11-21 01:58:30,058 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_ack [2021-11-21 01:58:30,058 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-21 01:58:30,058 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-21 01:58:30,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 01:58:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-21 01:58:30,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-21 01:58:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set_vf [2021-11-21 01:58:30,059 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set_vf [2021-11-21 01:58:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-21 01:58:30,059 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-21 01:58:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_down [2021-11-21 01:58:30,060 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_down [2021-11-21 01:58:30,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-21 01:58:30,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-21 01:58:30,060 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_free_irq [2021-11-21 01:58:30,060 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_free_irq [2021-11-21 01:58:30,060 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-21 01:58:30,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-21 01:58:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-21 01:58:30,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-21 01:58:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link_vf [2021-11-21 01:58:30,061 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link_vf [2021-11-21 01:58:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:58:30,062 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:58:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_io_mem_unmap [2021-11-21 01:58:30,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_io_mem_unmap [2021-11-21 01:58:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_v2p_mailbox [2021-11-21 01:58:30,063 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_v2p_mailbox [2021-11-21 01:58:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-21 01:58:30,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-21 01:58:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-21 01:58:30,063 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-21 01:58:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-21 01:58:30,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-21 01:58:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-21 01:58:30,064 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-21 01:58:30,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:58:30,064 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-21 01:58:30,064 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-21 01:58:30,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-21 01:58:30,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-21 01:58:30,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:58:30,065 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_setup_rx_resources [2021-11-21 01:58:30,065 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_setup_rx_resources [2021-11-21 01:58:30,065 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-21 01:58:30,065 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-21 01:58:30,065 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-21 01:58:30,066 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-21 01:58:30,066 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-21 01:58:30,066 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-21 01:58:30,066 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-21 01:58:30,066 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-21 01:58:30,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-21 01:58:30,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-21 01:58:30,066 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_msg [2021-11-21 01:58:30,067 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_msg [2021-11-21 01:58:30,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-21 01:58:30,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-21 01:58:30,067 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-21 01:58:30,067 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-21 01:58:30,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-21 01:58:30,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-21 01:58:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2021-11-21 01:58:30,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2021-11-21 01:58:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-21 01:58:30,068 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-21 01:58:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_shutdown [2021-11-21 01:58:30,068 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_shutdown [2021-11-21 01:58:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-21 01:58:30,069 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-21 01:58:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_get_eeprom_len [2021-11-21 01:58:30,069 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_get_eeprom_len [2021-11-21 01:58:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:58:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~X~~bool~0~TO~~s32~0 [2021-11-21 01:58:30,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~X~~bool~0~TO~~s32~0 [2021-11-21 01:58:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 01:58:30,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 01:58:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_io_resume [2021-11-21 01:58:30,070 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_io_resume [2021-11-21 01:58:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_tx_timeout [2021-11-21 01:58:30,070 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_tx_timeout [2021-11-21 01:58:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-21 01:58:30,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-21 01:58:30,071 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-21 01:58:30,071 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-21 01:58:30,071 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_up [2021-11-21 01:58:30,071 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_up [2021-11-21 01:58:30,071 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-11-21 01:58:30,071 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-11-21 01:58:30,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-21 01:58:30,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-21 01:58:30,072 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-21 01:58:30,072 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-21 01:58:30,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-21 01:58:30,072 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-21 01:58:30,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 01:58:30,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 01:58:30,074 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_function_pointers_vf [2021-11-21 01:58:30,075 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_function_pointers_vf [2021-11-21 01:58:30,075 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-21 01:58:30,078 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-21 01:58:30,079 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-21 01:58:30,079 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-21 01:58:30,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-21 01:58:30,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-21 01:58:30,080 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_alloc_rx_buffers [2021-11-21 01:58:30,081 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_alloc_rx_buffers [2021-11-21 01:58:30,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-21 01:58:30,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-21 01:58:30,081 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_mac_addr_vf [2021-11-21 01:58:30,081 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_mac_addr_vf [2021-11-21 01:58:30,081 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_close [2021-11-21 01:58:30,081 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_close [2021-11-21 01:58:30,082 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-21 01:58:30,082 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-21 01:58:30,082 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw_vf [2021-11-21 01:58:30,082 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw_vf [2021-11-21 01:58:30,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-21 01:58:30,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-21 01:58:30,082 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-21 01:58:30,083 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-21 01:58:30,083 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_clean_tx_irq [2021-11-21 01:58:30,083 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_clean_tx_irq [2021-11-21 01:58:30,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-21 01:58:30,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-21 01:58:30,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-21 01:58:30,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-21 01:58:30,083 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-21 01:58:30,084 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-21 01:58:30,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:58:30,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-21 01:58:30,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-21 01:58:30,084 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-21 01:58:30,084 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-21 01:58:30,084 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-21 01:58:30,085 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-21 01:58:30,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 01:58:30,085 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-21 01:58:30,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-21 01:58:30,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 01:58:30,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-21 01:58:30,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-21 01:58:30,085 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-21 01:58:30,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-21 01:58:30,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-21 01:58:30,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-21 01:58:30,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 01:58:30,086 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 01:58:30,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-21 01:58:30,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-21 01:58:30,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-21 01:58:30,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-21 01:58:30,087 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_free_tx_resources [2021-11-21 01:58:30,087 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_free_tx_resources [2021-11-21 01:58:30,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-21 01:58:30,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-21 01:58:30,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_1 [2021-11-21 01:58:30,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_1 [2021-11-21 01:58:30,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_2 [2021-11-21 01:58:30,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_2 [2021-11-21 01:58:30,088 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-21 01:58:30,088 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-21 01:58:30,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-21 01:58:30,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-21 01:58:30,088 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2021-11-21 01:58:30,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2021-11-21 01:58:30,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interrupt_interrupt_instance_0 [2021-11-21 01:58:30,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interrupt_interrupt_instance_0 [2021-11-21 01:58:30,089 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-21 01:58:30,089 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-21 01:58:30,089 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-21 01:58:30,089 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-21 01:58:30,089 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 01:58:30,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 01:58:30,090 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_reset [2021-11-21 01:58:30,090 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_reset [2021-11-21 01:58:30,090 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-21 01:58:30,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-21 01:58:30,090 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-21 01:58:30,090 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-21 01:58:30,091 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_reinit_locked [2021-11-21 01:58:30,091 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_reinit_locked [2021-11-21 01:58:30,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-21 01:58:30,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-21 01:58:30,091 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_vlan_rx_add_vid [2021-11-21 01:58:30,091 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_vlan_rx_add_vid [2021-11-21 01:58:30,091 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-21 01:58:30,091 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-21 01:58:30,092 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-21 01:58:30,092 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-21 01:58:30,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 01:58:30,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 01:58:30,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 01:58:30,092 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-21 01:58:30,092 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-21 01:58:30,092 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-21 01:58:30,093 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-21 01:58:30,093 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_get_regs_len [2021-11-21 01:58:30,093 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_get_regs_len [2021-11-21 01:58:30,093 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-21 01:58:30,093 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-21 01:58:30,093 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-21 01:58:30,093 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-21 01:58:30,094 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-21 01:58:30,094 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-21 01:58:30,094 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_clean_tx_ring [2021-11-21 01:58:30,094 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_clean_tx_ring [2021-11-21 01:58:30,094 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-21 01:58:30,094 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-21 01:58:30,094 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_remove [2021-11-21 01:58:30,094 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_remove [2021-11-21 01:58:30,095 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-21 01:58:30,095 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-21 01:58:30,095 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-21 01:58:30,095 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-21 01:58:30,095 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_irq_disable [2021-11-21 01:58:30,095 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_irq_disable [2021-11-21 01:58:30,095 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_configure [2021-11-21 01:58:30,096 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_configure [2021-11-21 01:58:30,096 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_clean_rx_ring [2021-11-21 01:58:30,096 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_clean_rx_ring [2021-11-21 01:58:30,096 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-21 01:58:30,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~s32~0 [2021-11-21 01:58:30,096 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_obtain_mbx_lock_vf [2021-11-21 01:58:30,096 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_obtain_mbx_lock_vf [2021-11-21 01:58:30,096 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2021-11-21 01:58:30,097 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2021-11-21 01:58:30,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 01:58:30,097 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_ack_vf [2021-11-21 01:58:30,097 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_ack_vf [2021-11-21 01:58:30,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-21 01:58:30,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-21 01:58:30,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-21 01:58:30,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-21 01:58:30,098 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_request_irq [2021-11-21 01:58:30,098 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_request_irq [2021-11-21 01:58:30,098 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_resume [2021-11-21 01:58:30,098 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_resume [2021-11-21 01:58:30,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-21 01:58:30,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-21 01:58:30,098 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_put_txbuf [2021-11-21 01:58:30,099 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_put_txbuf [2021-11-21 01:58:30,099 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2021-11-21 01:58:30,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2021-11-21 01:58:30,099 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-21 01:58:30,099 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-21 01:58:30,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-21 01:58:30,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-21 01:58:30,100 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-21 01:58:30,100 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-21 01:58:30,100 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_setup_tx_resources [2021-11-21 01:58:30,100 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_setup_tx_resources [2021-11-21 01:58:30,100 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-21 01:58:30,100 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-21 01:58:30,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-21 01:58:30,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-21 01:58:30,101 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-21 01:58:30,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-21 01:58:30,101 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2021-11-21 01:58:30,101 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2021-11-21 01:58:30,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-21 01:58:30,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-21 01:58:30,101 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-21 01:58:30,102 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-21 01:58:30,102 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-21 01:58:30,102 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-21 01:58:30,102 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-11-21 01:58:30,102 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-11-21 01:58:30,102 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_free_rx_resources [2021-11-21 01:58:30,102 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_free_rx_resources [2021-11-21 01:58:30,102 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_set_multi [2021-11-21 01:58:30,103 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_set_multi [2021-11-21 01:58:30,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-21 01:58:30,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-21 01:58:30,103 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-21 01:58:30,103 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-21 01:58:30,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-21 01:58:30,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-21 01:58:30,104 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_posted_mbx [2021-11-21 01:58:30,104 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_posted_mbx [2021-11-21 01:58:30,104 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-21 01:58:30,104 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-21 01:58:30,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:58:30,104 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-21 01:58:31,362 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:58:31,368 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:58:31,468 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 01:58:37,664 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:58:39,302 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:58:39,303 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-21 01:58:39,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:58:39 BoogieIcfgContainer [2021-11-21 01:58:39,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:58:39,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:58:39,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:58:39,315 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:58:39,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:58:19" (1/3) ... [2021-11-21 01:58:39,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a4cd2fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:58:39, skipping insertion in model container [2021-11-21 01:58:39,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:58:28" (2/3) ... [2021-11-21 01:58:39,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a4cd2fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:58:39, skipping insertion in model container [2021-11-21 01:58:39,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:58:39" (3/3) ... [2021-11-21 01:58:39,318 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--ethernet--intel--igbvf--igbvf.ko.cil.i [2021-11-21 01:58:39,324 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:58:39,324 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2021-11-21 01:58:39,385 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:58:39,391 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:58:39,391 INFO L340 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2021-11-21 01:58:39,519 INFO L276 IsEmpty]: Start isEmpty. Operand has 2315 states, 1338 states have (on average 1.2727952167414052) internal successors, (1703), 1424 states have internal predecessors, (1703), 766 states have call successors, (766), 182 states have call predecessors, (766), 181 states have return successors, (760), 743 states have call predecessors, (760), 760 states have call successors, (760) [2021-11-21 01:58:39,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-21 01:58:39,527 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:58:39,528 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:58:39,528 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_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 01:58:39,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:58:39,534 INFO L85 PathProgramCache]: Analyzing trace with hash 994107012, now seen corresponding path program 1 times [2021-11-21 01:58:39,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:58:39,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145942107] [2021-11-21 01:58:39,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:58:39,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:58:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:58:40,234 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:58:40,235 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:58:40,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145942107] [2021-11-21 01:58:40,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145942107] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:58:40,236 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:58:40,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:58:40,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806426785] [2021-11-21 01:58:40,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:58:40,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:58:40,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:58:40,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:58:40,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:58:40,294 INFO L87 Difference]: Start difference. First operand has 2315 states, 1338 states have (on average 1.2727952167414052) internal successors, (1703), 1424 states have internal predecessors, (1703), 766 states have call successors, (766), 182 states have call predecessors, (766), 181 states have return successors, (760), 743 states have call predecessors, (760), 760 states have call successors, (760) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-21 01:58:42,621 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:58:49,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:58:49,467 INFO L93 Difference]: Finished difference Result 6173 states and 8670 transitions. [2021-11-21 01:58:49,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:58:49,470 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 47 [2021-11-21 01:58:49,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:58:49,545 INFO L225 Difference]: With dead ends: 6173 [2021-11-21 01:58:49,545 INFO L226 Difference]: Without dead ends: 3856 [2021-11-21 01:58:49,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:58:49,574 INFO L933 BasicCegarLoop]: 3889 mSDtfsCounter, 2074 mSDsluCounter, 7582 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2076 SdHoareTripleChecker+Valid, 10552 SdHoareTripleChecker+Invalid, 1463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:58:49,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2076 Valid, 10552 Invalid, 1463 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1461 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2021-11-21 01:58:49,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3856 states. [2021-11-21 01:58:49,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3856 to 3680. [2021-11-21 01:58:49,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3680 states, 2127 states have (on average 1.2360131640808651) internal successors, (2629), 2236 states have internal predecessors, (2629), 1208 states have call successors, (1208), 318 states have call predecessors, (1208), 316 states have return successors, (1206), 1182 states have call predecessors, (1206), 1206 states have call successors, (1206) [2021-11-21 01:58:49,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 5043 transitions. [2021-11-21 01:58:49,941 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 5043 transitions. Word has length 47 [2021-11-21 01:58:49,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:58:49,942 INFO L470 AbstractCegarLoop]: Abstraction has 3680 states and 5043 transitions. [2021-11-21 01:58:49,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-21 01:58:49,942 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 5043 transitions. [2021-11-21 01:58:49,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-21 01:58:49,947 