./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--video--fbdev--udlfb.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS --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 81dbe8069ce4dfce1c2f5ecd6b7071863ebf3cc1894dcf2fe187946b9d9f58fb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:51:40,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:51:40,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:51:40,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:51:40,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:51:40,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:51:40,255 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:51:40,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:51:40,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:51:40,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:51:40,260 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:51:40,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:51:40,261 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:51:40,262 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:51:40,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:51:40,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:51:40,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:51:40,266 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:51:40,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:51:40,270 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:51:40,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:51:40,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:51:40,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:51:40,275 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:51:40,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:51:40,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:51:40,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:51:40,280 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:51:40,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:51:40,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:51:40,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:51:40,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:51:40,284 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:51:40,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:51:40,286 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:51:40,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:51:40,287 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:51:40,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:51:40,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:51:40,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:51:40,289 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:51:40,297 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:51:40,325 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:51:40,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:51:40,332 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:51:40,332 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:51:40,333 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:51:40,333 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:51:40,333 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:51:40,334 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:51:40,334 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:51:40,334 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:51:40,335 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:51:40,335 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:51:40,336 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:51:40,336 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:51:40,336 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:51:40,336 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:51:40,337 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:51:40,337 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:51:40,338 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:51:40,338 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:51:40,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:51:40,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:51:40,339 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:51:40,340 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:51:40,340 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:51:40,341 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:51:40,341 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:51:40,341 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:51:40,341 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:51:40,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:51:40,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:51:40,342 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:51:40,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:51:40,343 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:51:40,343 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:51:40,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:51:40,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:51:40,344 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:51:40,344 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81dbe8069ce4dfce1c2f5ecd6b7071863ebf3cc1894dcf2fe187946b9d9f58fb [2022-11-19 07:51:40,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:51:40,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:51:40,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:51:40,671 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:51:40,671 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:51:40,673 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i [2022-11-19 07:51:40,749 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/data/bd7623451/dfb98156a3c7414cab97a5f615f7fd23/FLAGc1bf87a1d [2022-11-19 07:51:41,613 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:51:41,614 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i [2022-11-19 07:51:41,665 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/data/bd7623451/dfb98156a3c7414cab97a5f615f7fd23/FLAGc1bf87a1d [2022-11-19 07:51:41,754 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/data/bd7623451/dfb98156a3c7414cab97a5f615f7fd23 [2022-11-19 07:51:41,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:51:41,759 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:51:41,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:51:41,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:51:41,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:51:41,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:51:41" (1/1) ... [2022-11-19 07:51:41,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@578af575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:41, skipping insertion in model container [2022-11-19 07:51:41,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:51:41" (1/1) ... [2022-11-19 07:51:41,777 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:51:41,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:51:45,788 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375016,375029] [2022-11-19 07:51:45,792 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375161,375174] [2022-11-19 07:51:45,794 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375307,375320] [2022-11-19 07:51:45,796 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375472,375485] [2022-11-19 07:51:45,797 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375630,375643] [2022-11-19 07:51:45,798 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375788,375801] [2022-11-19 07:51:45,798 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375946,375959] [2022-11-19 07:51:45,799 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376106,376119] [2022-11-19 07:51:45,800 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376265,376278] [2022-11-19 07:51:45,800 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376404,376417] [2022-11-19 07:51:45,801 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376546,376559] [2022-11-19 07:51:45,801 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376695,376708] [2022-11-19 07:51:45,802 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376834,376847] [2022-11-19 07:51:45,802 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376989,377002] [2022-11-19 07:51:45,803 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377149,377162] [2022-11-19 07:51:45,804 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377300,377313] [2022-11-19 07:51:45,804 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377451,377464] [2022-11-19 07:51:45,805 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377603,377616] [2022-11-19 07:51:45,805 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377752,377765] [2022-11-19 07:51:45,806 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377900,377913] [2022-11-19 07:51:45,807 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378057,378070] [2022-11-19 07:51:45,807 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378206,378219] [2022-11-19 07:51:45,808 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378362,378375] [2022-11-19 07:51:45,809 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378515,378528] [2022-11-19 07:51:45,810 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378661,378674] [2022-11-19 07:51:45,811 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378804,378817] [2022-11-19 07:51:45,811 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378956,378969] [2022-11-19 07:51:45,813 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379102,379115] [2022-11-19 07:51:45,814 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379247,379260] [2022-11-19 07:51:45,815 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379401,379414] [2022-11-19 07:51:45,816 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379552,379565] [2022-11-19 07:51:45,817 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379707,379720] [2022-11-19 07:51:45,817 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379859,379872] [2022-11-19 07:51:45,819 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380014,380027] [2022-11-19 07:51:45,819 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380178,380191] [2022-11-19 07:51:45,820 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380334,380347] [2022-11-19 07:51:45,821 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380498,380511] [2022-11-19 07:51:45,821 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380640,380653] [2022-11-19 07:51:45,822 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380798,380811] [2022-11-19 07:51:45,822 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380965,380978] [2022-11-19 07:51:45,823 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381124,381137] [2022-11-19 07:51:45,824 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381283,381296] [2022-11-19 07:51:45,824 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381432,381445] [2022-11-19 07:51:45,825 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381579,381592] [2022-11-19 07:51:45,825 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381718,381731] [2022-11-19 07:51:45,826 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381881,381894] [2022-11-19 07:51:45,826 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382047,382060] [2022-11-19 07:51:45,828 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382211,382224] [2022-11-19 07:51:45,829 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382376,382389] [2022-11-19 07:51:45,829 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382541,382554] [2022-11-19 07:51:45,830 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382707,382720] [2022-11-19 07:51:45,830 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382872,382885] [2022-11-19 07:51:45,831 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383039,383052] [2022-11-19 07:51:45,832 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383199,383212] [2022-11-19 07:51:45,832 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383361,383374] [2022-11-19 07:51:45,833 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383520,383533] [2022-11-19 07:51:45,834 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383666,383679] [2022-11-19 07:51:45,834 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383809,383822] [2022-11-19 07:51:45,835 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383953,383966] [2022-11-19 07:51:45,836 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384096,384109] [2022-11-19 07:51:45,837 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384240,384253] [2022-11-19 07:51:45,838 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384381,384394] [2022-11-19 07:51:45,838 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384519,384532] [2022-11-19 07:51:45,839 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384677,384690] [2022-11-19 07:51:45,840 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384836,384849] [2022-11-19 07:51:45,840 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384992,385005] [2022-11-19 07:51:45,842 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385141,385154] [2022-11-19 07:51:45,843 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385293,385306] [2022-11-19 07:51:45,844 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385444,385457] [2022-11-19 07:51:45,844 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385593,385606] [2022-11-19 07:51:45,845 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385745,385758] [2022-11-19 07:51:45,845 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385893,385906] [2022-11-19 07:51:45,846 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386046,386059] [2022-11-19 07:51:45,846 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386197,386210] [2022-11-19 07:51:45,847 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386347,386360] [2022-11-19 07:51:45,847 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386494,386507] [2022-11-19 07:51:45,848 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386645,386658] [2022-11-19 07:51:45,848 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386796,386809] [2022-11-19 