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:58:49,947 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:58:49,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:58:49,948 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_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 01:58:49,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:58:49,952 INFO L85 PathProgramCache]: Analyzing trace with hash -2026220621, now seen corresponding path program 1 times [2021-11-21 01:58:49,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:58:49,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863916217] [2021-11-21 01:58:49,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:58:49,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:58:50,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:58:50,298 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:58:50,298 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:58:50,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863916217] [2021-11-21 01:58:50,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863916217] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:58:50,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:58:50,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:58:50,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733175958] [2021-11-21 01:58:50,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:58:50,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:58:50,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:58:50,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:58:50,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:58:50,302 INFO L87 Difference]: Start difference. First operand 3680 states and 5043 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-21 01:58:52,488 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:58:54,610 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:59:00,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:59:00,867 INFO L93 Difference]: Finished difference Result 5258 states and 7120 transitions. [2021-11-21 01:59:00,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:59:00,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 52 [2021-11-21 01:59:00,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:59:00,916 INFO L225 Difference]: With dead ends: 5258 [2021-11-21 01:59:00,917 INFO L226 Difference]: Without dead ends: 5256 [2021-11-21 01:59:00,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:59:00,925 INFO L933 BasicCegarLoop]: 3898 mSDtfsCounter, 2082 mSDsluCounter, 7576 mSDsCounter, 0 mSdLazyCounter, 1460 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2084 SdHoareTripleChecker+Valid, 10551 SdHoareTripleChecker+Invalid, 1462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:59:00,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2084 Valid, 10551 Invalid, 1462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1460 Invalid, 1 Unknown, 0 Unchecked, 10.2s Time] [2021-11-21 01:59:00,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5256 states. [2021-11-21 01:59:01,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5256 to 5091. [2021-11-21 01:59:01,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5091 states, 2940 states have (on average 1.2306122448979593) internal successors, (3618), 3075 states have internal predecessors, (3618), 1665 states have call successors, (1665), 459 states have call predecessors, (1665), 457 states have return successors, (1663), 1634 states have call predecessors, (1663), 1663 states have call successors, (1663) [2021-11-21 01:59:01,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5091 states to 5091 states and 6946 transitions. [2021-11-21 01:59:01,255 INFO L78 Accepts]: Start accepts. Automaton has 5091 states and 6946 transitions. Word has length 52 [2021-11-21 01:59:01,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:59:01,256 INFO L470 AbstractCegarLoop]: Abstraction has 5091 states and 6946 transitions. [2021-11-21 01:59:01,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-21 01:59:01,257 INFO L276 IsEmpty]: Start isEmpty. Operand 5091 states and 6946 transitions. [2021-11-21 01:59:01,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-21 01:59:01,270 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:59:01,270 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:59:01,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:59:01,271 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_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 01:59:01,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:59:01,272 INFO L85 PathProgramCache]: Analyzing trace with hash -191511035, now seen corresponding path program 1 times [2021-11-21 01:59:01,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:59:01,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119622875] [2021-11-21 01:59:01,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:59:01,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:59:01,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:59:01,598 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:59:01,598 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:59:01,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119622875] [2021-11-21 01:59:01,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119622875] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:59:01,599 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:59:01,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:59:01,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634139059] [2021-11-21 01:59:01,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:59:01,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:59:01,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:59:01,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:59:01,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:59:01,601 INFO L87 Difference]: Start difference. First operand 5091 states and 6946 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-21 01:59:04,418 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:59:06,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:59:06,941 INFO L93 Difference]: Finished difference Result 5091 states and 6946 transitions. [2021-11-21 01:59:06,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:59:06,942 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 57 [2021-11-21 01:59:06,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:59:06,985 INFO L225 Difference]: With dead ends: 5091 [2021-11-21 01:59:06,985 INFO L226 Difference]: Without dead ends: 5089 [2021-11-21 01:59:06,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:59:06,994 INFO L933 BasicCegarLoop]: 2779 mSDtfsCounter, 3154 mSDsluCounter, 3173 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3156 SdHoareTripleChecker+Valid, 5558 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:59:06,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3156 Valid, 5558 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2021-11-21 01:59:07,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5089 states. [2021-11-21 01:59:07,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5089 to 5089. [2021-11-21 01:59:07,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5089 states, 2939 states have (on average 1.2303504593399115) internal successors, (3616), 3073 states have internal predecessors, (3616), 1665 states have call successors, (1665), 459 states have call predecessors, (1665), 457 states have return successors, (1663), 1634 states have call predecessors, (1663), 1663 states have call successors, (1663) [2021-11-21 01:59:07,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5089 states to 5089 states and 6944 transitions. [2021-11-21 01:59:07,453 INFO L78 Accepts]: Start accepts. Automaton has 5089 states and 6944 transitions. Word has length 57 [2021-11-21 01:59:07,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:59:07,456 INFO L470 AbstractCegarLoop]: Abstraction has 5089 states and 6944 transitions. [2021-11-21 01:59:07,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-21 01:59:07,457 INFO L276 IsEmpty]: Start isEmpty. Operand 5089 states and 6944 transitions. [2021-11-21 01:59:07,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-21 01:59:07,460 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:59:07,460 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:59:07,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 01:59:07,461 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_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 01:59:07,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:59:07,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1872719517, now seen corresponding path program 1 times [2021-11-21 01:59:07,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:59:07,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340173625] [2021-11-21 01:59:07,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:59:07,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:59:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:59:07,765 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:59:07,765 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:59:07,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340173625] [2021-11-21 01:59:07,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340173625] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:59:07,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:59:07,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:59:07,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407973544] [2021-11-21 01:59:07,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:59:07,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:59:07,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:59:07,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:59:07,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:59:07,768 INFO L87 Difference]: Start difference. First operand 5089 states and 6944 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-21 01:59:10,108 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:59:13,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:59:13,104 INFO L93 Difference]: Finished difference Result 5089 states and 6944 transitions. [2021-11-21 01:59:13,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:59:13,105 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 62 [2021-11-21 01:59:13,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:59:13,148 INFO L225 Difference]: With dead ends: 5089 [2021-11-21 01:59:13,148 INFO L226 Difference]: Without dead ends: 5087 [2021-11-21 01:59:13,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:59:13,154 INFO L933 BasicCegarLoop]: 2777 mSDtfsCounter, 3151 mSDsluCounter, 3171 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3153 SdHoareTripleChecker+Valid, 5554 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:59:13,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3153 Valid, 5554 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2021-11-21 01:59:13,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5087 states. [2021-11-21 01:59:13,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5087 to 5087. [2021-11-21 01:59:13,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5087 states, 2938 states have (on average 1.2300884955752212) internal successors, (3614), 3071 states have internal predecessors, (3614), 1665 states have call successors, (1665), 459 states have call predecessors, (1665), 457 states have return successors, (1663), 1634 states have call predecessors, (1663), 1663 states have call successors, (1663) [2021-11-21 01:59:13,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5087 states to 5087 states and 6942 transitions. [2021-11-21 01:59:13,454 INFO L78 Accepts]: Start accepts. Automaton has 5087 states and 6942 transitions. Word has length 62 [2021-11-21 01:59:13,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:59:13,455 INFO L470 AbstractCegarLoop]: Abstraction has 5087 states and 6942 transitions. [2021-11-21 01:59:13,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-21 01:59:13,455 INFO L276 IsEmpty]: Start isEmpty. Operand 5087 states and 6942 transitions. [2021-11-21 01:59:13,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-21 01:59:13,458 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:59:13,459 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:59:13,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 01:59:13,460 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_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 01:59:13,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:59:13,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1577119596, now seen corresponding path program 1 times [2021-11-21 01:59:13,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:59:13,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072850065] [2021-11-21 01:59:13,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:59:13,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:59:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:59:13,746 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:59:13,747 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:59:13,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072850065] [2021-11-21 01:59:13,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072850065] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:59:13,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:59:13,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:59:13,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702159095] [2021-11-21 01:59:13,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:59:13,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:59:13,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:59:13,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:59:13,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:59:13,751 INFO L87 Difference]: Start difference. First operand 5087 states and 6942 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-21 01:59:15,362 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:59:17,395 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:59:20,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:59:20,679 INFO L93 Difference]: Finished difference Result 5087 states and 6942 transitions. [2021-11-21 01:59:20,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:59:20,680 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 67 [2021-11-21 01:59:20,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:59:20,724 INFO L225 Difference]: With dead ends: 5087 [2021-11-21 01:59:20,725 INFO L226 Difference]: Without dead ends: 5085 [2021-11-21 01:59:20,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:59:20,731 INFO L933 BasicCegarLoop]: 2775 mSDtfsCounter, 3148 mSDsluCounter, 3169 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3150 SdHoareTripleChecker+Valid, 5550 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:59:20,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3150 Valid, 5550 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 790 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2021-11-21 01:59:20,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5085 states. [2021-11-21 01:59:21,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5085 to 5085. [2021-11-21 01:59:21,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5085 states, 2937 states have (on average 1.229826353421859) internal successors, (3612), 3069 states have internal predecessors, (3612), 1665 states have call successors, (1665), 459 states have call predecessors, (1665), 457 states have return successors, (1663), 1634 states have call predecessors, (1663), 1663 states have call successors, (1663) [2021-11-21 01:59:21,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5085 states to 5085 states and 6940 transitions. [2021-11-21 01:59:21,101 INFO L78 Accepts]: Start accepts. Automaton has 5085 states and 6940 transitions. Word has length 67 [2021-11-21 01:59:21,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:59:21,101 INFO L470 AbstractCegarLoop]: Abstraction has 5085 states and 6940 transitions. [2021-11-21 01:59:21,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-21 01:59:21,102 INFO L276 IsEmpty]: Start isEmpty. Operand 5085 states and 6940 transitions. [2021-11-21 01:59:21,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-21 01:59:21,104 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:59:21,104 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:59:21,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 01:59:21,105 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_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 01:59:21,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:59:21,106 INFO L85 PathProgramCache]: Analyzing trace with hash 303891864, now seen corresponding path program 1 times [2021-11-21 01:59:21,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:59:21,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446585700] [2021-11-21 01:59:21,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:59:21,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:59:21,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:59:21,414 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:59:21,414 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:59:21,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446585700] [2021-11-21 01:59:21,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446585700] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:59:21,415 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:59:21,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:59:21,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632300948] [2021-11-21 01:59:21,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:59:21,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:59:21,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:59:21,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:59:21,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:59:21,417 INFO L87 Difference]: Start difference. First operand 5085 states and 6940 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-21 01:59:26,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:59:26,667 INFO L93 Difference]: Finished difference Result 5085 states and 6940 transitions. [2021-11-21 01:59:26,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:59:26,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2021-11-21 01:59:26,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:59:26,703 INFO L225 Difference]: With dead ends: 5085 [2021-11-21 01:59:26,703 INFO L226 Difference]: Without dead ends: 5083 [2021-11-21 01:59:26,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:59:26,709 INFO L933 BasicCegarLoop]: 2773 mSDtfsCounter, 3145 mSDsluCounter, 3167 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3147 SdHoareTripleChecker+Valid, 5546 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:59:26,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3147 Valid, 5546 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2021-11-21 01:59:26,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5083 states. [2021-11-21 01:59:27,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5083 to 5083. [2021-11-21 01:59:27,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5083 states, 2936 states have (on average 1.2295640326975477) internal successors, (3610), 3067 states have internal predecessors, (3610), 1665 states have call successors, (1665), 459 states have call predecessors, (1665), 457 states have return successors, (1663), 1634 states have call predecessors, (1663), 1663 states have call successors, (1663) [2021-11-21 01:59:27,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5083 states to 5083 states and 6938 transitions. [2021-11-21 01:59:27,057 INFO L78 Accepts]: Start accepts. Automaton has 5083 states and 6938 transitions. Word has length 72 [2021-11-21 01:59:27,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:59:27,059 INFO L470 AbstractCegarLoop]: Abstraction has 5083 states and 6938 transitions. [2021-11-21 01:59:27,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-21 01:59:27,060 INFO L276 IsEmpty]: Start isEmpty. Operand 5083 states and 6938 transitions. [2021-11-21 01:59:27,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-21 01:59:27,061 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:59:27,062 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] [2021-11-21 01:59:27,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 01:59:27,062 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 01:59:27,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:59:27,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1061305526, now seen corresponding path program 1 times [2021-11-21 01:59:27,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:59:27,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048388527] [2021-11-21 01:59:27,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:59:27,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:59:27,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:59:27,289 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-21 01:59:27,289 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:59:27,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048388527] [2021-11-21 01:59:27,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048388527] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:59:27,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:59:27,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:59:27,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449330003] [2021-11-21 01:59:27,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:59:27,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:59:27,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:59:27,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:59:27,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:59:27,292 INFO L87 Difference]: Start difference. First operand 5083 states and 6938 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-21 01:59:29,137 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:59:30,376 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:59:32,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:59:32,574 INFO L93 Difference]: Finished difference Result 11282 states and 15335 transitions. [2021-11-21 01:59:32,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:59:32,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 89 [2021-11-21 01:59:32,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:59:32,610 INFO L225 Difference]: With dead ends: 11282 [2021-11-21 01:59:32,610 INFO L226 Difference]: Without dead ends: 6217 [2021-11-21 01:59:32,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:59:32,638 INFO L933 BasicCegarLoop]: 3187 mSDtfsCounter, 2355 mSDsluCounter, 2294 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2355 SdHoareTripleChecker+Valid, 5176 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:59:32,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2355 Valid, 5176 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2021-11-21 01:59:32,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6217 states. [2021-11-21 01:59:32,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6217 to 6203. [2021-11-21 01:59:32,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6203 states, 3581 states have (on average 1.2239597877687796) internal successors, (4383), 3727 states have internal predecessors, (4383), 2016 states have call successors, (2016), 583 states have call predecessors, (2016), 581 states have return successors, (2014), 1983 states have call predecessors, (2014), 2014 states have call successors, (2014) [2021-11-21 01:59:32,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6203 states to 6203 states and 8413 transitions. [2021-11-21 01:59:32,984 INFO L78 Accepts]: Start accepts. Automaton has 6203 states and 8413 transitions. Word has length 89 [2021-11-21 01:59:32,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:59:32,986 INFO L470 AbstractCegarLoop]: Abstraction has 6203 states and 8413 transitions. [2021-11-21 01:59:32,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-21 01:59:32,986 INFO L276 IsEmpty]: Start isEmpty. Operand 6203 states and 8413 transitions. [2021-11-21 01:59:32,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-21 01:59:32,989 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:59:32,989 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:59:32,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 01:59:32,990 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 01:59:32,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:59:32,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1766399529, now seen corresponding path program 1 times [2021-11-21 01:59:32,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:59:32,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332261811] [2021-11-21 01:59:32,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:59:32,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:59:33,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:59:33,212 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:59:33,212 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:59:33,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332261811] [2021-11-21 01:59:33,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332261811] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:59:33,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:59:33,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:59:33,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257622506] [2021-11-21 01:59:33,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:59:33,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:59:33,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:59:33,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:59:33,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:59:33,215 INFO L87 Difference]: Start difference. First operand 6203 states and 8413 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-21 01:59:35,387 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:59:41,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:59:41,755 INFO L93 Difference]: Finished difference Result 6358 states and 8576 transitions. [2021-11-21 01:59:41,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:59:41,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 77 [2021-11-21 01:59:41,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:59:41,775 INFO L225 Difference]: With dead ends: 6358 [2021-11-21 01:59:41,775 INFO L226 Difference]: Without dead ends: 6356 [2021-11-21 01:59:41,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:59:41,779 INFO L933 BasicCegarLoop]: 3927 mSDtfsCounter, 2062 mSDsluCounter, 7604 mSDsCounter, 0 mSdLazyCounter, 1474 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2064 SdHoareTripleChecker+Valid, 10601 SdHoareTripleChecker+Invalid, 1476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:59:41,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2064 Valid, 10601 Invalid, 1476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1474 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2021-11-21 01:59:41,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6356 states. [2021-11-21 01:59:42,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6356 to 6233. [2021-11-21 01:59:42,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6233 states, 3596 states have (on average 