07:51:45,849 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386944,386957] [2022-11-19 07:51:45,850 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387110,387123] [2022-11-19 07:51:45,851 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387279,387292] [2022-11-19 07:51:45,852 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387446,387459] [2022-11-19 07:51:45,853 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387614,387627] [2022-11-19 07:51:45,853 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387764,387777] [2022-11-19 07:51:45,855 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387911,387924] [2022-11-19 07:51:45,856 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388072,388085] [2022-11-19 07:51:45,857 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388242,388255] [2022-11-19 07:51:45,857 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388404,388417] [2022-11-19 07:51:45,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:51:45,916 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:51:46,286 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375016,375029] [2022-11-19 07:51:46,286 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375161,375174] [2022-11-19 07:51:46,287 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375307,375320] [2022-11-19 07:51:46,288 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375472,375485] [2022-11-19 07:51:46,288 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375630,375643] [2022-11-19 07:51:46,289 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375788,375801] [2022-11-19 07:51:46,289 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375946,375959] [2022-11-19 07:51:46,289 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376106,376119] [2022-11-19 07:51:46,290 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376265,376278] [2022-11-19 07:51:46,291 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376404,376417] [2022-11-19 07:51:46,292 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376546,376559] [2022-11-19 07:51:46,292 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376695,376708] [2022-11-19 07:51:46,293 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376834,376847] [2022-11-19 07:51:46,293 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376989,377002] [2022-11-19 07:51:46,293 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377149,377162] [2022-11-19 07:51:46,294 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377300,377313] [2022-11-19 07:51:46,294 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377451,377464] [2022-11-19 07:51:46,294 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377603,377616] [2022-11-19 07:51:46,295 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377752,377765] [2022-11-19 07:51:46,295 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377900,377913] [2022-11-19 07:51:46,295 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378057,378070] [2022-11-19 07:51:46,296 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378206,378219] [2022-11-19 07:51:46,297 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378362,378375] [2022-11-19 07:51:46,297 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378515,378528] [2022-11-19 07:51:46,298 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378661,378674] [2022-11-19 07:51:46,298 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378804,378817] [2022-11-19 07:51:46,299 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378956,378969] [2022-11-19 07:51:46,299 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379102,379115] [2022-11-19 07:51:46,300 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379247,379260] [2022-11-19 07:51:46,300 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379401,379414] [2022-11-19 07:51:46,300 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379552,379565] [2022-11-19 07:51:46,302 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379707,379720] [2022-11-19 07:51:46,303 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379859,379872] [2022-11-19 07:51:46,303 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380014,380027] [2022-11-19 07:51:46,304 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380178,380191] [2022-11-19 07:51:46,304 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380334,380347] [2022-11-19 07:51:46,305 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380498,380511] [2022-11-19 07:51:46,306 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380640,380653] [2022-11-19 07:51:46,307 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380798,380811] [2022-11-19 07:51:46,307 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380965,380978] [2022-11-19 07:51:46,308 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381124,381137] [2022-11-19 07:51:46,309 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381283,381296] [2022-11-19 07:51:46,309 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381432,381445] [2022-11-19 07:51:46,310 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381579,381592] [2022-11-19 07:51:46,310 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381718,381731] [2022-11-19 07:51:46,311 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381881,381894] [2022-11-19 07:51:46,316 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382047,382060] [2022-11-19 07:51:46,316 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382211,382224] [2022-11-19 07:51:46,317 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382376,382389] [2022-11-19 07:51:46,318 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382541,382554] [2022-11-19 07:51:46,318 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382707,382720] [2022-11-19 07:51:46,319 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382872,382885] [2022-11-19 07:51:46,319 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383039,383052] [2022-11-19 07:51:46,320 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383199,383212] [2022-11-19 07:51:46,327 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383361,383374] [2022-11-19 07:51:46,328 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383520,383533] [2022-11-19 07:51:46,330 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383666,383679] [2022-11-19 07:51:46,330 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383809,383822] [2022-11-19 07:51:46,330 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383953,383966] [2022-11-19 07:51:46,331 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384096,384109] [2022-11-19 07:51:46,331 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384240,384253] [2022-11-19 07:51:46,332 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384381,384394] [2022-11-19 07:51:46,332 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384519,384532] [2022-11-19 07:51:46,332 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384677,384690] [2022-11-19 07:51:46,333 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384836,384849] [2022-11-19 07:51:46,333 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384992,385005] [2022-11-19 07:51:46,334 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385141,385154] [2022-11-19 07:51:46,334 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385293,385306] [2022-11-19 07:51:46,334 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385444,385457] [2022-11-19 07:51:46,335 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385593,385606] [2022-11-19 07:51:46,335 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385745,385758] [2022-11-19 07:51:46,335 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385893,385906] [2022-11-19 07:51:46,336 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386046,386059] [2022-11-19 07:51:46,336 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386197,386210] [2022-11-19 07:51:46,336 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386347,386360] [2022-11-19 07:51:46,337 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386494,386507] [2022-11-19 07:51:46,337 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386645,386658] [2022-11-19 07:51:46,337 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386796,386809] [2022-11-19 07:51:46,338 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386944,386957] [2022-11-19 07:51:46,338 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387110,387123] [2022-11-19 07:51:46,341 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387279,387292] [2022-11-19 07:51:46,342 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387446,387459] [2022-11-19 07:51:46,343 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387614,387627] [2022-11-19 07:51:46,343 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387764,387777] [2022-11-19 07:51:46,344 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387911,387924] [2022-11-19 07:51:46,344 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388072,388085] [2022-11-19 07:51:46,345 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388242,388255] [2022-11-19 07:51:46,345 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388404,388417] [2022-11-19 07:51:46,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:51:46,645 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:51:46,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:46 WrapperNode [2022-11-19 07:51:46,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:51:46,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:51:46,647 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:51:46,647 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:51:46,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:46" (1/1) ... [2022-11-19 07:51:46,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:46" (1/1) ... [2022-11-19 07:51:47,188 INFO L138 Inliner]: procedures = 635, calls = 2105, calls flagged for inlining = 297, calls inlined = 221, statements flattened = 4938 [2022-11-19 07:51:47,188 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:51:47,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:51:47,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:51:47,189 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:51:47,201 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:46" (1/1) ... [2022-11-19 07:51:47,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:46" (1/1) ... [2022-11-19 07:51:47,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:46" (1/1) ... [2022-11-19 07:51:47,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:46" (1/1) ... [2022-11-19 07:51:47,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:46" (1/1) ... [2022-11-19 07:51:47,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:46" (1/1) ... [2022-11-19 07:51:47,666 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:46" (1/1) ... [2022-11-19 07:51:47,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:46" (1/1) ... [2022-11-19 07:51:47,800 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:51:47,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:51:47,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:51:47,801 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:51:47,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:46" (1/1) ... [2022-11-19 07:51:47,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:51:47,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:51:47,831 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:51:47,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:51:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-19 07:51:48,009 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-19 07:51:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_urb_completion [2022-11-19 07:51:48,010 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_urb_completion [2022-11-19 07:51:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-19 07:51:48,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-19 07:51:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 07:51:48,010 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 07:51:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_free_framebuffer_work [2022-11-19 07:51:48,011 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_free_framebuffer_work [2022-11-19 07:51:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_5_23 [2022-11-19 07:51:48,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_5_23 [2022-11-19 07:51:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:51:48,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:51:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-19 07:51:48,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-19 07:51:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 07:51:48,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 07:51:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_fb_info [2022-11-19 07:51:48,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_fb_info [2022-11-19 07:51:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-19 07:51:48,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-19 07:51:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-19 07:51:48,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-19 07:51:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure metrics_reset_store [2022-11-19 07:51:48,013 INFO L138 BoogieDeclarations]: Found implementation of procedure metrics_reset_store [2022-11-19 07:51:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 07:51:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 07:51:48,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 07:51:48,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_urb_list [2022-11-19 07:51:48,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_urb_list [2022-11-19 07:51:48,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 07:51:48,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 07:51:48,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-19 07:51:48,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-19 07:51:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure fb_add_videomode [2022-11-19 07:51:48,015 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_add_videomode [2022-11-19 07:51:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:51:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2022-11-19 07:51:48,015 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2022-11-19 07:51:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure fb_edid_to_monspecs [2022-11-19 07:51:48,016 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_edid_to_monspecs [2022-11-19 07:51:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-19 07:51:48,016 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-19 07:51:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_setup_modes [2022-11-19 07:51:48,016 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_setup_modes [2022-11-19 07:51:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-19 07:51:48,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-19 07:51:48,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 07:51:48,017 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-19 07:51:48,017 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-19 07:51:48,017 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_vidreg_lock [2022-11-19 07:51:48,017 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_vidreg_lock [2022-11-19 07:51:48,017 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-19 07:51:48,018 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-19 07:51:48,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:51:48,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-19 07:51:48,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-19 07:51:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 07:51:48,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 07:51:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-11-19 07:51:48,019 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-11-19 07:51:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-19 07:51:48,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-19 07:51:48,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:51:48,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-19 07:51:48,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-19 07:51:48,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-19 07:51:48,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-19 07:51:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_free_framebuffer [2022-11-19 07:51:48,021 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_free_framebuffer [2022-11-19 07:51:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 07:51:48,021 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 07:51:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-19 07:51:48,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-19 07:51:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_var_color_format [2022-11-19 07:51:48,022 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_var_color_format [2022-11-19 07:51:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-19 07:51:48,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-19 07:51:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-19 07:51:48,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-19 07:51:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-19 07:51:48,023 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-19 07:51:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-19 07:51:48,023 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-19 07:51:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-19 07:51:48,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-19 07:51:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-11-19 07:51:48,024 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-11-19 07:51:48,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-19 07:51:48,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-19 07:51:48,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:51:48,028 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register_16 [2022-11-19 07:51:48,028 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register_16 [2022-11-19 07:51:48,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:51:48,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 07:51:48,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 07:51:48,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:51:48,029 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:51:48,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:51:48,029 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-19 07:51:48,029 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-19 07:51:48,029 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register [2022-11-19 07:51:48,029 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register [2022-11-19 07:51:48,030 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:51:48,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:51:48,030 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-11-19 07:51:48,030 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-11-19 07:51:48,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2022-11-19 07:51:48,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2022-11-19 07:51:48,030 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_init_framebuffer_work [2022-11-19 07:51:48,031 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_init_framebuffer_work [2022-11-19 07:51:48,031 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-19 07:51:48,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-19 07:51:48,031 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 07:51:48,031 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 07:51:48,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-19 07:51:48,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-19 07:51:48,032 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-19 07:51:48,032 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-19 07:51:48,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_struct_fb_ops_dummy_resourceless_instance_5 [2022-11-19 07:51:48,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_struct_fb_ops_dummy_resourceless_instance_5 [2022-11-19 07:51:48,033 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-11-19 07:51:48,033 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-11-19 07:51:48,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:51:48,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:51:48,033 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-11-19 07:51:48,034 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-11-19 07:51:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_submit_urb [2022-11-19 07:51:48,034 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_submit_urb [2022-11-19 07:51:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:51:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:51:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:51:48,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:51:48,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 07:51:48,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 07:51:48,035 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_vidreg_unlock [2022-11-19 07:51:48,035 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_vidreg_unlock [2022-11-19 07:51:48,035 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_check_var [2022-11-19 07:51:48,035 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_check_var [2022-11-19 07:51:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_is_valid_mode [2022-11-19 07:51:48,036 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_is_valid_mode [2022-11-19 07:51:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register_lfsr16 [2022-11-19 07:51:48,036 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register_lfsr16 [2022-11-19 07:51:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-19 07:51:48,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-19 07:51:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure fb_destroy_modelist [2022-11-19 07:51:48,037 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_destroy_modelist [2022-11-19 07:51:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-19 07:51:48,037 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-19 07:51:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-19 07:51:48,037 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-19 07:51:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:51:48,037 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:51:48,038 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_release [2022-11-19 07:51:48,038 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_release [2022-11-19 07:51:48,038 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_get_urb [2022-11-19 07:51:48,038 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_get_urb [2022-11-19 07:51:48,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_framebuffer_103 [2022-11-19 07:51:48,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_framebuffer_103 [2022-11-19 07:51:48,038 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_video_mode [2022-11-19 07:51:48,039 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_video_mode [2022-11-19 07:51:48,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-19 07:51:48,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-19 07:51:48,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2022-11-19 07:51:48,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2022-11-19 07:51:48,039 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_blank [2022-11-19 07:51:48,039 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_blank [2022-11-19 07:51:48,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-19 07:51:48,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-19 07:51:48,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:51:48,040 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 07:51:48,040 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 07:51:48,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-19 07:51:48,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-19 07:51:48,041 INFO L130 BoogieDeclarations]: Found specification of procedure get_cycles [2022-11-19 07:51:48,041 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cycles [2022-11-19 07:51:48,041 INFO L130 BoogieDeclarations]: Found specification of procedure up [2022-11-19 07:51:48,041 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2022-11-19 07:51:48,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:51:48,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_107 [2022-11-19 07:51:48,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_107 [2022-11-19 07:51:48,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:51:48,042 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-19 07:51:48,042 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-19 07:51:48,042 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-19 07:51:48,042 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-19 07:51:48,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-19 07:51:48,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-19 07:51:48,043 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-19 07:51:48,043 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-19 07:51:48,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 07:51:48,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 07:51:48,044 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-19 07:51:48,044 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-19 07:51:48,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-19 07:51:48,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-19 07:51:48,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2022-11-19 07:51:48,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2022-11-19 07:51:48,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-19 07:51:48,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-19 07:51:48,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-19 07:51:48,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-19 07:51:48,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-19 07:51:48,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-19 07:51:48,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2022-11-19 07:51:48,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2022-11-19 07:51:48,052 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-19 07:51:48,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-19 07:51:48,053 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-19 07:51:48,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-19 07:51:48,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-19 07:51:48,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-19 07:51:48,053 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 07:51:48,053 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 07:51:48,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-19 07:51:48,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-19 07:51:48,054 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_handle_damage [2022-11-19 07:51:48,054 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_handle_damage [2022-11-19 07:51:48,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:51:48,054 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_render_hline [2022-11-19 07:51:48,054 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_render_hline [2022-11-19 07:51:48,055 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_usb_disconnect [2022-11-19 07:51:48,055 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_usb_disconnect [2022-11-19 07:51:48,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-19 07:51:48,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-19 07:51:48,055 INFO L130 BoogieDeclarations]: Found specification of procedure edid_show [2022-11-19 07:51:48,055 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_show [2022-11-19 07:51:48,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 07:51:48,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 07:51:48,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-19 07:51:48,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-19 07:51:48,056 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_blanking [2022-11-19 07:51:48,056 