1.2230255839822024) internal successors, (4398), 3742 states have internal predecessors, (4398), 2026 states have call successors, (2026), 588 states have call predecessors, (2026), 586 states have return successors, (2024), 1993 states have call predecessors, (2024), 2024 states have call successors, (2024) [2021-11-21 01:59:42,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6233 states to 6233 states and 8448 transitions. [2021-11-21 01:59:42,118 INFO L78 Accepts]: Start accepts. Automaton has 6233 states and 8448 transitions. Word has length 77 [2021-11-21 01:59:42,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:59:42,118 INFO L470 AbstractCegarLoop]: Abstraction has 6233 states and 8448 transitions. [2021-11-21 01:59:42,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-21 01:59:42,119 INFO L276 IsEmpty]: Start isEmpty. Operand 6233 states and 8448 transitions. [2021-11-21 01:59:42,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-21 01:59:42,120 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:59:42,120 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] [2021-11-21 01:59:42,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 01:59:42,121 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 01:59:42,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:59:42,121 INFO L85 PathProgramCache]: Analyzing trace with hash -116437013, now seen corresponding path program 1 times [2021-11-21 01:59:42,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:59:42,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197367930] [2021-11-21 01:59:42,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:59:42,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:59:42,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:59:42,344 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-11-21 01:59:42,345 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:59:42,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197367930] [2021-11-21 01:59:42,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197367930] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:59:42,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727424103] [2021-11-21 01:59:42,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:59:42,346 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:59:42,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:59:42,347 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:59:42,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:59:43,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:59:43,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 2955 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 01:59:43,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:59:43,807 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-21 01:59:43,807 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:59:43,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727424103] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:59:43,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 01:59:43,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-11-21 01:59:43,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223050612] [2021-11-21 01:59:43,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:59:43,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:59:43,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:59:43,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:59:43,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-21 01:59:43,811 INFO L87 Difference]: Start difference. First operand 6233 states and 8448 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-21 01:59:45,950 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:59:47,811 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:59:48,986 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:59:50,930 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:59:53,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:59:53,209 INFO L93 Difference]: Finished difference Result 13435 states and 18146 transitions. [2021-11-21 01:59:53,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:59:53,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 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 94 [2021-11-21 01:59:53,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:59:53,243 INFO L225 Difference]: With dead ends: 13435 [2021-11-21 01:59:53,244 INFO L226 Difference]: Without dead ends: 7220 [2021-11-21 01:59:53,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-21 01:59:53,276 INFO L933 BasicCegarLoop]: 3668 mSDtfsCounter, 2072 mSDsluCounter, 2711 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2072 SdHoareTripleChecker+Valid, 6035 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:59:53,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2072 Valid, 6035 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 856 Invalid, 1 Unknown, 0 Unchecked, 9.0s Time] [2021-11-21 01:59:53,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7220 states. [2021-11-21 01:59:53,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7220 to 7206. [2021-11-21 01:59:53,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7206 states, 4153 states have (on average 1.2183963399951843) internal successors, (5060), 4309 states have internal predecessors, (5060), 2328 states have call successors, (2328), 702 states have call predecessors, (2328), 700 states have return successors, (2326), 2295 states have call predecessors, (2326), 2326 states have call successors, (2326) [2021-11-21 01:59:53,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7206 states to 7206 states and 9714 transitions. [2021-11-21 01:59:53,718 INFO L78 Accepts]: Start accepts. Automaton has 7206 states and 9714 transitions. Word has length 94 [2021-11-21 01:59:53,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:59:53,719 INFO L470 AbstractCegarLoop]: Abstraction has 7206 states and 9714 transitions. [2021-11-21 01:59:53,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-21 01:59:53,720 INFO L276 IsEmpty]: Start isEmpty. Operand 7206 states and 9714 transitions. [2021-11-21 01:59:53,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-21 01:59:53,723 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:59:53,724 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:59:53,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:59:53,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-21 01:59:53,938 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 01:59:53,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:59:53,939 INFO L85 PathProgramCache]: Analyzing trace with hash 509693202, now seen corresponding path program 1 times [2021-11-21 01:59:53,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:59:53,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663260526] [2021-11-21 01:59:53,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:59:53,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:59:54,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:59:54,196 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:59:54,196 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:59:54,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663260526] [2021-11-21 01:59:54,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663260526] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:59:54,197 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:59:54,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:59:54,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237101054] [2021-11-21 01:59:54,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:59:54,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:59:54,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:59:54,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:59:54,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:59:54,199 INFO L87 Difference]: Start difference. First operand 7206 states and 9714 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 01:59:55,846 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:59:57,873 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:59:59,616 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:00:00,874 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:00:03,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:00:03,006 INFO L93 Difference]: Finished difference Result 7206 states and 9714 transitions. [2021-11-21 02:00:03,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 02:00:03,006 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 82 [2021-11-21 02:00:03,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:00:03,044 INFO L225 Difference]: With dead ends: 7206 [2021-11-21 02:00:03,044 INFO L226 Difference]: Without dead ends: 7204 [2021-11-21 02:00:03,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 02:00:03,052 INFO L933 BasicCegarLoop]: 2771 mSDtfsCounter, 3145 mSDsluCounter, 3161 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3147 SdHoareTripleChecker+Valid, 5538 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2021-11-21 02:00:03,052 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3147 Valid, 5538 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 790 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2021-11-21 02:00:03,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7204 states. [2021-11-21 02:00:03,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7204 to 7204. [2021-11-21 02:00:03,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7204 states, 4152 states have (on average 1.2182080924855492) internal successors, (5058), 4307 states have internal predecessors, (5058), 2328 states have call successors, (2328), 702 states have call predecessors, (2328), 700 states have return successors, (2326), 2295 states have call predecessors, (2326), 2326 states have call successors, (2326) [2021-11-21 02:00:03,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7204 states to 7204 states and 9712 transitions. [2021-11-21 02:00:03,660 INFO L78 Accepts]: Start accepts. Automaton has 7204 states and 9712 transitions. Word has length 82 [2021-11-21 02:00:03,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:00:03,661 INFO L470 AbstractCegarLoop]: Abstraction has 7204 states and 9712 transitions. [2021-11-21 02:00:03,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 02:00:03,662 INFO L276 IsEmpty]: Start isEmpty. Operand 7204 states and 9712 transitions. [2021-11-21 02:00:03,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-21 02:00:03,664 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:00:03,664 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:00:03,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-21 02:00:03,665 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:00:03,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:00:03,666 INFO L85 PathProgramCache]: Analyzing trace with hash 189083061, now seen corresponding path program 1 times [2021-11-21 02:00:03,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:00:03,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854264639] [2021-11-21 02:00:03,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:00:03,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:00:03,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:00:03,932 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 02:00:03,932 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:00:03,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854264639] [2021-11-21 02:00:03,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854264639] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:00:03,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:00:03,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 02:00:03,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418939763] [2021-11-21 02:00:03,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:00:03,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 02:00:03,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:00:03,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 02:00:03,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 02:00:03,936 INFO L87 Difference]: Start difference. First operand 7204 states and 9712 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 02:00:06,167 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:00:07,905 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:00:09,928 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:00:11,289 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:00:13,608 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:00:16,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:00:16,068 INFO L93 Difference]: Finished difference Result 7323 states and 9835 transitions. [2021-11-21 02:00:16,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 02:00:16,069 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 84 [2021-11-21 02:00:16,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:00:16,090 INFO L225 Difference]: With dead ends: 7323 [2021-11-21 02:00:16,091 INFO L226 Difference]: Without dead ends: 7321 [2021-11-21 02:00:16,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 02:00:16,096 INFO L933 BasicCegarLoop]: 4383 mSDtfsCounter, 2050 mSDsluCounter, 8119 mSDsCounter, 0 mSdLazyCounter, 1595 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2052 SdHoareTripleChecker+Valid, 11511 SdHoareTripleChecker+Invalid, 1598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1595 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2021-11-21 02:00:16,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2052 Valid, 11511 Invalid, 1598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1595 Invalid, 2 Unknown, 0 Unchecked, 11.9s Time] [2021-11-21 02:00:16,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7321 states. [2021-11-21 02:00:16,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7321 to 7212. [2021-11-21 02:00:16,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7212 states, 4157 states have (on average 1.2179456338705796) internal successors, (5063), 4312 states have internal predecessors, (5063), 2330 states have call successors, (2330), 703 states have call predecessors, (2330), 701 states have return successors, (2328), 2297 states have call predecessors, (2328), 2328 states have call successors, (2328) [2021-11-21 02:00:16,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7212 states to 7212 states and 9721 transitions. [2021-11-21 02:00:16,610 INFO L78 Accepts]: Start accepts. Automaton has 7212 states and 9721 transitions. Word has length 84 [2021-11-21 02:00:16,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:00:16,613 INFO L470 AbstractCegarLoop]: Abstraction has 7212 states and 9721 transitions. [2021-11-21 02:00:16,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 02:00:16,613 INFO L276 IsEmpty]: Start isEmpty. Operand 7212 states and 9721 transitions. [2021-11-21 02:00:16,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-21 02:00:16,615 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:00:16,615 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:00:16,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-21 02:00:16,615 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_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:00:16,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:00:16,616 INFO L85 PathProgramCache]: Analyzing trace with hash -2063761218, now seen corresponding path program 1 times [2021-11-21 02:00:16,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:00:16,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537469169] [2021-11-21 02:00:16,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:00:16,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:00:16,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:00:16,808 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 02:00:16,808 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:00:16,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537469169] [2021-11-21 02:00:16,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537469169] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:00:16,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:00:16,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 02:00:16,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279172713] [2021-11-21 02:00:16,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:00:16,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 02:00:16,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:00:16,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 02:00:16,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 02:00:16,810 INFO L87 Difference]: Start difference. First operand 7212 states and 9721 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-21 02:00:18,278 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:00:20,309 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:00:21,844 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:00:24,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:00:24,556 INFO L93 Difference]: Finished difference Result 7212 states and 9721 transitions. [2021-11-21 02:00:24,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 02:00:24,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 89 [2021-11-21 02:00:24,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:00:24,578 INFO L225 Difference]: With dead ends: 7212 [2021-11-21 02:00:24,578 INFO L226 Difference]: Without dead ends: 7210 [2021-11-21 02:00:24,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 02:00:24,583 INFO L933 BasicCegarLoop]: 2769 mSDtfsCounter, 3138 mSDsluCounter, 3163 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3140 SdHoareTripleChecker+Valid, 5538 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-21 02:00:24,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3140 Valid, 5538 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 790 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2021-11-21 02:00:24,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7210 states. [2021-11-21 02:00:24,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7210 to 7210. [2021-11-21 02:00:24,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7210 states, 4156 states have (on average 1.217757459095284) internal successors, (5061), 4310 states have internal predecessors, (5061), 2330 states have call successors, (2330), 703 states have call predecessors, (2330), 701 states have return successors, (2328), 2297 states have call predecessors, (2328), 2328 states have call successors, (2328) [2021-11-21 02:00:25,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7210 states to 7210 states and 9719 transitions. [2021-11-21 02:00:25,019 INFO L78 Accepts]: Start accepts. Automaton has 7210 states and 9719 transitions. Word has length 89 [2021-11-21 02:00:25,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:00:25,020 INFO L470 AbstractCegarLoop]: Abstraction has 7210 states and 9719 transitions. [2021-11-21 02:00:25,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-21 02:00:25,020 INFO L276 IsEmpty]: Start isEmpty. Operand 7210 states and 9719 transitions. [2021-11-21 02:00:25,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-21 02:00:25,022 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:00:25,022 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:00:25,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-21 02:00:25,023 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:00:25,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:00:25,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1282670593, now seen corresponding path program 1 times [2021-11-21 02:00:25,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:00:25,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522688182] [2021-11-21 02:00:25,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:00:25,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:00:25,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:00:25,285 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 02:00:25,286 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:00:25,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522688182] [2021-11-21 02:00:25,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522688182] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:00:25,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:00:25,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 02:00:25,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061891550] [2021-11-21 02:00:25,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:00:25,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 02:00:25,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:00:25,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 02:00:25,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 02:00:25,288 INFO L87 Difference]: Start difference. First operand 7210 states and 9719 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-21 02:00:27,498 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:00:33,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:00:33,550 INFO L93 Difference]: Finished difference Result 7317 states and 9829 transitions. [2021-11-21 02:00:33,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 02:00:33,551 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 94 [2021-11-21 02:00:33,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:00:33,577 INFO L225 Difference]: With dead ends: 7317 [2021-11-21 02:00:33,577 INFO L226 Difference]: Without dead ends: 7315 [2021-11-21 02:00:33,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 02:00:33,582 INFO L933 BasicCegarLoop]: 4381 mSDtfsCounter, 2046 mSDsluCounter, 8115 mSDsCounter, 0 mSdLazyCounter, 1596 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2048 SdHoareTripleChecker+Valid, 11505 SdHoareTripleChecker+Invalid, 1598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1596 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2021-11-21 02:00:33,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2048 Valid, 11505 Invalid, 1598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1596 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2021-11-21 02:00:33,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7315 states. [2021-11-21 02:00:34,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7315 to 7222. [2021-11-21 02:00:34,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7222 states, 4162 states have (on average 1.2174435367611725) internal successors, (5067), 4316 states have internal predecessors, (5067), 2334 states have call successors, (2334), 705 states have call predecessors, (2334), 703 states have return successors, (2332), 2301 states have call predecessors, (2332), 2332 states have call successors, (2332) [2021-11-21 02:00:34,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7222 states to 7222 states and 9733 transitions. [2021-11-21 02:00:34,104 INFO L78 Accepts]: Start accepts. Automaton has 7222 states and 9733 transitions. Word has length 94 [2021-11-21 02:00:34,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:00:34,105 INFO L470 AbstractCegarLoop]: Abstraction has 7222 states and 9733 transitions. [2021-11-21 02:00:34,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-21 02:00:34,105 INFO L276 IsEmpty]: Start isEmpty. Operand 7222 states and 9733 transitions. [2021-11-21 02:00:34,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-21 02:00:34,108 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:00:34,108 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:00:34,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-21 02:00:34,108 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:00:34,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:00:34,109 INFO L85 PathProgramCache]: Analyzing trace with hash -2031698941, now seen corresponding path program 1 times [2021-11-21 02:00:34,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:00:34,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033616509] [2021-11-21 02:00:34,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:00:34,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:00:34,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:00:34,349 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 02:00:34,349 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:00:34,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033616509] [2021-11-21 02:00:34,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033616509] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:00:34,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:00:34,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 02:00:34,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59170053] [2021-11-21 02:00:34,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:00:34,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 02:00:34,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:00:34,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 02:00:34,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 02:00:34,353 INFO L87 Difference]: Start difference. First operand 7222 states and 9733 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-21 02:00:36,660 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:00:44,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:00:44,146 INFO L93 Difference]: Finished difference Result 7315 states and 9827 transitions. [2021-11-21 02:00:44,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 02:00:44,147 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 99 [2021-11-21 02:00:44,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:00:44,171 INFO L225 Difference]: With dead ends: 7315 [2021-11-21 02:00:44,171 INFO L226 Difference]: Without dead ends: 7313 [2021-11-21 02:00:44,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 02:00:44,175 INFO L933 BasicCegarLoop]: 4381 mSDtfsCounter, 2043 mSDsluCounter, 8115 mSDsCounter, 0 mSdLazyCounter, 1596 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2045 SdHoareTripleChecker+Valid, 11505 SdHoareTripleChecker+Invalid, 1598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1596 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2021-11-21 02:00:44,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2045 Valid, 11505 Invalid, 1598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1596 Invalid, 1 Unknown, 0 Unchecked, 9.5s Time] [2021-11-21 02:00:44,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7313 states. [2021-11-21 02:00:44,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7313 to 7228. [2021-11-21 02:00:44,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7228 states, 4165 states have (on average 1.2172869147659064) internal successors, (5070), 4319 states have internal predecessors, (5070), 2336 states have call successors, (2336), 706 states have call predecessors, (2336), 704 states have return successors, (2334), 2303 states have call predecessors, (2334), 2334 states have call successors, (2334) [2021-11-21 02:00:44,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7228 states to 7228 states and 9740 transitions. [2021-11-21 02:00:44,569 INFO L78 Accepts]: Start accepts. Automaton has 7228 states and 9740 transitions. Word has length 99 [2021-11-21 02:00:44,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:00:44,570 INFO L470 AbstractCegarLoop]: Abstraction has 7228 states and 9740 transitions. [2021-11-21 02:00:44,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-21 02:00:44,570 INFO L276 IsEmpty]: Start isEmpty. Operand 7228 states and 9740 transitions. [2021-11-21 02:00:44,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-21 02:00:44,572 