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_blanking [2022-11-19 07:51:48,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 07:51:48,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 07:51:48,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-19 07:51:48,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-19 07:51:48,057 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-19 07:51:48,057 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-19 07:51:48,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_register_13_2 [2022-11-19 07:51:48,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_register_13_2 [2022-11-19 07:51:48,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_framebuffer [2022-11-19 07:51:48,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_framebuffer [2022-11-19 07:51:48,058 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_set_par [2022-11-19 07:51:48,058 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_set_par [2022-11-19 07:51:48,058 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-19 07:51:48,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:51:48,058 INFO L130 BoogieDeclarations]: Found specification of procedure edid_store [2022-11-19 07:51:48,058 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_store [2022-11-19 07:51:49,208 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:51:49,231 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:51:49,586 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 07:52:02,926 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:52:06,374 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:52:06,375 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 07:52:06,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:52:06 BoogieIcfgContainer [2022-11-19 07:52:06,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:52:06,385 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:52:06,385 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:52:06,388 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:52:06,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:51:41" (1/3) ... [2022-11-19 07:52:06,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f80faa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:52:06, skipping insertion in model container [2022-11-19 07:52:06,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:51:46" (2/3) ... [2022-11-19 07:52:06,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f80faa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:52:06, skipping insertion in model container [2022-11-19 07:52:06,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:52:06" (3/3) ... [2022-11-19 07:52:06,401 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i [2022-11-19 07:52:06,422 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:52:06,422 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2022-11-19 07:52:06,535 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:52:06,543 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4e77bb3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:52:06,543 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2022-11-19 07:52:06,553 INFO L276 IsEmpty]: Start isEmpty. Operand has 1346 states, 770 states have (on average 1.3207792207792208) internal successors, (1017), 847 states have internal predecessors, (1017), 427 states have call successors, (427), 116 states have call predecessors, (427), 115 states have return successors, (419), 405 states have call predecessors, (419), 419 states have call successors, (419) [2022-11-19 07:52:06,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-19 07:52:06,564 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:52:06,565 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:52:06,565 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:52:06,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:52:06,574 INFO L85 PathProgramCache]: Analyzing trace with hash 702866183, now seen corresponding path program 1 times [2022-11-19 07:52:06,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:52:06,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571995745] [2022-11-19 07:52:06,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:52:06,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:52:06,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:52:07,649 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:52:07,651 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:52:07,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571995745] [2022-11-19 07:52:07,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571995745] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:52:07,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:52:07,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:52:07,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154416532] [2022-11-19 07:52:07,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:52:07,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:52:07,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:52:07,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:52:07,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:52:07,703 INFO L87 Difference]: Start difference. First operand has 1346 states, 770 states have (on average 1.3207792207792208) internal successors, (1017), 847 states have internal predecessors, (1017), 427 states have call successors, (427), 116 states have call predecessors, (427), 115 states have return successors, (419), 405 states have call predecessors, (419), 419 states have call successors, (419) Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-19 07:52:10,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:52:12,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:52:14,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:52:14,249 INFO L93 Difference]: Finished difference Result 2653 states and 3793 transitions. [2022-11-19 07:52:14,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:52:14,251 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (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 51 [2022-11-19 07:52:14,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:52:14,288 INFO L225 Difference]: With dead ends: 2653 [2022-11-19 07:52:14,288 INFO L226 Difference]: Without dead ends: 1328 [2022-11-19 07:52:14,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:52:14,310 INFO L413 NwaCegarLoop]: 1582 mSDtfsCounter, 1805 mSDsluCounter, 1582 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1807 SdHoareTripleChecker+Valid, 3164 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:52:14,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1807 Valid, 3164 Invalid, 487 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 486 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-11-19 07:52:14,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1328 states. [2022-11-19 07:52:14,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1328 to 1328. [2022-11-19 07:52:14,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1328 states, 763 states have (on average 1.2686762778505898) internal successors, (968), 832 states have internal predecessors, (968), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-19 07:52:14,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1328 states to 1328 states and 1804 transitions. [2022-11-19 07:52:14,594 INFO L78 Accepts]: Start accepts. Automaton has 1328 states and 1804 transitions. Word has length 51 [2022-11-19 07:52:14,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:52:14,596 INFO L495 AbstractCegarLoop]: Abstraction has 1328 states and 1804 transitions. [2022-11-19 07:52:14,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-19 07:52:14,596 INFO L276 IsEmpty]: Start isEmpty. Operand 1328 states and 1804 transitions. [2022-11-19 07:52:14,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-19 07:52:14,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:52:14,600 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:52:14,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:52:14,600 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:52:14,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:52:14,601 INFO L85 PathProgramCache]: Analyzing trace with hash -761186626, now seen corresponding path program 1 times [2022-11-19 07:52:14,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:52:14,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024447035] [2022-11-19 07:52:14,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:52:14,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:52:14,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:52:15,116 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:52:15,117 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:52:15,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024447035] [2022-11-19 07:52:15,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024447035] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:52:15,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:52:15,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:52:15,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352147819] [2022-11-19 07:52:15,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:52:15,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:52:15,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:52:15,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:52:15,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:52:15,120 INFO L87 Difference]: Start difference. First operand 1328 states and 1804 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 07:52:17,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:52:20,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:52:20,913 INFO L93 Difference]: Finished difference Result 1328 states and 1804 transitions. [2022-11-19 07:52:20,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:52:20,914 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (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 56 [2022-11-19 07:52:20,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:52:20,923 INFO L225 Difference]: With dead ends: 1328 [2022-11-19 07:52:20,923 INFO L226 Difference]: Without dead ends: 1326 [2022-11-19 07:52:20,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:52:20,926 INFO L413 NwaCegarLoop]: 1558 mSDtfsCounter, 1779 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1781 SdHoareTripleChecker+Valid, 3116 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:52:20,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1781 Valid, 3116 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-11-19 07:52:20,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2022-11-19 07:52:21,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1326. [2022-11-19 07:52:21,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 762 states have (on average 1.2677165354330708) internal successors, (966), 830 states have internal predecessors, (966), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-19 07:52:21,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 1802 transitions. [2022-11-19 07:52:21,018 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 1802 transitions. Word has length 56 [2022-11-19 07:52:21,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:52:21,020 INFO L495 AbstractCegarLoop]: Abstraction has 1326 states and 1802 transitions. [2022-11-19 07:52:21,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-19 07:52:21,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1802 transitions. [2022-11-19 07:52:21,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-19 07:52:21,022 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:52:21,022 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:52:21,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:52:21,023 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:52:21,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:52:21,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1923939745, now seen corresponding path program 1 times [2022-11-19 07:52:21,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:52:21,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557762680] [2022-11-19 07:52:21,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:52:21,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:52:21,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:52:21,480 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:52:21,480 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:52:21,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557762680] [2022-11-19 07:52:21,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557762680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:52:21,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:52:21,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:52:21,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056459404] [2022-11-19 07:52:21,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:52:21,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:52:21,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:52:21,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:52:21,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:52:21,483 INFO L87 Difference]: Start difference. First operand 1326 states and 1802 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 07:52:24,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:52:27,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:52:27,048 INFO L93 Difference]: Finished difference Result 1326 states and 1802 transitions. [2022-11-19 07:52:27,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:52:27,049 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (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 61 [2022-11-19 07:52:27,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:52:27,057 INFO L225 Difference]: With dead ends: 1326 [2022-11-19 07:52:27,057 INFO L226 Difference]: Without dead ends: 1324 [2022-11-19 07:52:27,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:52:27,062 INFO L413 NwaCegarLoop]: 1556 mSDtfsCounter, 1773 mSDsluCounter, 1556 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1777 SdHoareTripleChecker+Valid, 3112 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:52:27,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1777 Valid, 3112 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-19 07:52:27,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2022-11-19 07:52:27,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 1324. [2022-11-19 07:52:27,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 761 states have (on average 1.266754270696452) internal successors, (964), 828 states have internal predecessors, (964), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-19 07:52:27,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1800 transitions. [2022-11-19 07:52:27,256 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1800 transitions. Word has length 61 [2022-11-19 07:52:27,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:52:27,258 INFO L495 AbstractCegarLoop]: Abstraction has 1324 states and 1800 transitions. [2022-11-19 07:52:27,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-19 07:52:27,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1800 transitions. [2022-11-19 07:52:27,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-19 07:52:27,267 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:52:27,267 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:52:27,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:52:27,267 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:52:27,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:52:27,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1579619520, now seen corresponding path program 1 times [2022-11-19 07:52:27,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:52:27,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872536042] [2022-11-19 07:52:27,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:52:27,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:52:27,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:52:27,645 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:52:27,645 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:52:27,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872536042] [2022-11-19 07:52:27,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872536042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:52:27,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:52:27,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:52:27,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090418221] [2022-11-19 07:52:27,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:52:27,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:52:27,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:52:27,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:52:27,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:52:27,648 INFO L87 Difference]: Start difference. First operand 1324 states and 1800 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-19 07:52:30,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:52:32,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:52:32,692 INFO L93 Difference]: Finished difference Result 1324 states and 1800 transitions. [2022-11-19 07:52:32,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:52:32,692 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (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 66 [2022-11-19 07:52:32,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:52:32,700 INFO L225 Difference]: With dead ends: 1324 [2022-11-19 07:52:32,700 INFO L226 Difference]: Without dead ends: 1322 [2022-11-19 07:52:32,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:52:32,702 INFO L413 NwaCegarLoop]: 1554 mSDtfsCounter, 1770 mSDsluCounter, 1554 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1774 SdHoareTripleChecker+Valid, 3108 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:52:32,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1774 Valid, 3108 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-11-19 07:52:32,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states. [2022-11-19 07:52:32,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1322. [2022-11-19 07:52:32,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 760 states have (on average 1.2657894736842106) internal successors, (962), 826 states have internal predecessors, (962), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-19 07:52:32,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1798 transitions. [2022-11-19 07:52:32,789 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1798 transitions. Word has length 66 [2022-11-19 07:52:32,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:52:32,790 INFO L495 AbstractCegarLoop]: Abstraction has 1322 states and 1798 transitions. [2022-11-19 07:52:32,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-19 07:52:32,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1798 transitions. [2022-11-19 07:52:32,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-19 07:52:32,792 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:52:32,792 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:52:32,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:52:32,793 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:52:32,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:52:32,793 INFO L85 PathProgramCache]: Analyzing trace with hash 775052538, now seen corresponding path program 1 times [2022-11-19 07:52:32,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:52:32,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367337235] [2022-11-19 07:52:32,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:52:32,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:52:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:52:33,153 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:52:33,154 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:52:33,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367337235] [2022-11-19 07:52:33,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367337235] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:52:33,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:52:33,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:52:33,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136832035] [2022-11-19 07:52:33,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:52:33,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:52:33,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:52:33,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:52:33,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:52:33,157 INFO L87 Difference]: Start difference. First operand 1322 states and 1798 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 07:52:36,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:52:38,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:52:40,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:52:40,092 INFO L93 Difference]: Finished difference Result 1322 states and 1798 transitions. [2022-11-19 07:52:40,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:52:40,092 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (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 71 [2022-11-19 07:52:40,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:52:40,100 INFO L225 Difference]: With dead ends: 1322 [2022-11-19 07:52:40,101 INFO L226 Difference]: Without dead ends: 1320 [2022-11-19 07:52:40,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:52:40,103 INFO L413 NwaCegarLoop]: 1552 mSDtfsCounter, 1770 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1772 SdHoareTripleChecker+Valid, 3104 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:52:40,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1772 Valid, 3104 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-11-19 07:52:40,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2022-11-19 07:52:40,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1320. [2022-11-19 07:52:40,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 759 states have (on average 1.2648221343873518) internal successors, (960), 824 states have internal predecessors, (960), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-19 07:52:40,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 1796 transitions. [2022-11-19 07:52:40,276 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 1796 transitions. Word has length 71 [2022-11-19 07:52:40,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:52:40,277 INFO L495 AbstractCegarLoop]: Abstraction has 1320 states and 1796 transitions. [2022-11-19 07:52:40,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-19 07:52:40,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 1796 transitions. [2022-11-19 07:52:40,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-19 07:52:40,281 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:52:40,281 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:52:40,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:52:40,281 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:52:40,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:52:40,282 INFO L85 PathProgramCache]: Analyzing trace with hash -102929335, now seen corresponding path program 1 times [2022-11-19 07:52:40,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:52:40,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130106103] [2022-11-19 07:52:40,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:52:40,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:52:40,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:52:40,724 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:52:40,725 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:52:40,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130106103] [2022-11-19 07:52:40,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130106103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:52:40,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:52:40,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:52:40,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027481121] [2022-11-19 07:52:40,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:52:40,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:52:40,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:52:40,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:52:40,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:52:40,728 INFO L87 Difference]: Start difference. First operand 1320 states and 1796 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 07:52:43,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:52:45,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:52:45,959 INFO L93 Difference]: Finished difference Result 1320 states and 1796 transitions. [2022-11-19 07:52:45,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:52:45,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (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 76 [2022-11-19 07:52:45,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:52:45,968 INFO L225 Difference]: With dead ends: 1320 [2022-11-19 07:52:45,968 INFO L226 Difference]: Without dead ends: 1318 [2022-11-19 07:52:45,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:52:45,971 INFO L413 NwaCegarLoop]: 1550 mSDtfsCounter, 1764 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1768 SdHoareTripleChecker+Valid, 3100 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:52:45,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1768 Valid, 3100 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-11-19 07:52:45,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2022-11-19 07:52:46,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 1318. [2022-11-19 07:52:46,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1318 states, 758 states have (on average 1.2638522427440633) internal successors, (958), 822 states have internal predecessors, (958), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-19 07:52:46,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1318 states to 1318 states and 1794 transitions. [2022-11-19 07:52:46,123 INFO L78 Accepts]: Start accepts. Automaton has 1318 states and 1794 transitions. Word has length 76 [2022-11-19 07:52:46,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:52:46,124 INFO L495 AbstractCegarLoop]: Abstraction has 1318 states and 1794 transitions. [2022-11-19 07:52:46,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-19 07:52:46,125 INFO L276 IsEmpty]: Start isEmpty. Operand 1318 states and 1794 transitions. [2022-11-19 07:52:46,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-19 07:52:46,126 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:52:46,127 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:52:46,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:52:46,127 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:52:46,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:52:46,128 INFO L85 PathProgramCache]: Analyzing trace with hash -2128810283, now seen corresponding path program 1 times [2022-11-19 07:52:46,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:52:46,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567052963] [2022-11-19 07:52:46,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:52:46,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:52:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:52:46,545 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:52:46,545 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:52:46,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567052963] [2022-11-19 07:52:46,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567052963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:52:46,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:52:46,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:52:46,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349165900] [2022-11-19 07:52:46,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:52:46,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:52:46,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:52:46,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:52:46,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:52:46,548 INFO L87 Difference]: Start difference. First operand 1318 states and 1794 