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:00:44,573 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:00:44,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-21 02:00:44,573 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:00:44,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:00:44,574 INFO L85 PathProgramCache]: Analyzing trace with hash 245048247, now seen corresponding path program 1 times [2021-11-21 02:00:44,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:00:44,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875031413] [2021-11-21 02:00:44,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:00:44,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:00:44,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:00:44,763 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 02:00:44,763 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:00:44,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875031413] [2021-11-21 02:00:44,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875031413] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:00:44,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:00:44,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 02:00:44,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191181507] [2021-11-21 02:00:44,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:00:44,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 02:00:44,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:00:44,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 02:00:44,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 02:00:44,768 INFO L87 Difference]: Start difference. First operand 7228 states and 9740 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-21 02:00:46,326 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:00:47,549 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:00:49,647 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:00:51,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:00:51,570 INFO L93 Difference]: Finished difference Result 7228 states and 9740 transitions. [2021-11-21 02:00:51,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 02:00:51,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 104 [2021-11-21 02:00:51,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:00:51,594 INFO L225 Difference]: With dead ends: 7228 [2021-11-21 02:00:51,594 INFO L226 Difference]: Without dead ends: 7226 [2021-11-21 02:00:51,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 02:00:51,599 INFO L933 BasicCegarLoop]: 2767 mSDtfsCounter, 3133 mSDsluCounter, 3161 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3135 SdHoareTripleChecker+Valid, 5534 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-11-21 02:00:51,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3135 Valid, 5534 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2021-11-21 02:00:51,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7226 states. [2021-11-21 02:00:52,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7226 to 7226. [2021-11-21 02:00:52,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7226 states, 4164 states have (on average 1.2170989433237271) internal successors, (5068), 4317 states have internal predecessors, (5068), 2336 states have call successors, (2336), 706 states have call predecessors, (2336), 704 states have return successors, (2334), 2303 states have call predecessors, (2334), 2334 states have call successors, (2334) [2021-11-21 02:00:52,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7226 states to 7226 states and 9738 transitions. [2021-11-21 02:00:52,051 INFO L78 Accepts]: Start accepts. Automaton has 7226 states and 9738 transitions. Word has length 104 [2021-11-21 02:00:52,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:00:52,052 INFO L470 AbstractCegarLoop]: Abstraction has 7226 states and 9738 transitions. [2021-11-21 02:00:52,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-21 02:00:52,052 INFO L276 IsEmpty]: Start isEmpty. Operand 7226 states and 9738 transitions. [2021-11-21 02:00:52,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-21 02:00:52,054 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:00:52,054 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:00:52,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-21 02:00:52,055 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:00:52,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:00:52,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1698068033, now seen corresponding path program 1 times [2021-11-21 02:00:52,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:00:52,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737488582] [2021-11-21 02:00:52,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:00:52,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:00:52,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:00:52,253 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 02:00:52,253 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:00:52,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737488582] [2021-11-21 02:00:52,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737488582] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:00:52,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:00:52,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 02:00:52,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895166679] [2021-11-21 02:00:52,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:00:52,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 02:00:52,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:00:52,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 02:00:52,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 02:00:52,256 INFO L87 Difference]: Start difference. First operand 7226 states and 9738 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-21 02:00:57,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:00:57,038 INFO L93 Difference]: Finished difference Result 7226 states and 9738 transitions. [2021-11-21 02:00:57,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 02:00:57,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 109 [2021-11-21 02:00:57,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:00:57,057 INFO L225 Difference]: With dead ends: 7226 [2021-11-21 02:00:57,057 INFO L226 Difference]: Without dead ends: 7224 [2021-11-21 02:00:57,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 02:00:57,062 INFO L933 BasicCegarLoop]: 2765 mSDtfsCounter, 3130 mSDsluCounter, 3159 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3132 SdHoareTripleChecker+Valid, 5530 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-11-21 02:00:57,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3132 Valid, 5530 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2021-11-21 02:00:57,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7224 states. [2021-11-21 02:00:57,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7224 to 7224. [2021-11-21 02:00:57,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7224 states, 4163 states have (on average 1.2169108815757868) internal successors, (5066), 4315 states have internal predecessors, (5066), 2336 states have call successors, (2336), 706 states have call predecessors, (2336), 704 states have return successors, (2334), 2303 states have call predecessors, (2334), 2334 states have call successors, (2334) [2021-11-21 02:00:57,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7224 states to 7224 states and 9736 transitions. [2021-11-21 02:00:57,449 INFO L78 Accepts]: Start accepts. Automaton has 7224 states and 9736 transitions. Word has length 109 [2021-11-21 02:00:57,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:00:57,450 INFO L470 AbstractCegarLoop]: Abstraction has 7224 states and 9736 transitions. [2021-11-21 02:00:57,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-21 02:00:57,450 INFO L276 IsEmpty]: Start isEmpty. Operand 7224 states and 9736 transitions. [2021-11-21 02:00:57,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-21 02:00:57,453 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:00:57,453 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:00:57,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-21 02:00:57,453 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:00:57,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:00:57,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1551637311, now seen corresponding path program 1 times [2021-11-21 02:00:57,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:00:57,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004778484] [2021-11-21 02:00:57,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:00:57,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:00:57,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:00:57,698 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 02:00:57,699 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:00:57,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004778484] [2021-11-21 02:00:57,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004778484] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:00:57,699 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:00:57,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 02:00:57,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7208664] [2021-11-21 02:00:57,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:00:57,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 02:00:57,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:00:57,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 02:00:57,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 02:00:57,702 INFO L87 Difference]: Start difference. First operand 7224 states and 9736 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-21 02:00:59,910 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:01:06,121 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:01:08,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:01:08,574 INFO L93 Difference]: Finished difference Result 7305 states and 9817 transitions. [2021-11-21 02:01:08,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 02:01:08,579 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 114 [2021-11-21 02:01:08,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:01:08,608 INFO L225 Difference]: With dead ends: 7305 [2021-11-21 02:01:08,608 INFO L226 Difference]: Without dead ends: 7303 [2021-11-21 02:01:08,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 02:01:08,614 INFO L933 BasicCegarLoop]: 4377 mSDtfsCounter, 2034 mSDsluCounter, 8107 mSDsCounter, 0 mSdLazyCounter, 1595 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2036 SdHoareTripleChecker+Valid, 11493 SdHoareTripleChecker+Invalid, 1598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1595 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2021-11-21 02:01:08,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2036 Valid, 11493 Invalid, 1598 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1595 Invalid, 2 Unknown, 0 Unchecked, 10.5s Time] [2021-11-21 02:01:08,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7303 states. [2021-11-21 02:01:09,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7303 to 7242. [2021-11-21 02:01:09,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7242 states, 4172 states have (on average 1.2164429530201342) internal successors, (5075), 4324 states have internal predecessors, (5075), 2342 states have call successors, (2342), 709 states have call predecessors, (2342), 707 states have return successors, (2340), 2309 states have call predecessors, (2340), 2340 states have call successors, (2340) [2021-11-21 02:01:09,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7242 states to 7242 states and 9757 transitions. [2021-11-21 02:01:09,115 INFO L78 Accepts]: Start accepts. Automaton has 7242 states and 9757 transitions. Word has length 114 [2021-11-21 02:01:09,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:01:09,115 INFO L470 AbstractCegarLoop]: Abstraction has 7242 states and 9757 transitions. [2021-11-21 02:01:09,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-21 02:01:09,116 INFO L276 IsEmpty]: Start isEmpty. Operand 7242 states and 9757 transitions. [2021-11-21 02:01:09,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-21 02:01:09,119 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:01:09,119 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:01:09,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-21 02:01:09,119 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:01:09,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:01:09,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1167613232, now seen corresponding path program 1 times [2021-11-21 02:01:09,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:01:09,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163828528] [2021-11-21 02:01:09,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:01:09,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:01:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:01:09,311 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 02:01:09,312 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:01:09,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163828528] [2021-11-21 02:01:09,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163828528] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:01:09,312 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:01:09,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 02:01:09,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741009509] [2021-11-21 02:01:09,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:01:09,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 02:01:09,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:01:09,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 02:01:09,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 02:01:09,315 INFO L87 Difference]: Start difference. First operand 7242 states and 9757 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-21 02:01:10,727 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:01:14,028 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:01:16,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:01:16,017 INFO L93 Difference]: Finished difference Result 7242 states and 9757 transitions. [2021-11-21 02:01:16,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 02:01:16,017 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 119 [2021-11-21 02:01:16,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:01:16,040 INFO L225 Difference]: With dead ends: 7242 [2021-11-21 02:01:16,041 INFO L226 Difference]: Without dead ends: 7240 [2021-11-21 02:01:16,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 02:01:16,045 INFO L933 BasicCegarLoop]: 2763 mSDtfsCounter, 3126 mSDsluCounter, 3157 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3128 SdHoareTripleChecker+Valid, 5526 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-21 02:01:16,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3128 Valid, 5526 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 790 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2021-11-21 02:01:16,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7240 states. [2021-11-21 02:01:16,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7240 to 7240. [2021-11-21 02:01:16,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7240 states, 4171 states have (on average 1.2162550947015105) internal successors, (5073), 4322 states have internal predecessors, (5073), 2342 states have call successors, (2342), 709 states have call predecessors, (2342), 707 states have return successors, (2340), 2309 states have call predecessors, (2340), 2340 states have call successors, (2340) [2021-11-21 02:01:16,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7240 states to 7240 states and 9755 transitions. [2021-11-21 02:01:16,517 INFO L78 Accepts]: Start accepts. Automaton has 7240 states and 9755 transitions. Word has length 119 [2021-11-21 02:01:16,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:01:16,518 INFO L470 AbstractCegarLoop]: Abstraction has 7240 states and 9755 transitions. [2021-11-21 02:01:16,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-21 02:01:16,518 INFO L276 IsEmpty]: Start isEmpty. Operand 7240 states and 9755 transitions. [2021-11-21 02:01:16,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-21 02:01:16,521 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:01:16,521 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:01:16,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-21 02:01:16,522 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:01:16,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:01:16,522 INFO L85 PathProgramCache]: Analyzing trace with hash 979215550, now seen corresponding path program 1 times [2021-11-21 02:01:16,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:01:16,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749313222] [2021-11-21 02:01:16,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:01:16,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:01:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:01:16,708 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 02:01:16,708 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:01:16,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749313222] [2021-11-21 02:01:16,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749313222] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:01:16,709 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:01:16,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 02:01:16,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551105096] [2021-11-21 02:01:16,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:01:16,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 02:01:16,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:01:16,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 02:01:16,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 02:01:16,717 INFO L87 Difference]: Start difference. First operand 7240 states and 9755 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-21 02:01:18,543 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:01:20,582 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:01:23,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:01:23,930 INFO L93 Difference]: Finished difference Result 7240 states and 9755 transitions. [2021-11-21 02:01:23,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 02:01:23,931 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 124 [2021-11-21 02:01:23,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:01:23,954 INFO L225 Difference]: With dead ends: 7240 [2021-11-21 02:01:23,954 INFO L226 Difference]: Without dead ends: 7238 [2021-11-21 02:01:23,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 02:01:23,959 INFO L933 BasicCegarLoop]: 2761 mSDtfsCounter, 3123 mSDsluCounter, 3155 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3125 SdHoareTripleChecker+Valid, 5522 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-21 02:01:23,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3125 Valid, 5522 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 790 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2021-11-21 02:01:23,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7238 states. [2021-11-21 02:01:24,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7238 to 7238. [2021-11-21 02:01:24,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7238 states, 4170 states have (on average 1.2160671462829735) internal successors, (5071), 4320 states have internal predecessors, (5071), 2342 states have call successors, (2342), 709 states have call predecessors, (2342), 707 states have return successors, (2340), 2309 states have call predecessors, (2340), 2340 states have call successors, (2340) [2021-11-21 02:01:24,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7238 states to 7238 states and 9753 transitions. [2021-11-21 02:01:24,372 INFO L78 Accepts]: Start accepts. Automaton has 7238 states and 9753 transitions. Word has length 124 [2021-11-21 02:01:24,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:01:24,373 INFO L470 AbstractCegarLoop]: Abstraction has 7238 states and 9753 transitions. [2021-11-21 02:01:24,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-21 02:01:24,373 INFO L276 IsEmpty]: Start isEmpty. Operand 7238 states and 9753 transitions. [2021-11-21 02:01:24,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-21 02:01:24,377 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:01:24,377 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:01:24,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-21 02:01:24,378 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:01:24,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:01:24,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1834713284, now seen corresponding path program 1 times [2021-11-21 02:01:24,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:01:24,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126164821] [2021-11-21 02:01:24,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:01:24,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:01:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:01:24,620 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 02:01:24,620 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:01:24,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126164821] [2021-11-21 02:01:24,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126164821] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:01:24,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:01:24,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 02:01:24,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132905332] [2021-11-21 02:01:24,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:01:24,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 02:01:24,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:01:24,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 02:01:24,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 02:01:24,622 INFO L87 Difference]: Start difference. First operand 7238 states and 9753 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-21 02:01:26,003 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:01:28,036 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:01:31,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:01:31,345 INFO L93 Difference]: Finished difference Result 7238 states and 9753 transitions. [2021-11-21 02:01:31,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 02:01:31,346 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 129 [2021-11-21 02:01:31,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:01:31,367 INFO L225 Difference]: With dead ends: 7238 [2021-11-21 02:01:31,367 INFO L226 Difference]: Without dead ends: 7236 [2021-11-21 02:01:31,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 02:01:31,372 INFO L933 BasicCegarLoop]: 2759 mSDtfsCounter, 3120 mSDsluCounter, 3153 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3122 SdHoareTripleChecker+Valid, 5518 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-21 02:01:31,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3122 Valid, 5518 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 790 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2021-11-21 02:01:31,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7236 states. [2021-11-21 02:01:31,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7236 to 7236. [2021-11-21 02:01:31,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7236 states, 4169 states have (on average 1.2158791076996882) internal successors, (5069), 4318 states have internal predecessors, (5069), 2342 states have call successors, (2342), 709 states have call predecessors, (2342), 707 states have return successors, (2340), 2309 states have call predecessors, (2340), 2340 states have call successors, (2340) [2021-11-21 02:01:31,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7236 states to 7236 states and 9751 transitions. [2021-11-21 02:01:31,815 INFO L78 Accepts]: Start accepts. Automaton has 7236 states and 9751 transitions. Word has length 129 [2021-11-21 02:01:31,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:01:31,815 INFO L470 AbstractCegarLoop]: Abstraction has 7236 states and 9751 transitions. [2021-11-21 02:01:31,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-21 02:01:31,816 INFO L276 IsEmpty]: Start isEmpty. Operand 7236 states and 9751 transitions. [2021-11-21 02:01:31,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-21 02:01:31,820 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:01:31,820 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:01:31,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-21 02:01:31,820 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:01:31,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:01:31,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1198184820, now seen corresponding path program 1 times [2021-11-21 02:01:31,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:01:31,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279737202] [2021-11-21 02:01:31,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:01:31,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:01:31,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:01:32,045 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2021-11-21 02:01:32,045 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:01:32,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279737202] [2021-11-21 02:01:32,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279737202] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:01:32,046 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:01:32,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-21 02:01:32,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440979438] [2021-11-21 02:01:32,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:01:32,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 02:01:32,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:01:32,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 02:01:32,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-21 02:01:32,050 INFO L87 Difference]: Start difference. First operand 7236 states and 9751 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2021-11-21 02:01:34,147 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:01:36,921 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:01:39,349 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:01:40,449 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:01:42,431 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:01:48,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:01:48,203 INFO L93 Difference]: Finished difference Result 12265 states and 16737 transitions. [2021-11-21 02:01:48,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 02:01:48,209 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) Word has length 144 [2021-11-21 02:01:48,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:01:48,235 INFO L225 Difference]: With dead ends: 12265 [2021-11-21 02:01:48,235 INFO L226 Difference]: Without dead ends: 7904 [2021-11-21 02:01:48,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-21 02:01:48,260 INFO L933 BasicCegarLoop]: 3690 mSDtfsCounter, 530 mSDsluCounter, 15973 mSDsCounter, 0 mSdLazyCounter, 2504 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 17724 SdHoareTripleChecker+Invalid, 2516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2504 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2021-11-21 02:01:48,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [826 Valid, 17724 Invalid, 2516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 2504 Invalid, 2 Unknown, 0 Unchecked, 15.7s Time] [2021-11-21 02:01:48,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7904 states. [2021-11-21 02:01:48,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7904 to 7240. [2021-11-21 02:01:48,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7240 states, 4172 states have (on average 1.2157238734419942) internal successors, (5072), 4321 states have internal predecessors, (5072), 2342 states have call successors, (2342), 709 states have call predecessors, (2342), 708 states have return successors, (2352), 2310 states have call predecessors, (2352), 2340 states have call successors, (2352) [2021-11-21 02:01:48,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7240 states to 7240 states and 9766 transitions. [2021-11-21 02:01:48,755 INFO L78 Accepts]: Start accepts. Automaton has 7240 states and 9766 transitions. Word has length 144 [2021-11-21 02:01:48,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:01:48,756 INFO L470 AbstractCegarLoop]: Abstraction has 7240 states and 9766 transitions. [2021-11-21 02:01:48,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2021-11-21 02:01:48,756 INFO L276 IsEmpty]: Start isEmpty. Operand 7240 states and 9766 transitions. [2021-11-21 02:01:48,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-21 02:01:48,761 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:01:48,761 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:01:48,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-21 02:01:48,762 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:01:48,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:01:48,762 INFO L85 PathProgramCache]: Analyzing trace with hash 394791702, now seen corresponding path program 1 times [2021-11-21 02:01:48,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:01:48,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160922149] [2021-11-21 02:01:48,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:01:48,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:01:48,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:01:48,945 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 02:01:48,945 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:01:48,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160922149] [2021-11-21 02:01:48,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160922149] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:01:48,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:01:48,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 02:01:48,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214191771] [2021-11-21 02:01:48,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:01:48,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 02:01:48,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:01:48,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 02:01:48,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 02:01:48,948 INFO L87 Difference]: Start difference. First operand 7240 states and 9766 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-21 02:01:50,421 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:01:52,379 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:01:54,188 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:01:56,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:01:56,159 INFO L93 Difference]: Finished difference Result 7240 states and 9766 transitions. [2021-11-21 02:01:56,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 02:01:56,159 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 134 [2021-11-21 02:01:56,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:01:56,187 INFO L225 Difference]: With dead ends: 7240 [2021-11-21 02:01:56,187 INFO L226 Difference]: Without dead ends: 7238 [2021-11-21 02:01:56,191 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 02:01:56,192 INFO L933 BasicCegarLoop]: 2757 mSDtfsCounter, 3117 mSDsluCounter, 3151 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3119 SdHoareTripleChecker+Valid, 5514 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-21 02:01:56,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3119 Valid, 5514 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2021-11-21 02:01:56,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7238 states. [2021-11-21 02:01:56,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7238 to 7238. [2021-11-21 02:01:56,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7238 states, 4171 states have (on average 1.2155358427235674) internal successors, (5070), 4319 states have internal predecessors, (5070), 2342 states have call successors, (2342), 709 states have call predecessors, (2342), 708 states have return successors, (2352), 2310 states have call predecessors, (2352), 2340 states have call successors, (2352) [2021-11-21 02:01:56,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7238 states to 7238 states and 9764 transitions. [2021-11-21 02:01:56,749 INFO L78 Accepts]: Start accepts. Automaton has 7238 states and 9764 transitions. Word has length 134 [2021-11-21 02:01:56,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:01:56,750 INFO L470 AbstractCegarLoop]: Abstraction has 7238 states and 9764 transitions. [2021-11-21 02:01:56,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-21 02:01:56,750 INFO L276 IsEmpty]: Start isEmpty. Operand 7238 states and 9764 transitions. [2021-11-21 02:01:56,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-11-21 02:01:56,755 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:01:56,755 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:01:56,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-21 02:01:56,756 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:01:56,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:01:56,756 INFO L85 PathProgramCache]: Analyzing trace with hash 228519831, now seen corresponding path program 1 times [2021-11-21 02:01:56,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:01:56,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600469905] [2021-11-21 02:01:56,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:01:56,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:01:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:01:57,138 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2021-11-21 02:01:57,138 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:01:57,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600469905] [2021-11-21 02:01:57,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600469905] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 02:01:57,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614602373] [2021-11-21 02:01:57,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:01:57,139 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 02:01:57,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 02:01:57,141 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 02:01:57,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 02:01:58,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:01:58,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 3320 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-21 02:01:58,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 02:01:58,849 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-11-21 02:01:58,849 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 02:01:58,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614602373] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:01:58,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 02:01:58,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [8] total 17 [2021-11-21 02:01:58,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341498784] [2021-11-21 02:01:58,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:01:58,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-21 02:01:58,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:01:58,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-21 02:01:58,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2021-11-21 02:01:58,851 INFO L87 Difference]: Start difference. First operand 7238 states and 9764 transitions. Second operand has 11 states, 8 states have (on average 7.625) internal successors, (61), 10 states have internal predecessors, (61), 6 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2021-11-21 02:02:01,502 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:02:03,562 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:02:05,322 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:02:10,439 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:02:19,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:02:19,605 INFO L93 Difference]: Finished difference Result 14927 states and 20288 transitions. [2021-11-21 02:02:19,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-21 02:02:19,606 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 7.625) internal successors, (61), 10 states have internal predecessors, (61), 6 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) Word has length 160 [2021-11-21 02:02:19,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:02:19,635 INFO L225 Difference]: With dead ends: 14927 [2021-11-21 02:02:19,636 INFO L226 Difference]: Without dead ends: 7793 [2021-11-21 02:02:19,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2021-11-21 02:02:19,673 INFO L933 BasicCegarLoop]: 3025 mSDtfsCounter, 187 mSDsluCounter, 30273 mSDsCounter, 0 mSdLazyCounter, 4567 mSolverCounterSat, 275 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 29699 SdHoareTripleChecker+Invalid, 4843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 4567 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.0s IncrementalHoareTripleChecker+Time [2021-11-21 02:02:19,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 29699 Invalid, 4843 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [275 Valid, 4567 Invalid, 1 Unknown, 0 Unchecked, 20.0s Time] [2021-11-21 02:02:19,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7793 states. [2021-11-21 02:02:20,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7793 to 7274. [2021-11-21 02:02:20,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7274 states, 4195 states have (on average 1.2143027413587604) internal successors, (5094), 4343 states have internal predecessors, (5094), 2354 states have call successors, (2354), 709 states have call predecessors, (2354), 708 states have return successors, (2364), 2322 states have call predecessors, (2364), 2352 states have call successors, (2364) [2021-11-21 02:02:20,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7274 states to 7274 states and 9812 transitions. [2021-11-21 02:02:20,310 INFO L78 Accepts]: Start accepts. Automaton has 7274 states and 9812 transitions. Word has length 160 [2021-11-21 02:02:20,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:02:20,311 INFO L470 AbstractCegarLoop]: Abstraction has 7274 states and 9812 transitions. [2021-11-21 02:02:20,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 7.625) internal successors, (61), 10 states have internal predecessors, (61), 6 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2021-11-21 02:02:20,311 INFO L276 IsEmpty]: Start isEmpty. Operand 7274 states and 9812 transitions. [2021-11-21 02:02:20,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-21 02:02:20,316 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:02:20,316 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:02:20,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 02:02:20,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-11-21 02:02:20,530 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:02:20,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:02:20,531 INFO L85 PathProgramCache]: Analyzing trace with hash 263626427, now seen corresponding path program 1 times [2021-11-21 02:02:20,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:02:20,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895874240] [2021-11-21 02:02:20,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:02:20,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:02:20,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:02:20,886 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2021-11-21 02:02:20,887 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:02:20,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895874240] [2021-11-21 02:02:20,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895874240] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:02:20,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:02:20,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 02:02:20,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262752534] [2021-11-21 02:02:20,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:02:20,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 02:02:20,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:02:20,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 02:02:20,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 02:02:20,890 INFO L87 Difference]: Start difference. First operand 7274 states and 9812 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-21 02:02:24,445 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:02:25,616 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:02:28,370 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:02:31,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:02:31,817 INFO L93 Difference]: Finished difference Result 12567 states and 17215 transitions. [2021-11-21 02:02:31,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 02:02:31,818 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 153 [2021-11-21 02:02:31,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:02:31,841 INFO L225 Difference]: With dead ends: 12567 [2021-11-21 02:02:31,841 INFO L226 Difference]: Without dead ends: 8186 [2021-11-21 02:02:31,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 02:02:31,856 INFO L933 BasicCegarLoop]: 3103 mSDtfsCounter, 270 mSDsluCounter, 6663 mSDsCounter, 0 mSdLazyCounter, 1232 mSolverCounterSat, 172 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 8967 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 1232 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2021-11-21 02:02:31,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 8967 Invalid, 1406 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [172 Valid, 1232 Invalid, 2 Unknown, 0 Unchecked, 10.3s Time] [2021-11-21 02:02:31,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8186 states. [2021-11-21 02:02:32,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8186 to 7280. [2021-11-21 02:02:32,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7280 states, 4201 states have (on average 1.2139966674601286) internal successors, (5100), 4349 states have internal predecessors, (5100), 2354 states have call successors, (2354), 709 states have call predecessors, (2354), 708 states have return successors, (2364), 2322 states have call predecessors, (2364), 2352 states have call successors, (2364) [2021-11-21 02:02:32,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7280 states to 7280 states and 9818 transitions. [2021-11-21 02:02:32,442 INFO L78 Accepts]: Start accepts. Automaton has 7280 states and 9818 transitions. Word has length 153 [2021-11-21 02:02:32,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:02:32,443 INFO L470 AbstractCegarLoop]: Abstraction has 7280 states and 9818 transitions. [2021-11-21 02:02:32,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-21 02:02:32,443 INFO L276 IsEmpty]: Start isEmpty. Operand 7280 states and 9818 transitions. [2021-11-21 02:02:32,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-21 02:02:32,446 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:02:32,447 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:02:32,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-21 02:02:32,447 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:02:32,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:02:32,448 INFO L85 PathProgramCache]: Analyzing trace with hash 989447936, now seen corresponding path program 1 times [2021-11-21 02:02:32,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:02:32,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782540339] [2021-11-21 02:02:32,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:02:32,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:02:32,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:02:32,652 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 02:02:32,653 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:02:32,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782540339] [2021-11-21 02:02:32,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782540339] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:02:32,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:02:32,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 02:02:32,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228474143] [2021-11-21 02:02:32,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:02:32,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 02:02:32,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:02:32,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 02:02:32,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 02:02:32,655 INFO L87 Difference]: Start difference. First operand 7280 states and 9818 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-21 02:02:34,888 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:02:39,369 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:02:41,025 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:02:43,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:02:43,785 INFO L93 Difference]: Finished difference Result 7333 states and 9868 transitions. [2021-11-21 02:02:43,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 02:02:43,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 139 [2021-11-21 02:02:43,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:02:43,807 INFO L225 Difference]: With dead ends: 7333 [2021-11-21 02:02:43,807 INFO L226 Difference]: Without dead ends: 7331 [2021-11-21 02:02:43,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 02:02:43,812 INFO L933 BasicCegarLoop]: 3770 mSDtfsCounter, 2019 mSDsluCounter, 7410 mSDsCounter, 0 mSdLazyCounter, 1432 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2021 SdHoareTripleChecker+Valid, 10271 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1432 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2021-11-21 02:02:43,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2021 Valid, 10271 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1432 Invalid, 1 Unknown, 0 Unchecked, 10.7s Time] [2021-11-21 02:02:43,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7331 states. [2021-11-21 02:02:44,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7331 to 7310. [2021-11-21 02:02:44,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7310 states, 4216 states have (on average 1.213235294117647) internal successors, (5115), 4364 states have internal predecessors, (5115), 2364 states have call successors, (2364), 714 states have call predecessors, (2364), 713 states have return successors, (2374), 2332 states have call predecessors, (2374), 2362 states have call successors, (2374) [2021-11-21 02:02:44,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7310 states to 7310 states and 9853 transitions. [2021-11-21 02:02:44,476 INFO L78 Accepts]: Start accepts. Automaton has 7310 states and 9853 transitions. Word has length 139 [2021-11-21 02:02:44,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:02:44,476 INFO L470 AbstractCegarLoop]: Abstraction has 7310 states and 9853 transitions. [2021-11-21 02:02:44,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-21 02:02:44,477 INFO L276 IsEmpty]: Start isEmpty. Operand 7310 states and 9853 transitions. [2021-11-21 02:02:44,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-21 02:02:44,481 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:02:44,481 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:02:44,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-21 02:02:44,482 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:02:44,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:02:44,482 INFO L85 PathProgramCache]: Analyzing trace with hash -2018400197, now seen corresponding path program 1 times [2021-11-21 02:02:44,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:02:44,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081222466] [2021-11-21 02:02:44,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:02:44,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:02:44,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:02:44,694 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 02:02:44,694 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:02:44,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081222466] [2021-11-21 02:02:44,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081222466] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:02:44,695 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:02:44,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 02:02:44,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687944930] [2021-11-21 02:02:44,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:02:44,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 02:02:44,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:02:44,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 02:02:44,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 02:02:44,697 INFO L87 Difference]: Start difference. First operand 7310 states and 9853 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-21 02:02:46,926 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:02:52,950 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:02:55,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:02:55,431 INFO L93 Difference]: Finished difference Result 7331 states and 9866 transitions. [2021-11-21 02:02:55,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 02:02:55,431 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 144 [2021-11-21 02:02:55,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:02:55,453 INFO L225 Difference]: With dead ends: 7331 [2021-11-21 02:02:55,453 INFO L226 Difference]: Without dead ends: 7176 [2021-11-21 02:02:55,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 02:02:55,457 INFO L933 BasicCegarLoop]: 3771 mSDtfsCounter, 2015 mSDsluCounter, 7412 mSDsCounter, 0 mSdLazyCounter, 1432 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2015 SdHoareTripleChecker+Valid, 10273 SdHoareTripleChecker+Invalid, 1433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1432 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2021-11-21 02:02:55,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2015 Valid, 10273 Invalid, 1433 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1432 Invalid, 1 Unknown, 0 Unchecked, 10.2s Time] [2021-11-21 02:02:55,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7176 states. [2021-11-21 02:02:55,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7176 to 7161. [2021-11-21 02:02:55,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7161 states, 4139 states have (on average 1.2157525972457115) internal successors, (5032), 4284 states have internal predecessors, (5032), 2313 states have call successors, (2313), 694 states have call predecessors, (2313), 692 states have return successors, (2321), 2283 states have call predecessors, (2321), 2309 states have call successors, (2321) [2021-11-21 02:02:55,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7161 states to 7161 states and 9666 transitions. [2021-11-21 02:02:55,972 INFO L78 Accepts]: Start accepts. Automaton has 7161 states and 9666 transitions. Word has length 144 [2021-11-21 02:02:55,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:02:55,972 INFO L470 AbstractCegarLoop]: Abstraction has 7161 states and 9666 transitions. [2021-11-21 02:02:55,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-21 02:02:55,972 INFO L276 IsEmpty]: Start isEmpty. Operand 7161 states and 9666 transitions. [2021-11-21 02:02:55,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-21 02:02:55,975 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:02:55,976 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:02:55,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-21 02:02:55,976 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:02:55,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:02:55,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1967441139, now seen corresponding path program 1 times [2021-11-21 02:02:55,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:02:55,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366714566] [2021-11-21 02:02:55,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:02:55,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:02:56,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:02:56,350 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2021-11-21 02:02:56,350 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:02:56,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366714566] [2021-11-21 02:02:56,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366714566] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 02:02:56,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098359756] [2021-11-21 02:02:56,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:02:56,351 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 02:02:56,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 02:02:56,352 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 02:02:56,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 02:02:57,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:02:57,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 3404 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-21 02:02:57,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 02:02:58,157 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-11-21 02:02:58,158 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 02:02:58,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098359756] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:02:58,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 02:02:58,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [8] total 18 [2021-11-21 02:02:58,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370484103] [2021-11-21 02:02:58,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:02:58,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-21 02:02:58,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:02:58,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-21 02:02:58,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2021-11-21 02:02:58,160 INFO L87 Difference]: Start difference. First operand 7161 states and 9666 transitions. Second operand has 12 states, 9 states have (on average 7.555555555555555) internal successors, (68), 11 states have internal predecessors, (68), 7 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2021-11-21 02:02:59,699 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:03:01,733 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:03:04,328 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:03:07,127 