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-19 07:52:48,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:52:50,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:52:52,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:52:52,661 INFO L93 Difference]: Finished difference Result 1318 states and 1794 transitions. [2022-11-19 07:52:52,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:52:52,661 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (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 81 [2022-11-19 07:52:52,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:52:52,669 INFO L225 Difference]: With dead ends: 1318 [2022-11-19 07:52:52,669 INFO L226 Difference]: Without dead ends: 1316 [2022-11-19 07:52:52,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:52:52,671 INFO L413 NwaCegarLoop]: 1548 mSDtfsCounter, 1764 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1766 SdHoareTripleChecker+Valid, 3096 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:52:52,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1766 Valid, 3096 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-11-19 07:52:52,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2022-11-19 07:52:52,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 1316. [2022-11-19 07:52:52,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1316 states, 757 states have (on average 1.262879788639366) internal successors, (956), 820 states have internal predecessors, (956), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-19 07:52:52,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1316 states to 1316 states and 1792 transitions. [2022-11-19 07:52:52,773 INFO L78 Accepts]: Start accepts. Automaton has 1316 states and 1792 transitions. Word has length 81 [2022-11-19 07:52:52,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:52:52,774 INFO L495 AbstractCegarLoop]: Abstraction has 1316 states and 1792 transitions. [2022-11-19 07:52:52,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-19 07:52:52,775 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states and 1792 transitions. [2022-11-19 07:52:52,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-19 07:52:52,776 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:52:52,776 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:52:52,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:52:52,777 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:52:52,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:52:52,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1563916906, now seen corresponding path program 1 times [2022-11-19 07:52:52,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:52:52,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90421419] [2022-11-19 07:52:52,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:52:52,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:52:52,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:52:53,174 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:52:53,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:52:53,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90421419] [2022-11-19 07:52:53,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90421419] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:52:53,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:52:53,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:52:53,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611394636] [2022-11-19 07:52:53,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:52:53,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:52:53,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:52:53,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:52:53,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:52:53,177 INFO L87 Difference]: Start difference. First operand 1316 states and 1792 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-19 07:52:56,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:52:58,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:52:59,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:52:59,864 INFO L93 Difference]: Finished difference Result 1316 states and 1792 transitions. [2022-11-19 07:52:59,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:52:59,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 86 [2022-11-19 07:52:59,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:52:59,872 INFO L225 Difference]: With dead ends: 1316 [2022-11-19 07:52:59,872 INFO L226 Difference]: Without dead ends: 1314 [2022-11-19 07:52:59,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:52:59,875 INFO L413 NwaCegarLoop]: 1546 mSDtfsCounter, 1765 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1767 SdHoareTripleChecker+Valid, 3088 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:52:59,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1767 Valid, 3088 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-11-19 07:52:59,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2022-11-19 07:52:59,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1314. [2022-11-19 07:52:59,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1314 states, 756 states have (on average 1.2619047619047619) internal successors, (954), 818 states have internal predecessors, (954), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-19 07:53:00,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1314 states to 1314 states and 1790 transitions. [2022-11-19 07:53:00,000 INFO L78 Accepts]: Start accepts. Automaton has 1314 states and 1790 transitions. Word has length 86 [2022-11-19 07:53:00,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:00,001 INFO L495 AbstractCegarLoop]: Abstraction has 1314 states and 1790 transitions. [2022-11-19 07:53:00,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-19 07:53:00,001 INFO L276 IsEmpty]: Start isEmpty. Operand 1314 states and 1790 transitions. [2022-11-19 07:53:00,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-19 07:53:00,003 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:00,003 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:00,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 07:53:00,004 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:53:00,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:00,004 INFO L85 PathProgramCache]: Analyzing trace with hash -314268819, now seen corresponding path program 1 times [2022-11-19 07:53:00,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:00,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437908369] [2022-11-19 07:53:00,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:00,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:00,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:00,345 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:53:00,345 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:00,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437908369] [2022-11-19 07:53:00,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437908369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:00,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:00,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:53:00,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145672962] [2022-11-19 07:53:00,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:00,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:53:00,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:00,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:53:00,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:53:00,349 INFO L87 Difference]: Start difference. First operand 1314 states and 1790 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-19 07:53:03,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:53:05,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:05,413 INFO L93 Difference]: Finished difference Result 1314 states and 1790 transitions. [2022-11-19 07:53:05,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:53:05,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (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 88 [2022-11-19 07:53:05,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:05,419 INFO L225 Difference]: With dead ends: 1314 [2022-11-19 07:53:05,420 INFO L226 Difference]: Without dead ends: 1312 [2022-11-19 07:53:05,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:53:05,422 INFO L413 NwaCegarLoop]: 1544 mSDtfsCounter, 1754 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1758 SdHoareTripleChecker+Valid, 3088 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:05,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1758 Valid, 3088 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-11-19 07:53:05,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2022-11-19 07:53:05,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1312. [2022-11-19 07:53:05,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1312 states, 755 states have (on average 1.2609271523178809) internal successors, (952), 816 states have internal predecessors, (952), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-19 07:53:05,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 1788 transitions. [2022-11-19 07:53:05,547 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 1788 transitions. Word has length 88 [2022-11-19 07:53:05,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:05,548 INFO L495 AbstractCegarLoop]: Abstraction has 1312 states and 1788 transitions. [2022-11-19 07:53:05,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-19 07:53:05,548 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 1788 transitions. [2022-11-19 07:53:05,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-19 07:53:05,550 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:05,550 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:05,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 07:53:05,551 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:53:05,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:05,551 INFO L85 PathProgramCache]: Analyzing trace with hash -399613557, now seen corresponding path program 1 times [2022-11-19 07:53:05,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:05,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699805899] [2022-11-19 07:53:05,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:05,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:05,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:05,936 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:53:05,936 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:05,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699805899] [2022-11-19 07:53:05,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699805899] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:05,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:05,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:53:05,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957608656] [2022-11-19 07:53:05,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:05,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:53:05,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:05,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:53:05,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:53:05,939 INFO L87 Difference]: Start difference. First operand 1312 states and 1788 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-19 07:53:09,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:53:11,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:11,049 INFO L93 Difference]: Finished difference Result 1312 states and 1788 transitions. [2022-11-19 07:53:11,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:53:11,049 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (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 93 [2022-11-19 07:53:11,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:11,056 INFO L225 Difference]: With dead ends: 1312 [2022-11-19 07:53:11,056 INFO L226 Difference]: Without dead ends: 1310 [2022-11-19 07:53:11,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:53:11,058 INFO L413 NwaCegarLoop]: 1542 mSDtfsCounter, 1753 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1757 SdHoareTripleChecker+Valid, 3084 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:11,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1757 Valid, 3084 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-11-19 07:53:11,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2022-11-19 07:53:11,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 1310. [2022-11-19 07:53:11,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1310 states, 754 states have (on average 1.259946949602122) internal successors, (950), 814 states have internal predecessors, (950), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-19 07:53:11,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 1786 transitions. [2022-11-19 07:53:11,177 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 1786 transitions. Word has length 93 [2022-11-19 07:53:11,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:11,177 INFO L495 AbstractCegarLoop]: Abstraction has 1310 states and 1786 transitions. [2022-11-19 07:53:11,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-19 07:53:11,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 1786 transitions. [2022-11-19 07:53:11,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-19 07:53:11,180 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:11,180 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:11,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 07:53:11,180 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:53:11,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:11,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1079453464, now seen corresponding path program 1 times [2022-11-19 07:53:11,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:11,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977526816] [2022-11-19 07:53:11,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:11,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:11,518 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:53:11,519 