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:03:09,516 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:03:12,723 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:03:14,738 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:03:16,757 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:03:18,774 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:03:19,995 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:03:28,148 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:03:30,184 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:03:32,096 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:03:34,040 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:03:36,077 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:03:47,585 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:03:48,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:03:48,245 INFO L93 Difference]: Finished difference Result 14560 states and 20366 transitions. [2021-11-21 02:03:48,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-21 02:03:48,246 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 7.555555555555555) internal successors, (68), 11 states have internal predecessors, (68), 7 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) Word has length 171 [2021-11-21 02:03:48,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:03:48,268 INFO L225 Difference]: With dead ends: 14560 [2021-11-21 02:03:48,268 INFO L226 Difference]: Without dead ends: 7481 [2021-11-21 02:03:48,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=648, Unknown=0, NotChecked=0, Total=756 [2021-11-21 02:03:48,291 INFO L933 BasicCegarLoop]: 4444 mSDtfsCounter, 3795 mSDsluCounter, 45350 mSDsCounter, 0 mSdLazyCounter, 6050 mSolverCounterSat, 2172 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4266 SdHoareTripleChecker+Valid, 45057 SdHoareTripleChecker+Invalid, 8231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2172 IncrementalHoareTripleChecker+Valid, 6050 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.2s IncrementalHoareTripleChecker+Time [2021-11-21 02:03:48,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4266 Valid, 45057 Invalid, 8231 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2172 Valid, 6050 Invalid, 9 Unknown, 0 Unchecked, 49.2s Time] [2021-11-21 02:03:48,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7481 states. [2021-11-21 02:03:48,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7481 to 4491. [2021-11-21 02:03:48,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4491 states, 2598 states have (on average 1.2186297151655119) internal successors, (3166), 2696 states have internal predecessors, (3166), 1442 states have call successors, (1442), 434 states have call predecessors, (1442), 434 states have return successors, (1452), 1421 states have call predecessors, (1452), 1440 states have call successors, (1452) [2021-11-21 02:03:48,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4491 states to 4491 states and 6060 transitions. [2021-11-21 02:03:48,673 INFO L78 Accepts]: Start accepts. Automaton has 4491 states and 6060 transitions. Word has length 171 [2021-11-21 02:03:48,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:03:48,674 INFO L470 AbstractCegarLoop]: Abstraction has 4491 states and 6060 transitions. [2021-11-21 02:03:48,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 7.555555555555555) internal successors, (68), 11 states have internal predecessors, (68), 7 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (28), 7 states have call predecessors, (28), 7 states have call successors, (28) [2021-11-21 02:03:48,674 INFO L276 IsEmpty]: Start isEmpty. Operand 4491 states and 6060 transitions. [2021-11-21 02:03:48,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-21 02:03:48,677 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:03:48,677 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:03:48,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-21 02:03:48,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 02:03:48,890 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:03:48,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:03:48,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1836015712, now seen corresponding path program 1 times [2021-11-21 02:03:48,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:03:48,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493770156] [2021-11-21 02:03:48,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:03:48,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:03:49,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:03:49,250 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2021-11-21 02:03:49,251 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:03:49,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493770156] [2021-11-21 02:03:49,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493770156] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:03:49,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:03:49,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 02:03:49,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667283675] [2021-11-21 02:03:49,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:03:49,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 02:03:49,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:03:49,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 02:03:49,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 02:03:49,253 INFO L87 Difference]: Start difference. First operand 4491 states and 6060 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-21 02:03:50,913 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:03:52,957 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:03:55,409 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:03:57,194 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:03:58,707 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:04:01,049 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:04:04,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:04:04,348 INFO L93 Difference]: Finished difference Result 8882 states and 12002 transitions. [2021-11-21 02:04:04,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 02:04:04,349 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) Word has length 170 [2021-11-21 02:04:04,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:04:04,366 INFO L225 Difference]: With dead ends: 8882 [2021-11-21 02:04:04,366 INFO L226 Difference]: Without dead ends: 4501 [2021-11-21 02:04:04,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 02:04:04,377 INFO L933 BasicCegarLoop]: 2754 mSDtfsCounter, 0 mSDsluCounter, 9439 mSDsCounter, 0 mSdLazyCounter, 1584 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11013 SdHoareTripleChecker+Invalid, 1586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1584 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2021-11-21 02:04:04,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11013 Invalid, 1586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1584 Invalid, 2 Unknown, 0 Unchecked, 14.8s Time] [2021-11-21 02:04:04,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4501 states. [2021-11-21 02:04:04,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4501 to 4495. [2021-11-21 02:04:04,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4495 states, 2601 states have (on average 1.2183775470972702) internal successors, (3169), 2699 states have internal predecessors, (3169), 1442 states have call successors, (1442), 434 states have call predecessors, (1442), 435 states have return successors, (1455), 1422 states have call predecessors, (1455), 1440 states have call successors, (1455) [2021-11-21 02:04:04,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4495 states to 4495 states and 6066 transitions. [2021-11-21 02:04:04,628 INFO L78 Accepts]: Start accepts. Automaton has 4495 states and 6066 transitions. Word has length 170 [2021-11-21 02:04:04,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:04:04,628 INFO L470 AbstractCegarLoop]: Abstraction has 4495 states and 6066 transitions. [2021-11-21 02:04:04,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-21 02:04:04,629 INFO L276 IsEmpty]: Start isEmpty. Operand 4495 states and 6066 transitions. [2021-11-21 02:04:04,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-21 02:04:04,630 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:04:04,630 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:04:04,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-21 02:04:04,630 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:04:04,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:04:04,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1484362614, now seen corresponding path program 1 times [2021-11-21 02:04:04,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:04:04,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807067014] [2021-11-21 02:04:04,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:04:04,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:04:04,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:04:04,875 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2021-11-21 02:04:04,876 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:04:04,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807067014] [2021-11-21 02:04:04,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807067014] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 02:04:04,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81558650] [2021-11-21 02:04:04,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:04:04,877 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 02:04:04,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 02:04:04,882 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 02:04:04,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 02:04:06,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:04:06,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 3496 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 02:04:06,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 02:04:06,552 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2021-11-21 02:04:06,552 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 02:04:06,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81558650] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:04:06,553 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 02:04:06,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-11-21 02:04:06,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327979277] [2021-11-21 02:04:06,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:04:06,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 02:04:06,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:04:06,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 02:04:06,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-21 02:04:06,554 INFO L87 Difference]: Start difference. First operand 4495 states and 6066 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-21 02:04:09,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:04:09,228 INFO L93 Difference]: Finished difference Result 8874 states and 11989 transitions. [2021-11-21 02:04:09,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 02:04:09,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 173 [2021-11-21 02:04:09,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:04:09,251 INFO L225 Difference]: With dead ends: 8874 [2021-11-21 02:04:09,252 INFO L226 Difference]: Without dead ends: 4489 [2021-11-21 02:04:09,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-21 02:04:09,268 INFO L933 BasicCegarLoop]: 2749 mSDtfsCounter, 3061 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3061 SdHoareTripleChecker+Valid, 2749 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-21 02:04:09,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3061 Valid, 2749 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-21 02:04:09,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4489 states. [2021-11-21 02:04:09,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4489 to 4487. [2021-11-21 02:04:09,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4487 states, 2594 states have (on average 1.2174248265227448) internal successors, (3158), 2692 states have internal predecessors, (3158), 1442 states have call successors, (1442), 434 states have call predecessors, (1442), 435 states have return successors, (1455), 1421 states have call predecessors, (1455), 1440 states have call successors, (1455) [2021-11-21 02:04:09,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4487 states to 4487 states and 6055 transitions. [2021-11-21 02:04:09,554 INFO L78 Accepts]: Start accepts. Automaton has 4487 states and 6055 transitions. Word has length 173 [2021-11-21 02:04:09,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:04:09,554 INFO L470 AbstractCegarLoop]: Abstraction has 4487 states and 6055 transitions. [2021-11-21 02:04:09,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-21 02:04:09,555 INFO L276 IsEmpty]: Start isEmpty. Operand 4487 states and 6055 transitions. [2021-11-21 02:04:09,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-11-21 02:04:09,556 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:04:09,556 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:04:09,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-21 02:04:09,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-11-21 02:04:09,757 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:04:09,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:04:09,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1410086703, now seen corresponding path program 1 times [2021-11-21 02:04:09,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:04:09,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302375154] [2021-11-21 02:04:09,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:04:09,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:04:10,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:04:10,797 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2021-11-21 02:04:10,798 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:04:10,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302375154] [2021-11-21 02:04:10,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302375154] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:04:10,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:04:10,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-21 02:04:10,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202280245] [2021-11-21 02:04:10,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:04:10,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-21 02:04:10,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:04:10,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-21 02:04:10,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-21 02:04:10,800 INFO L87 Difference]: Start difference. First operand 4487 states and 6055 transitions. Second operand has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 5 states have call predecessors, (28), 4 states have call successors, (28) [2021-11-21 02:04:13,391 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:04:16,259 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:04:22,099 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:04:24,632 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:04:30,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:04:30,586 INFO L93 Difference]: Finished difference Result 8818 states and 11928 transitions. [2021-11-21 02:04:30,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-21 02:04:30,587 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 5 states have call predecessors, (28), 4 states have call successors, (28) Word has length 183 [2021-11-21 02:04:30,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:04:30,623 INFO L225 Difference]: With dead ends: 8818 [2021-11-21 02:04:30,623 INFO L226 Difference]: Without dead ends: 8816 [2021-11-21 02:04:30,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2021-11-21 02:04:30,628 INFO L933 BasicCegarLoop]: 3713 mSDtfsCounter, 3165 mSDsluCounter, 21329 mSDsCounter, 0 mSdLazyCounter, 4755 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3171 SdHoareTripleChecker+Valid, 22494 SdHoareTripleChecker+Invalid, 4771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 4755 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2021-11-21 02:04:30,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3171 Valid, 22494 Invalid, 4771 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 4755 Invalid, 3 Unknown, 0 Unchecked, 18.9s Time] [2021-11-21 02:04:30,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8816 states. [2021-11-21 02:04:31,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8816 to 8646. [2021-11-21 02:04:31,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8646 states, 5012 states have (on average 1.2206703910614525) internal successors, (6118), 5188 states have internal predecessors, (6118), 2793 states have call successors, (2793), 827 states have call predecessors, (2793), 825 states have return successors, (2820), 2748 states have call predecessors, (2820), 2791 states have call successors, (2820) [2021-11-21 02:04:31,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8646 states to 8646 states and 11731 transitions. [2021-11-21 02:04:31,162 INFO L78 Accepts]: Start accepts. Automaton has 8646 states and 11731 transitions. Word has length 183 [2021-11-21 02:04:31,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:04:31,163 INFO L470 AbstractCegarLoop]: Abstraction has 8646 states and 11731 transitions. [2021-11-21 02:04:31,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 4 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 5 states have call predecessors, (28), 4 states have call successors, (28) [2021-11-21 02:04:31,165 INFO L276 IsEmpty]: Start isEmpty. Operand 8646 states and 11731 transitions. [2021-11-21 02:04:31,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-21 02:04:31,168 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:04:31,168 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:04:31,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-21 02:04:31,168 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:04:31,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:04:31,169 INFO L85 PathProgramCache]: Analyzing trace with hash -657541602, now seen corresponding path program 1 times [2021-11-21 02:04:31,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:04:31,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500393115] [2021-11-21 02:04:31,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:04:31,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:04:31,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:04:31,469 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2021-11-21 02:04:31,470 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:04:31,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500393115] [2021-11-21 02:04:31,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500393115] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:04:31,470 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:04:31,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-21 02:04:31,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175613699] [2021-11-21 02:04:31,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:04:31,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 02:04:31,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:04:31,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 02:04:31,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-21 02:04:31,472 INFO L87 Difference]: Start difference. First operand 8646 states and 11731 transitions. Second operand has 6 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-21 02:04:33,833 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:04:36,950 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:04:42,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:04:42,693 INFO L93 Difference]: Finished difference Result 9040 states and 12171 transitions. [2021-11-21 02:04:42,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 02:04:42,693 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) Word has length 187 [2021-11-21 02:04:42,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:04:42,731 INFO L225 Difference]: With dead ends: 9040 [2021-11-21 02:04:42,731 INFO L226 Difference]: Without dead ends: 9038 [2021-11-21 02:04:42,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-21 02:04:42,739 INFO L933 BasicCegarLoop]: 2776 mSDtfsCounter, 3007 mSDsluCounter, 8227 mSDsCounter, 0 mSdLazyCounter, 3091 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3014 SdHoareTripleChecker+Valid, 9798 SdHoareTripleChecker+Invalid, 3094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3091 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2021-11-21 02:04:42,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3014 Valid, 9798 Invalid, 3094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3091 Invalid, 1 Unknown, 0 Unchecked, 10.6s Time] [2021-11-21 02:04:42,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9038 states. [2021-11-21 02:04:43,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9038 to 9038. [2021-11-21 02:04:43,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9038 states, 5237 states have (on average 1.2180637769715486) internal successors, (6379), 5412 states have internal predecessors, (6379), 2879 states have call successors, (2879), 909 states have call predecessors, (2879), 907 states have return successors, (2906), 2834 states have call predecessors, (2906), 2877 states have call successors, (2906) [2021-11-21 02:04:43,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9038 states to 9038 states and 12164 transitions. [2021-11-21 02:04:43,449 INFO L78 Accepts]: Start accepts. Automaton has 9038 states and 12164 transitions. Word has length 187 [2021-11-21 02:04:43,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:04:43,449 INFO L470 AbstractCegarLoop]: Abstraction has 9038 states and 12164 transitions. [2021-11-21 02:04:43,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-21 02:04:43,450 INFO L276 IsEmpty]: Start isEmpty. Operand 9038 states and 12164 transitions. [2021-11-21 02:04:43,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-11-21 02:04:43,451 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:04:43,452 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:04:43,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-21 02:04:43,452 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:04:43,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:04:43,452 INFO L85 PathProgramCache]: Analyzing trace with hash 679968506, now seen corresponding path program 1 times [2021-11-21 02:04:43,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:04:43,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465225405] [2021-11-21 02:04:43,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:04:43,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:04:43,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:04:43,695 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2021-11-21 02:04:43,696 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:04:43,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465225405] [2021-11-21 02:04:43,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465225405] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:04:43,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:04:43,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 02:04:43,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551352127] [2021-11-21 02:04:43,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:04:43,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 02:04:43,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:04:43,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 02:04:43,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 02:04:43,698 INFO L87 Difference]: Start difference. First operand 9038 states and 12164 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-21 02:04:45,991 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:04:47,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:04:47,517 INFO L93 Difference]: Finished difference Result 17464 states and 23597 transitions. [2021-11-21 02:04:47,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 02:04:47,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 190 [2021-11-21 02:04:47,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:04:47,548 INFO L225 Difference]: With dead ends: 17464 [2021-11-21 02:04:47,549 INFO L226 Difference]: Without dead ends: 9024 [2021-11-21 02:04:47,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 02:04:47,577 INFO L933 BasicCegarLoop]: 2741 mSDtfsCounter, 3068 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3068 SdHoareTripleChecker+Valid, 2741 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-21 02:04:47,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3068 Valid, 2741 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-11-21 02:04:47,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9024 states. [2021-11-21 02:04:48,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9024 to 9024. [2021-11-21 02:04:48,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9024 states, 5224 states have (on average 1.2163093415007658) internal successors, (6354), 5398 states have internal predecessors, (6354), 2879 states have call successors, (2879), 909 states have call predecessors, (2879), 907 states have return successors, (2906), 2834 states have call predecessors, (2906), 2877 states have call successors, (2906) [2021-11-21 02:04:48,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9024 states to 9024 states and 12139 transitions. [2021-11-21 02:04:48,286 INFO L78 Accepts]: Start accepts. Automaton has 9024 states and 12139 transitions. Word has length 190 [2021-11-21 02:04:48,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:04:48,286 INFO L470 AbstractCegarLoop]: Abstraction has 9024 states and 12139 transitions. [2021-11-21 02:04:48,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-21 02:04:48,286 INFO L276 IsEmpty]: Start isEmpty. Operand 9024 states and 12139 transitions. [2021-11-21 02:04:48,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-11-21 02:04:48,290 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:04:48,290 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:04:48,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-21 02:04:48,290 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:04:48,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:04:48,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1117706342, now seen corresponding path program 1 times [2021-11-21 02:04:48,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:04:48,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950982466] [2021-11-21 02:04:48,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:04:48,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:04:48,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:04:49,040 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2021-11-21 02:04:49,040 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:04:49,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950982466] [2021-11-21 02:04:49,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950982466] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:04:49,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:04:49,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-21 02:04:49,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127899663] [2021-11-21 02:04:49,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:04:49,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 02:04:49,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:04:49,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 02:04:49,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-21 02:04:49,043 INFO L87 Difference]: Start difference. First operand 9024 states and 12139 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-21 02:04:51,244 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:04:53,051 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:04:55,815 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:04:59,501 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:05:00,582 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:05:02,603 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:05:08,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:05:08,713 INFO L93 Difference]: Finished difference Result 9348 states and 12527 transitions. [2021-11-21 02:05:08,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 02:05:08,714 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) Word has length 237 [2021-11-21 02:05:08,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:05:08,739 INFO L225 Difference]: With dead ends: 9348 [2021-11-21 02:05:08,739 INFO L226 Difference]: Without dead ends: 9346 [2021-11-21 02:05:08,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-21 02:05:08,743 INFO L933 BasicCegarLoop]: 2821 mSDtfsCounter, 269 mSDsluCounter, 12574 mSDsCounter, 0 mSdLazyCounter, 2164 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 13822 SdHoareTripleChecker+Invalid, 2167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2164 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2021-11-21 02:05:08,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 13822 Invalid, 2167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2164 Invalid, 2 Unknown, 0 Unchecked, 19.1s Time] [2021-11-21 02:05:08,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9346 states. [2021-11-21 02:05:09,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9346 to 9201. [2021-11-21 02:05:09,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9201 states, 5322 states have (on average 1.2145809845922586) internal successors, (6464), 5501 states have internal predecessors, (6464), 2930 states have call successors, (2930), 936 states have call predecessors, (2930), 935 states have return successors, (2958), 2882 states have call predecessors, (2958), 2928 states have call successors, (2958) [2021-11-21 02:05:09,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9201 states to 9201 states and 12352 transitions. [2021-11-21 02:05:09,360 INFO L78 Accepts]: Start accepts. Automaton has 9201 states and 12352 transitions. Word has length 237 [2021-11-21 02:05:09,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:05:09,361 INFO L470 AbstractCegarLoop]: Abstraction has 9201 states and 12352 transitions. [2021-11-21 02:05:09,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-21 02:05:09,361 INFO L276 IsEmpty]: Start isEmpty. Operand 9201 states and 12352 transitions. [2021-11-21 02:05:09,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-11-21 02:05:09,365 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:05:09,366 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:05:09,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-21 02:05:09,366 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:05:09,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:05:09,366 INFO L85 PathProgramCache]: Analyzing trace with hash 275400797, now seen corresponding path program 1 times [2021-11-21 02:05:09,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:05:09,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105656981] [2021-11-21 02:05:09,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:05:09,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:05:09,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:05:09,639 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2021-11-21 02:05:09,640 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:05:09,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105656981] [2021-11-21 02:05:09,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105656981] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:05:09,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:05:09,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 02:05:09,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318128203] [2021-11-21 02:05:09,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:05:09,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 02:05:09,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:05:09,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 02:05:09,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 02:05:09,643 INFO L87 Difference]: Start difference. First operand 9201 states and 12352 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-21 02:05:13,550 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:05:15,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:05:15,688 INFO L93 Difference]: Finished difference Result 9201 states and 12352 transitions. [2021-11-21 02:05:15,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 02:05:15,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 242 [2021-11-21 02:05:15,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:05:15,711 INFO L225 Difference]: With dead ends: 9201 [2021-11-21 02:05:15,711 INFO L226 Difference]: Without dead ends: 9199 [2021-11-21 02:05:15,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 02:05:15,715 INFO L933 BasicCegarLoop]: 2739 mSDtfsCounter, 3053 mSDsluCounter, 3133 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3055 SdHoareTripleChecker+Valid, 5478 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-11-21 02:05:15,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3055 Valid, 5478 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2021-11-21 02:05:15,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9199 states. [2021-11-21 02:05:16,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9199 to 9199. [2021-11-21 02:05:16,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9199 states, 5321 states have (on average 1.2144333771847398) internal successors, (6462), 5499 states have internal predecessors, (6462), 2930 states have call successors, (2930), 936 states have call predecessors, (2930), 935 states have return successors, (2958), 2882 states have call predecessors, (2958), 2928 states have call successors, (2958) [2021-11-21 02:05:16,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9199 states to 9199 states and 12350 transitions. [2021-11-21 02:05:16,377 INFO L78 Accepts]: Start accepts. Automaton has 9199 states and 12350 transitions. Word has length 242 [2021-11-21 02:05:16,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:05:16,378 INFO L470 AbstractCegarLoop]: Abstraction has 9199 states and 12350 transitions. [2021-11-21 02:05:16,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-21 02:05:16,378 INFO L276 IsEmpty]: Start isEmpty. Operand 9199 states and 12350 transitions. [2021-11-21 02:05:16,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-11-21 02:05:16,382 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:05:16,382 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:05:16,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-21 02:05:16,382 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:05:16,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:05:16,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1687149175, now seen corresponding path program 1 times [2021-11-21 02:05:16,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:05:16,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794661449] [2021-11-21 02:05:16,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:05:16,383 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:05:16,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:05:17,079 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2021-11-21 02:05:17,080 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:05:17,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794661449] [2021-11-21 02:05:17,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794661449] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:05:17,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:05:17,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-21 02:05:17,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451744034] [2021-11-21 02:05:17,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:05:17,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 02:05:17,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:05:17,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 02:05:17,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-21 02:05:17,082 INFO L87 Difference]: Start difference. First operand 9199 states and 12350 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 4 states have call predecessors, (42), 3 states have call successors, (42) [2021-11-21 02:05:18,952 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:05:20,996 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:05:23,760 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:05:25,801 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:05:27,884 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:05:32,819 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:05:34,867 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:05:36,906 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:05:39,614 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:05:42,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:05:42,409 INFO L93 Difference]: Finished difference Result 9524 states and 12740 transitions. [2021-11-21 02:05:42,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-21 02:05:42,410 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 4 states have call predecessors, (42), 3 states have call successors, (42) Word has length 250 [2021-11-21 02:05:42,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:05:42,433 INFO L225 Difference]: With dead ends: 9524 [2021-11-21 02:05:42,433 INFO L226 Difference]: Without dead ends: 9522 [2021-11-21 02:05:42,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-11-21 02:05:42,438 INFO L933 BasicCegarLoop]: 2822 mSDtfsCounter, 311 mSDsluCounter, 16025 mSDsCounter, 0 mSdLazyCounter, 2627 mSolverCounterSat, 41 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 16836 SdHoareTripleChecker+Invalid, 2675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2627 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.6s IncrementalHoareTripleChecker+Time [2021-11-21 02:05:42,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [314 Valid, 16836 Invalid, 2675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2627 Invalid, 7 Unknown, 0 Unchecked, 24.6s Time] [2021-11-21 02:05:42,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9522 states. [2021-11-21 02:05:43,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9522 to 9201. [2021-11-21 02:05:43,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9201 states, 5323 states have (on average 1.2145406725530716) internal successors, (6465), 5500 states have internal predecessors, (6465), 2930 states have call successors, (2930), 936 states have call predecessors, (2930), 935 states have return successors, (2958), 2883 states have call predecessors, (2958), 2928 states have call successors, (2958) [2021-11-21 02:05:43,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9201 states to 9201 states and 12353 transitions. [2021-11-21 02:05:43,063 INFO L78 Accepts]: Start accepts. Automaton has 9201 states and 12353 transitions. Word has length 250 [2021-11-21 02:05:43,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:05:43,064 INFO L470 AbstractCegarLoop]: Abstraction has 9201 states and 12353 transitions. [2021-11-21 02:05:43,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 4 states have call predecessors, (42), 3 states have call successors, (42) [2021-11-21 02:05:43,064 INFO L276 IsEmpty]: Start isEmpty. Operand 9201 states and 12353 transitions. [2021-11-21 02:05:43,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2021-11-21 02:05:43,068 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:05:43,068 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:05:43,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-21 02:05:43,068 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting igbvf_configureErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:05:43,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:05:43,069 INFO L85 PathProgramCache]: Analyzing trace with hash 858020495, now seen corresponding path program 1 times [2021-11-21 02:05:43,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:05:43,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137258857] [2021-11-21 02:05:43,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:05:43,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:05:43,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:05:43,913 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2021-11-21 02:05:43,913 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:05:43,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137258857] [2021-11-21 02:05:43,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137258857] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:05:43,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:05:43,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 02:05:43,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124562326] [2021-11-21 02:05:43,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:05:43,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 02:05:43,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:05:43,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 02:05:43,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 02:05:43,917 INFO L87 Difference]: Start difference. First operand 9201 states and 12353 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2021-11-21 02:05:46,132 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:05:47,245 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:05:48,989 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:05:50,106 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:05:54,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:05:54,494 INFO L93 Difference]: Finished difference Result 9549 states and 12879 transitions. [2021-11-21 02:05:54,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 02:05:54,495 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 274 [2021-11-21 02:05:54,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:05:54,521 INFO L225 Difference]: With dead ends: 9549 [2021-11-21 02:05:54,521 INFO L226 Difference]: Without dead ends: 9547 [2021-11-21 02:05:54,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 02:05:54,526 INFO L933 BasicCegarLoop]: 2815 mSDtfsCounter, 67 mSDsluCounter, 9513 mSDsCounter, 0 mSdLazyCounter, 1593 mSolverCounterSat, 64 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 11147 SdHoareTripleChecker+Invalid, 1658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1593 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2021-11-21 02:05:54,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 11147 Invalid, 1658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1593 Invalid, 1 Unknown, 0 Unchecked, 10.0s Time] [2021-11-21 02:05:54,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9547 states. [2021-11-21 02:05:55,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9547 to 9199. [2021-11-21 02:05:55,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9199 states, 5322 states have (on average 1.2134535888763622) internal successors, (6458), 5498 states have internal predecessors, (6458), 2930 states have call successors, (2930), 936 states have call predecessors, (2930), 935 states have return successors, (2958), 2883 states have call predecessors, (2958), 2928 states have call successors, (2958) [2021-11-21 02:05:55,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9199 states to 9199 states and 12346 transitions. [2021-11-21 02:05:55,162 INFO L78 Accepts]: Start accepts. Automaton has 9199 states and 12346 transitions. Word has length 274 [2021-11-21 02:05:55,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:05:55,163 INFO L470 AbstractCegarLoop]: Abstraction has 9199 states and 12346 transitions. [2021-11-21 02:05:55,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2021-11-21 02:05:55,163 INFO L276 IsEmpty]: Start isEmpty. Operand 9199 states and 12346 transitions. [2021-11-21 02:05:55,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2021-11-21 02:05:55,170 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:05:55,170 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:05:55,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-21 02:05:55,170 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:05:55,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:05:55,171 INFO L85 PathProgramCache]: Analyzing trace with hash -839737235, now seen corresponding path program 1 times [2021-11-21 02:05:55,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:05:55,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462718701] [2021-11-21 02:05:55,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:05:55,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:05:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:05:55,454 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2021-11-21 02:05:55,455 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:05:55,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462718701] [2021-11-21 02:05:55,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462718701] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:05:55,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:05:55,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 02:05:55,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391192994] [2021-11-21 02:05:55,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:05:55,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 02:05:55,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:05:55,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 02:05:55,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 02:05:55,458 INFO L87 Difference]: Start difference. First operand 9199 states and 12346 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2021-11-21 02:05:56,840 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:06:00,254 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:06:02,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:06:02,889 INFO L93 Difference]: Finished difference Result 9199 states and 12346 transitions. [2021-11-21 02:06:02,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 02:06:02,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 267 [2021-11-21 02:06:02,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:06:02,923 INFO L225 Difference]: With dead ends: 9199 [2021-11-21 02:06:02,923 INFO L226 Difference]: Without dead ends: 9197 [2021-11-21 02:06:02,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 02:06:02,929 INFO L933 BasicCegarLoop]: 2735 mSDtfsCounter, 3044 mSDsluCounter, 3129 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3046 SdHoareTripleChecker+Valid, 5470 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-21 02:06:02,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3046 Valid, 5470 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 790 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2021-11-21 02:06:02,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9197 states. [2021-11-21 02:06:03,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9197 to 9197. [2021-11-21 02:06:03,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9197 states, 5321 states have (on average 1.2133057695921818) internal successors, (6456), 5496 states have internal predecessors, (6456), 2930 states have call successors, (2930), 936 states have call predecessors, (2930), 935 states have return successors, (2958), 2883 states have call predecessors, (2958), 2928 states have call successors, (2958) [2021-11-21 02:06:03,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9197 states to 9197 states and 12344 transitions. [2021-11-21 02:06:03,739 INFO L78 Accepts]: Start accepts. Automaton has 9197 states and 12344 transitions. Word has length 267 [2021-11-21 02:06:03,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:06:03,740 INFO L470 AbstractCegarLoop]: Abstraction has 9197 states and 12344 transitions. [2021-11-21 02:06:03,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2021-11-21 02:06:03,740 INFO L276 IsEmpty]: Start isEmpty. Operand 9197 states and 12344 transitions. [2021-11-21 02:06:03,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2021-11-21 02:06:03,747 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:06:03,747 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:06:03,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-21 02:06:03,747 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:06:03,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:06:03,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1223162463, now seen corresponding path program 1 times [2021-11-21 02:06:03,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:06:03,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856463340] [2021-11-21 02:06:03,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:06:03,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:06:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:06:04,020 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2021-11-21 02:06:04,020 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:06:04,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856463340] [2021-11-21 02:06:04,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856463340] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:06:04,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:06:04,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 02:06:04,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527507754] [2021-11-21 02:06:04,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:06:04,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 02:06:04,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:06:04,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 02:06:04,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 02:06:04,024 INFO L87 Difference]: Start difference. First operand 9197 states and 12344 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-21 02:06:07,031 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:06:10,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:06:10,864 INFO L93 Difference]: Finished difference Result 9197 states and 12344 transitions. [2021-11-21 02:06:10,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 02:06:10,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 274 [2021-11-21 02:06:10,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:06:10,890 INFO L225 Difference]: With dead ends: 9197 [2021-11-21 02:06:10,891 INFO L226 Difference]: Without dead ends: 9195 [2021-11-21 02:06:10,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 02:06:10,894 INFO L933 BasicCegarLoop]: 2733 mSDtfsCounter, 3039 mSDsluCounter, 3127 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3041 SdHoareTripleChecker+Valid, 5466 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-11-21 02:06:10,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3041 Valid, 5466 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 790 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2021-11-21 02:06:10,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9195 states. [2021-11-21 02:06:11,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9195 to 9195. [2021-11-21 02:06:11,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9195 states, 5320 states have (on average 1.2131578947368422) internal successors, (6454), 5494 states have internal predecessors, (6454), 2930 states have call successors, (2930), 936 states have call predecessors, (2930), 935 states have return successors, (2958), 2883 states have call predecessors, (2958), 2928 states have call successors, (2958) [2021-11-21 02:06:11,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9195 states to 9195 states and 12342 transitions. [2021-11-21 02:06:11,517 INFO L78 Accepts]: Start accepts. Automaton has 9195 states and 12342 transitions. Word has length 274 [2021-11-21 02:06:11,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:06:11,518 INFO L470 AbstractCegarLoop]: Abstraction has 9195 states and 12342 transitions. [2021-11-21 02:06:11,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-21 02:06:11,518 INFO L276 IsEmpty]: Start isEmpty. Operand 9195 states and 12342 transitions. [2021-11-21 02:06:11,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2021-11-21 02:06:11,522 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:06:11,523 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:06:11,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-21 02:06:11,523 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:06:11,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:06:11,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1880512877, now seen corresponding path program 1 times [2021-11-21 02:06:11,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:06:11,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950517215] [2021-11-21 02:06:11,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:06:11,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:06:11,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:06:12,354 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2021-11-21 02:06:12,354 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:06:12,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950517215] [2021-11-21 02:06:12,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950517215] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:06:12,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:06:12,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-21 02:06:12,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343075125] [2021-11-21 02:06:12,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:06:12,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-21 02:06:12,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:06:12,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-21 02:06:12,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-21 02:06:12,356 INFO L87 Difference]: Start difference. First operand 9195 states and 12342 transitions. Second operand has 11 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 4 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (47), 5 states have call predecessors, (47), 4 states have call successors, (47) [2021-11-21 02:06:15,106 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:06:16,794 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:06:18,811 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:06:20,423 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:06:30,059 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:06:46,494 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:06:48,052 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:06:51,059 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:06:53,079 