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:11,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977526816] [2022-11-19 07:53:11,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977526816] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:11,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:11,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:53:11,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985255726] [2022-11-19 07:53:11,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:11,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:53:11,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:11,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:53:11,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:53:11,522 INFO L87 Difference]: Start difference. First operand 1310 states and 1786 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 07:53:14,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:53:17,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:17,285 INFO L93 Difference]: Finished difference Result 1310 states and 1786 transitions. [2022-11-19 07:53:17,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:53:17,285 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (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 98 [2022-11-19 07:53:17,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:17,292 INFO L225 Difference]: With dead ends: 1310 [2022-11-19 07:53:17,292 INFO L226 Difference]: Without dead ends: 1308 [2022-11-19 07:53:17,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:53:17,294 INFO L413 NwaCegarLoop]: 1540 mSDtfsCounter, 1750 mSDsluCounter, 1540 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1754 SdHoareTripleChecker+Valid, 3080 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:17,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1754 Valid, 3080 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-11-19 07:53:17,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1308 states. [2022-11-19 07:53:17,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1308 to 1308. [2022-11-19 07:53:17,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1308 states, 753 states have (on average 1.2589641434262948) internal successors, (948), 812 states have internal predecessors, (948), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-19 07:53:17,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1308 states to 1308 states and 1784 transitions. [2022-11-19 07:53:17,439 INFO L78 Accepts]: Start accepts. Automaton has 1308 states and 1784 transitions. Word has length 98 [2022-11-19 07:53:17,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:17,440 INFO L495 AbstractCegarLoop]: Abstraction has 1308 states and 1784 transitions. [2022-11-19 07:53:17,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 07:53:17,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1308 states and 1784 transitions. [2022-11-19 07:53:17,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-19 07:53:17,442 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:17,443 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-19 07:53:17,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 07:53:17,443 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:53:17,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:17,444 INFO L85 PathProgramCache]: Analyzing trace with hash -466719765, now seen corresponding path program 1 times [2022-11-19 07:53:17,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:17,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944574642] [2022-11-19 07:53:17,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:17,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:17,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:18,737 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-19 07:53:18,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:18,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944574642] [2022-11-19 07:53:18,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944574642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:18,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:18,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 07:53:18,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358712651] [2022-11-19 07:53:18,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:18,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:53:18,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:18,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:53:18,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:53:18,740 INFO L87 Difference]: Start difference. First operand 1308 states and 1784 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-19 07:53:23,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:53:27,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:27,969 INFO L93 Difference]: Finished difference Result 1308 states and 1784 transitions. [2022-11-19 07:53:27,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:53:27,969 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 131 [2022-11-19 07:53:27,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:27,976 INFO L225 Difference]: With dead ends: 1308 [2022-11-19 07:53:27,976 INFO L226 Difference]: Without dead ends: 1306 [2022-11-19 07:53:27,976 INFO L412 NwaCegarLoop]: 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 [2022-11-19 07:53:27,977 INFO L413 NwaCegarLoop]: 1539 mSDtfsCounter, 1737 mSDsluCounter, 3784 mSDsCounter, 0 mSdLazyCounter, 1800 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1744 SdHoareTripleChecker+Valid, 5323 SdHoareTripleChecker+Invalid, 1802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1800 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:27,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1744 Valid, 5323 Invalid, 1802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1800 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2022-11-19 07:53:27,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1306 states. [2022-11-19 07:53:28,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1306 to 1306. [2022-11-19 07:53:28,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1306 states, 752 states have (on average 1.2579787234042554) internal successors, (946), 810 states have internal predecessors, (946), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-19 07:53:28,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1306 states to 1306 states and 1782 transitions. [2022-11-19 07:53:28,121 INFO L78 Accepts]: Start accepts. Automaton has 1306 states and 1782 transitions. Word has length 131 [2022-11-19 07:53:28,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:28,122 INFO L495 AbstractCegarLoop]: Abstraction has 1306 states and 1782 transitions. [2022-11-19 07:53:28,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-19 07:53:28,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1306 states and 1782 transitions. [2022-11-19 07:53:28,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-19 07:53:28,126 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:28,126 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:28,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-19 07:53:28,127 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:53:28,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:28,127 INFO L85 PathProgramCache]: Analyzing trace with hash 9527105, now seen corresponding path program 1 times [2022-11-19 07:53:28,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:28,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979587595] [2022-11-19 07:53:28,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:28,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:28,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:28,455 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:53:28,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:28,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979587595] [2022-11-19 07:53:28,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979587595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:28,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:28,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:53:28,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256685041] [2022-11-19 07:53:28,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:28,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:53:28,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:28,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:53:28,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:53:28,458 INFO L87 Difference]: Start difference. First operand 1306 states and 1782 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-19 07:53:31,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:53:33,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:33,342 INFO L93 Difference]: Finished difference Result 1306 states and 1782 transitions. [2022-11-19 07:53:33,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:53:33,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (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 103 [2022-11-19 07:53:33,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:33,349 INFO L225 Difference]: With dead ends: 1306 [2022-11-19 07:53:33,350 INFO L226 Difference]: Without dead ends: 1304 [2022-11-19 07:53:33,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:53:33,351 INFO L413 NwaCegarLoop]: 1536 mSDtfsCounter, 1745 mSDsluCounter, 1536 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1749 SdHoareTripleChecker+Valid, 3072 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:33,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1749 Valid, 3072 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-11-19 07:53:33,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2022-11-19 07:53:33,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1304. [2022-11-19 07:53:33,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 751 states have (on average 1.2569906790945407) internal successors, (944), 808 states have internal predecessors, (944), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-19 07:53:33,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1780 transitions. [2022-11-19 07:53:33,490 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1780 transitions. Word has length 103 [2022-11-19 07:53:33,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:33,490 INFO L495 AbstractCegarLoop]: Abstraction has 1304 states and 1780 transitions. [2022-11-19 07:53:33,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-19 07:53:33,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1780 transitions. [2022-11-19 07:53:33,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-19 07:53:33,492 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:33,493 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:33,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-19 07:53:33,493 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:53:33,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:33,494 INFO L85 PathProgramCache]: Analyzing trace with hash 896765584, now seen corresponding path program 1 times [2022-11-19 07:53:33,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:33,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791403844] [2022-11-19 07:53:33,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:33,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:34,300 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-11-19 07:53:34,300 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:34,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791403844] [2022-11-19 07:53:34,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791403844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:34,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:34,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:53:34,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471973563] [2022-11-19 07:53:34,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:34,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:53:34,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:34,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:53:34,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:53:34,303 INFO L87 Difference]: Start difference. First operand 1304 states and 1780 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-19 07:53:37,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:53:43,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:43,278 INFO L93 Difference]: Finished difference Result 2496 states and 3435 transitions. [2022-11-19 07:53:43,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:53:43,279 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 128 [2022-11-19 07:53:43,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:43,293 INFO L225 Difference]: With dead ends: 2496 [2022-11-19 07:53:43,293 INFO L226 Difference]: Without dead ends: 2494 [2022-11-19 07:53:43,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:53:43,294 INFO L413 NwaCegarLoop]: 2280 mSDtfsCounter, 1755 mSDsluCounter, 5965 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1758 SdHoareTripleChecker+Valid, 8245 SdHoareTripleChecker+Invalid, 1172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:43,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1758 Valid, 8245 Invalid, 1172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1169 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2022-11-19 07:53:43,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2494 states. [2022-11-19 07:53:43,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2494 to 2318. [2022-11-19 07:53:43,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2318 states, 1350 states have (on average 1.2674074074074073) internal successors, (1711), 1441 states have internal predecessors, (1711), 745 states have call successors, (745), 205 states have call predecessors, (745), 203 states have return successors, (792), 712 states have call predecessors, (792), 743 states have call successors, (792) [2022-11-19 07:53:43,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2318 states to 2318 states and 3248 transitions. [2022-11-19 07:53:43,608 INFO L78 Accepts]: Start accepts. Automaton has 2318 states and 