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:06:54,924 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:07:15,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:07:15,535 INFO L93 Difference]: Finished difference Result 17535 states and 23550 transitions. [2021-11-21 02:07:15,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-21 02:07:15,536 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 4 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (47), 5 states have call predecessors, (47), 4 states have call successors, (47) Word has length 277 [2021-11-21 02:07:15,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:07:15,579 INFO L225 Difference]: With dead ends: 17535 [2021-11-21 02:07:15,579 INFO L226 Difference]: Without dead ends: 17533 [2021-11-21 02:07:15,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=474, Unknown=0, NotChecked=0, Total=600 [2021-11-21 02:07:15,585 INFO L933 BasicCegarLoop]: 4282 mSDtfsCounter, 7251 mSDsluCounter, 14774 mSDsCounter, 0 mSdLazyCounter, 32333 mSolverCounterSat, 5446 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8275 SdHoareTripleChecker+Valid, 17033 SdHoareTripleChecker+Invalid, 37782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5446 IncrementalHoareTripleChecker+Valid, 32333 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.1s IncrementalHoareTripleChecker+Time [2021-11-21 02:07:15,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8275 Valid, 17033 Invalid, 37782 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5446 Valid, 32333 Invalid, 3 Unknown, 0 Unchecked, 61.1s Time] [2021-11-21 02:07:15,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17533 states. [2021-11-21 02:07:16,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17533 to 17201. [2021-11-21 02:07:16,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17201 states, 9974 states have (on average 1.2166633246440746) internal successors, (12135), 10289 states have internal predecessors, (12135), 5481 states have call successors, (5481), 1732 states have call predecessors, (5481), 1736 states have return successors, (5533), 5399 states have call predecessors, (5533), 5479 states have call successors, (5533) [2021-11-21 02:07:16,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17201 states to 17201 states and 23149 transitions. [2021-11-21 02:07:16,891 INFO L78 Accepts]: Start accepts. Automaton has 17201 states and 23149 transitions. Word has length 277 [2021-11-21 02:07:16,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:07:16,892 INFO L470 AbstractCegarLoop]: Abstraction has 17201 states and 23149 transitions. [2021-11-21 02:07:16,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.7) internal successors, (97), 10 states have internal predecessors, (97), 4 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (47), 5 states have call predecessors, (47), 4 states have call successors, (47) [2021-11-21 02:07:16,892 INFO L276 IsEmpty]: Start isEmpty. Operand 17201 states and 23149 transitions. [2021-11-21 02:07:16,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2021-11-21 02:07:16,897 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:07:16,897 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:07:16,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-11-21 02:07:16,897 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:07:16,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:07:16,898 INFO L85 PathProgramCache]: Analyzing trace with hash -318865367, now seen corresponding path program 1 times [2021-11-21 02:07:16,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:07:16,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740691286] [2021-11-21 02:07:16,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:07:16,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:07:16,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:07:17,151 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2021-11-21 02:07:17,151 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:07:17,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740691286] [2021-11-21 02:07:17,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740691286] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:07:17,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:07:17,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 02:07:17,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273963606] [2021-11-21 02:07:17,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:07:17,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 02:07:17,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:07:17,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 02:07:17,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 02:07:17,154 INFO L87 Difference]: Start difference. First operand 17201 states and 23149 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-21 02:07:18,670 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:07:20,256 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:07:21,548 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:07:24,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:07:24,609 INFO L93 Difference]: Finished difference Result 17201 states and 23149 transitions. [2021-11-21 02:07:24,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 02:07:24,609 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 284 [2021-11-21 02:07:24,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:07:24,668 INFO L225 Difference]: With dead ends: 17201 [2021-11-21 02:07:24,668 INFO L226 Difference]: Without dead ends: 17199 [2021-11-21 02:07:24,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 02:07:24,674 INFO L933 BasicCegarLoop]: 2731 mSDtfsCounter, 3037 mSDsluCounter, 3125 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3039 SdHoareTripleChecker+Valid, 5462 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-11-21 02:07:24,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3039 Valid, 5462 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2021-11-21 02:07:24,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17199 states. [2021-11-21 02:07:25,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17199 to 17199. [2021-11-21 02:07:26,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17199 states, 9973 states have (on average 1.2165847789030382) internal successors, (12133), 10287 states have internal predecessors, (12133), 5481 states have call successors, (5481), 1732 states have call predecessors, (5481), 1736 states have return successors, (5533), 5399 states have call predecessors, (5533), 5479 states have call successors, (5533) [2021-11-21 02:07:26,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17199 states to 17199 states and 23147 transitions. [2021-11-21 02:07:26,060 INFO L78 Accepts]: Start accepts. Automaton has 17199 states and 23147 transitions. Word has length 284 [2021-11-21 02:07:26,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:07:26,060 INFO L470 AbstractCegarLoop]: Abstraction has 17199 states and 23147 transitions. [2021-11-21 02:07:26,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-21 02:07:26,060 INFO L276 IsEmpty]: Start isEmpty. Operand 17199 states and 23147 transitions. [2021-11-21 02:07:26,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2021-11-21 02:07:26,065 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:07:26,065 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:07:26,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-11-21 02:07:26,066 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:07:26,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:07:26,066 INFO L85 PathProgramCache]: Analyzing trace with hash 414172697, now seen corresponding path program 1 times [2021-11-21 02:07:26,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:07:26,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509529458] [2021-11-21 02:07:26,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:07:26,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:07:26,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:07:26,291 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2021-11-21 02:07:26,291 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:07:26,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509529458] [2021-11-21 02:07:26,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509529458] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:07:26,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:07:26,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 02:07:26,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809735849] [2021-11-21 02:07:26,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:07:26,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 02:07:26,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:07:26,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 02:07:26,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 02:07:26,294 INFO L87 Difference]: Start difference. First operand 17199 states and 23147 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2021-11-21 02:07:29,134 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:07:33,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:07:33,684 INFO L93 Difference]: Finished difference Result 17199 states and 23147 transitions. [2021-11-21 02:07:33,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 02:07:33,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 289 [2021-11-21 02:07:33,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:07:33,728 INFO L225 Difference]: With dead ends: 17199 [2021-11-21 02:07:33,728 INFO L226 Difference]: Without dead ends: 17197 [2021-11-21 02:07:33,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 02:07:33,735 INFO L933 BasicCegarLoop]: 2729 mSDtfsCounter, 3034 mSDsluCounter, 3123 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3036 SdHoareTripleChecker+Valid, 5458 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-11-21 02:07:33,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3036 Valid, 5458 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 790 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2021-11-21 02:07:33,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17197 states. [2021-11-21 02:07:34,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17197 to 17197. [2021-11-21 02:07:34,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17197 states, 9972 states have (on average 1.2165062174087444) internal successors, (12131), 10285 states have internal predecessors, (12131), 5481 states have call successors, (5481), 1732 states have call predecessors, (5481), 1736 states have return successors, (5533), 5399 states have call predecessors, (5533), 5479 states have call successors, (5533) [2021-11-21 02:07:35,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17197 states to 17197 states and 23145 transitions. [2021-11-21 02:07:35,014 INFO L78 Accepts]: Start accepts. Automaton has 17197 states and 23145 transitions. Word has length 289 [2021-11-21 02:07:35,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:07:35,014 INFO L470 AbstractCegarLoop]: Abstraction has 17197 states and 23145 transitions. [2021-11-21 02:07:35,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2021-11-21 02:07:35,014 INFO L276 IsEmpty]: Start isEmpty. Operand 17197 states and 23145 transitions. [2021-11-21 02:07:35,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2021-11-21 02:07:35,020 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:07:35,020 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:07:35,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-11-21 02:07:35,021 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:07:35,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:07:35,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1003400171, now seen corresponding path program 1 times [2021-11-21 02:07:35,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:07:35,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915674111] [2021-11-21 02:07:35,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:07:35,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:07:35,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:07:35,441 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2021-11-21 02:07:35,441 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:07:35,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915674111] [2021-11-21 02:07:35,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915674111] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:07:35,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:07:35,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 02:07:35,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870494979] [2021-11-21 02:07:35,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:07:35,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 02:07:35,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:07:35,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 02:07:35,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 02:07:35,444 INFO L87 Difference]: Start difference. First operand 17197 states and 23145 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-21 02:07:37,767 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:07:42,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:07:42,765 INFO L93 Difference]: Finished difference Result 17197 states and 23145 transitions. [2021-11-21 02:07:42,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 02:07:42,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 304 [2021-11-21 02:07:42,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:07:42,812 INFO L225 Difference]: With dead ends: 17197 [2021-11-21 02:07:42,812 INFO L226 Difference]: Without dead ends: 17195 [2021-11-21 02:07:42,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 02:07:42,819 INFO L933 BasicCegarLoop]: 2727 mSDtfsCounter, 3029 mSDsluCounter, 3121 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3031 SdHoareTripleChecker+Valid, 5454 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2021-11-21 02:07:42,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3031 Valid, 5454 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2021-11-21 02:07:42,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17195 states. [2021-11-21 02:07:44,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17195 to 17195. [2021-11-21 02:07:44,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17195 states, 9971 states have (on average 1.2164276401564538) internal successors, (12129), 10283 states have internal predecessors, (12129), 5481 states have call successors, (5481), 1732 states have call predecessors, (5481), 1736 states have return successors, (5533), 5399 states have call predecessors, (5533), 5479 states have call successors, (5533) [2021-11-21 02:07:44,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17195 states to 17195 states and 23143 transitions. [2021-11-21 02:07:44,122 INFO L78 Accepts]: Start accepts. Automaton has 17195 states and 23143 transitions. Word has length 304 [2021-11-21 02:07:44,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:07:44,123 INFO L470 AbstractCegarLoop]: Abstraction has 17195 states and 23143 transitions. [2021-11-21 02:07:44,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-21 02:07:44,207 INFO L276 IsEmpty]: Start isEmpty. Operand 17195 states and 23143 transitions. [2021-11-21 02:07:44,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2021-11-21 02:07:44,213 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:07:44,213 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:07:44,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-11-21 02:07:44,214 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:07:44,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:07:44,214 INFO L85 PathProgramCache]: Analyzing trace with hash -813044894, now seen corresponding path program 1 times [2021-11-21 02:07:44,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:07:44,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420867457] [2021-11-21 02:07:44,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:07:44,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:07:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:07:44,567 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2021-11-21 02:07:44,567 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:07:44,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420867457] [2021-11-21 02:07:44,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420867457] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:07:44,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:07:44,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-21 02:07:44,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573463473] [2021-11-21 02:07:44,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:07:44,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 02:07:44,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:07:44,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 02:07:44,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-21 02:07:44,569 INFO L87 Difference]: Start difference. First operand 17195 states and 23143 transitions. Second operand has 6 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (49), 3 states have call predecessors, (49), 2 states have call successors, (49) [2021-11-21 02:07:46,803 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:07:56,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:07:56,948 INFO L93 Difference]: Finished difference Result 32932 states and 44412 transitions. [2021-11-21 02:07:56,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 02:07:56,949 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (49), 3 states have call predecessors, (49), 2 states have call successors, (49) Word has length 338 [2021-11-21 02:07:56,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:07:57,009 INFO L225 Difference]: With dead ends: 32932 [2021-11-21 02:07:57,009 INFO L226 Difference]: Without dead ends: 17177 [2021-11-21 02:07:57,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-21 02:07:57,049 INFO L933 BasicCegarLoop]: 2751 mSDtfsCounter, 2951 mSDsluCounter, 8157 mSDsCounter, 0 mSdLazyCounter, 3097 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2956 SdHoareTripleChecker+Valid, 9699 SdHoareTripleChecker+Invalid, 3100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3097 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2021-11-21 02:07:57,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2956 Valid, 9699 Invalid, 3100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3097 Invalid, 1 Unknown, 0 Unchecked, 10.9s Time] [2021-11-21 02:07:57,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17177 states. [2021-11-21 02:07:58,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17177 to 17177. [2021-11-21 02:07:58,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17177 states, 9954 states have (on average 1.2151898734177216) internal successors, (12096), 10265 states have internal predecessors, (12096), 5481 states have call successors, (5481), 1732 states have call predecessors, (5481), 1736 states have return successors, (5533), 5399 states have call predecessors, (5533), 5479 states have call successors, (5533) [2021-11-21 02:07:58,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17177 states to 17177 states and 23110 transitions. [2021-11-21 02:07:58,593 INFO L78 Accepts]: Start accepts. Automaton has 17177 states and 23110 transitions. Word has length 338 [2021-11-21 02:07:58,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:07:58,594 INFO L470 AbstractCegarLoop]: Abstraction has 17177 states and 23110 transitions. [2021-11-21 02:07:58,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (49), 3 states have call predecessors, (49), 2 states have call successors, (49) [2021-11-21 02:07:58,594 INFO L276 IsEmpty]: Start isEmpty. Operand 17177 states and 23110 transitions. [2021-11-21 02:07:58,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2021-11-21 02:07:58,601 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:07:58,601 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:07:58,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-11-21 02:07:58,601 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ldv_check_alloc_nonatomicErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:07:58,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:07:58,602 INFO L85 PathProgramCache]: Analyzing trace with hash 565783332, now seen corresponding path program 1 times [2021-11-21 02:07:58,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:07:58,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649338152] [2021-11-21 02:07:58,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:07:58,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:07:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:07:58,914 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2021-11-21 02:07:58,914 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:07:58,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649338152] [2021-11-21 02:07:58,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649338152] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 02:07:58,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 02:07:58,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 02:07:58,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573213082] [2021-11-21 02:07:58,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 02:07:58,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 02:07:58,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 02:07:58,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 02:07:58,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 02:07:58,915 INFO L87 Difference]: Start difference. First operand 17177 states and 23110 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2021-11-21 02:08:01,034 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:08:03,426 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 02:08:06,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 02:08:06,624 INFO L93 Difference]: Finished difference Result 17177 states and 23110 transitions. [2021-11-21 02:08:06,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 02:08:06,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 339 [2021-11-21 02:08:06,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 02:08:06,673 INFO L225 Difference]: With dead ends: 17177 [2021-11-21 02:08:06,673 INFO L226 Difference]: Without dead ends: 17175 [2021-11-21 02:08:06,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 02:08:06,681 INFO L933 BasicCegarLoop]: 2719 mSDtfsCounter, 3016 mSDsluCounter, 3112 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3019 SdHoareTripleChecker+Valid, 5438 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-21 02:08:06,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3019 Valid, 5438 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 791 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2021-11-21 02:08:06,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17175 states. [2021-11-21 02:08:08,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17175 to 17175. [2021-11-21 02:08:08,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17175 states, 9953 states have (on average 1.2144077162664524) internal successors, (12087), 10263 states have internal predecessors, (12087), 5481 states have call successors, (5481), 1732 states have call predecessors, (5481), 1736 states have return successors, (5533), 5399 states have call predecessors, (5533), 5479 states have call successors, (5533) [2021-11-21 02:08:08,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17175 states to 17175 states and 23101 transitions. [2021-11-21 02:08:08,450 INFO L78 Accepts]: Start accepts. Automaton has 17175 states and 23101 transitions. Word has length 339 [2021-11-21 02:08:08,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 02:08:08,450 INFO L470 AbstractCegarLoop]: Abstraction has 17175 states and 23101 transitions. [2021-11-21 02:08:08,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2021-11-21 02:08:08,451 INFO L276 IsEmpty]: Start isEmpty. Operand 17175 states and 23101 transitions. [2021-11-21 02:08:08,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2021-11-21 02:08:08,456 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 02:08:08,457 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 10, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 02:08:08,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-11-21 02:08:08,457 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 02:08:08,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 02:08:08,458 INFO L85 PathProgramCache]: Analyzing trace with hash 2005516987, now seen corresponding path program 1 times [2021-11-21 02:08:08,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 02:08:08,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377718949] [2021-11-21 02:08:08,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:08:08,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 02:08:09,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:08:09,749 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2021-11-21 02:08:09,749 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 02:08:09,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377718949] [2021-11-21 02:08:09,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377718949] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 02:08:09,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971560078] [2021-11-21 02:08:09,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 02:08:09,750 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 02:08:09,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 02:08:09,752 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 02:08:09,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daff2ce8-ae52-4b39-9e69-aef17eb6a305/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-21 02:08:11,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 02:08:11,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 4361 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-21 02:08:11,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 02:08:12,566 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 204 proven. 2 refuted. 0 times theorem prover too weak. 430 trivial. 0 not checked. [2021-11-21 02:08:12,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 02:08:13,773 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 4 proven. 46 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2021-11-21 02:08:13,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971560078] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 02:08:13,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1897062128] [2021-11-21 02:08:13,796 INFO L159 IcfgInterpreter]: Started Sifa with 144 locations of interest [2021-11-21 02:08:13,797 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 02:08:13,804 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 02:08:13,809 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 02:08:13,810 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 02:08:25,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-21 02:08:35,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-21 02:08:37,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-21 02:08:50,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-21 02:09:16,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-21 02:09:25,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-21 02:09:27,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16