3248 transitions. Word has length 128 [2022-11-19 07:53:43,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:43,609 INFO L495 AbstractCegarLoop]: Abstraction has 2318 states and 3248 transitions. [2022-11-19 07:53:43,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-19 07:53:43,609 INFO L276 IsEmpty]: Start isEmpty. Operand 2318 states and 3248 transitions. [2022-11-19 07:53:43,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-11-19 07:53:43,612 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:43,612 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:43,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-19 07:53:43,613 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:53:43,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:43,613 INFO L85 PathProgramCache]: Analyzing trace with hash -328909410, now seen corresponding path program 1 times [2022-11-19 07:53:43,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:43,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116194923] [2022-11-19 07:53:43,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:43,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:43,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:43,927 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2022-11-19 07:53:43,927 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:43,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116194923] [2022-11-19 07:53:43,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116194923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:43,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:43,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:53:43,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969751035] [2022-11-19 07:53:43,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:43,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:53:43,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:43,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:53:43,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:53:43,931 INFO L87 Difference]: Start difference. First operand 2318 states and 3248 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-19 07:53:44,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:53:47,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:53:48,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:48,687 INFO L93 Difference]: Finished difference Result 4597 states and 6596 transitions. [2022-11-19 07:53:48,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:53:48,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 140 [2022-11-19 07:53:48,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:48,706 INFO L225 Difference]: With dead ends: 4597 [2022-11-19 07:53:48,706 INFO L226 Difference]: Without dead ends: 2312 [2022-11-19 07:53:48,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:53:48,719 INFO L413 NwaCegarLoop]: 1531 mSDtfsCounter, 1725 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1725 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:48,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1725 Valid, 1531 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-19 07:53:48,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2312 states. [2022-11-19 07:53:49,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2312 to 2312. [2022-11-19 07:53:49,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2312 states, 1345 states have (on average 1.2654275092936802) internal successors, (1702), 1435 states have internal predecessors, (1702), 745 states have call successors, (745), 205 states have call predecessors, (745), 203 states have return successors, (792), 712 states have call predecessors, (792), 743 states have call successors, (792) [2022-11-19 07:53:49,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2312 states to 2312 states and 3239 transitions. [2022-11-19 07:53:49,120 INFO L78 Accepts]: Start accepts. Automaton has 2312 states and 3239 transitions. Word has length 140 [2022-11-19 07:53:49,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:49,122 INFO L495 AbstractCegarLoop]: Abstraction has 2312 states and 3239 transitions. [2022-11-19 07:53:49,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-19 07:53:49,123 INFO L276 IsEmpty]: Start isEmpty. Operand 2312 states and 3239 transitions. [2022-11-19 07:53:49,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-11-19 07:53:49,125 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:49,125 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:49,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-19 07:53:49,126 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:53:49,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:49,126 INFO L85 PathProgramCache]: Analyzing trace with hash 2038375523, now seen corresponding path program 1 times [2022-11-19 07:53:49,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:49,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309316486] [2022-11-19 07:53:49,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:49,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:49,440 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:53:49,440 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:49,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309316486] [2022-11-19 07:53:49,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309316486] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:49,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:49,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:53:49,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775988823] [2022-11-19 07:53:49,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:49,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:53:49,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:49,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:53:49,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:53:49,445 INFO L87 Difference]: Start difference. First operand 2312 states and 3239 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-19 07:53:53,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:53:55,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:55,677 INFO L93 Difference]: Finished difference Result 2312 states and 3239 transitions. [2022-11-19 07:53:55,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:53:55,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (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 108 [2022-11-19 07:53:55,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:55,691 INFO L225 Difference]: With dead ends: 2312 [2022-11-19 07:53:55,691 INFO L226 Difference]: Without dead ends: 2310 [2022-11-19 07:53:55,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:53:55,693 INFO L413 NwaCegarLoop]: 1529 mSDtfsCounter, 1740 mSDsluCounter, 1529 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1742 SdHoareTripleChecker+Valid, 3058 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:55,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1742 Valid, 3058 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-11-19 07:53:55,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2310 states. [2022-11-19 07:53:56,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2310 to 2310. [2022-11-19 07:53:56,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2310 states, 1344 states have (on average 1.2648809523809523) internal successors, (1700), 1433 states have internal predecessors, (1700), 745 states have call successors, (745), 205 states have call predecessors, (745), 203 states have return successors, (792), 712 states have call predecessors, (792), 743 states have call successors, (792) [2022-11-19 07:53:56,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2310 states to 2310 states and 3237 transitions. [2022-11-19 07:53:56,102 INFO L78 Accepts]: Start accepts. Automaton has 2310 states and 3237 transitions. Word has length 108 [2022-11-19 07:53:56,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:56,103 INFO L495 AbstractCegarLoop]: Abstraction has 2310 states and 3237 transitions. [2022-11-19 07:53:56,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-19 07:53:56,103 INFO L276 IsEmpty]: Start isEmpty. Operand 2310 states and 3237 transitions. [2022-11-19 07:53:56,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-19 07:53:56,105 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:56,105 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:56,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-19 07:53:56,105 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:53:56,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:56,106 INFO L85 PathProgramCache]: Analyzing trace with hash -332196751, now seen corresponding path program 1 times [2022-11-19 07:53:56,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:56,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987199444] [2022-11-19 07:53:56,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:56,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:56,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:56,423 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:53:56,424 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:56,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987199444] [2022-11-19 07:53:56,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987199444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:56,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:53:56,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:53:56,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724922987] [2022-11-19 07:53:56,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:56,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:53:56,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:56,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:53:56,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:53:56,427 INFO L87 Difference]: Start difference. First operand 2310 states and 3237 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, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-19 07:53:59,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:54:01,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:54:01,127 INFO L93 Difference]: Finished difference Result 2310 states and 3237 transitions. [2022-11-19 07:54:01,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:54:01,128 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, (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 113 [2022-11-19 07:54:01,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:54:01,156 INFO L225 Difference]: With dead ends: 2310 [2022-11-19 07:54:01,156 INFO L226 Difference]: Without dead ends: 2308 [2022-11-19 07:54:01,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:54:01,159 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 1734 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1738 SdHoareTripleChecker+Valid, 3054 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:54:01,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1738 Valid, 3054 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-11-19 07:54:01,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2308 states. [2022-11-19 07:54:01,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2308 to 2308. [2022-11-19 07:54:01,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2308 states, 1343 states have (on average 1.2643335815338794) internal successors, (1698), 1431 states have internal predecessors, (1698), 745 states have call successors, (745), 205 states have call predecessors, (745), 203 states have return successors, (792), 712 states have call predecessors, (792), 743 states have call successors, (792) [2022-11-19 07:54:01,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2308 states to 2308 states and 3235 transitions. [2022-11-19 07:54:01,571 INFO L78 Accepts]: Start accepts. Automaton has 2308 states and 3235 transitions. Word has length 113 [2022-11-19 07:54:01,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:54:01,572 INFO L495 AbstractCegarLoop]: Abstraction has 2308 states and 3235 transitions. [2022-11-19 07:54:01,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-19 07:54:01,572 INFO L276 IsEmpty]: Start isEmpty. Operand 2308 states and 3235 transitions. [2022-11-19 07:54:01,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-19 07:54:01,575 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:54:01,575 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:54:01,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-19 07:54:01,577 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:54:01,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:54:01,578 INFO L85 PathProgramCache]: Analyzing trace with hash 990456855, now seen corresponding path program 1 times [2022-11-19 07:54:01,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:54:01,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905757026] [2022-11-19 07:54:01,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:54:01,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:54:01,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:54:01,944 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:54:01,945 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:54:01,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905757026] [2022-11-19 07:54:01,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905757026] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:54:01,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:54:01,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:54:01,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637260876] [2022-11-19 07:54:01,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:54:01,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:54:01,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:54:01,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:54:01,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:54:01,947 INFO L87 Difference]: Start difference. First operand 2308 states and 3235 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-19 07:54:05,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:54:07,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:54:07,257 INFO L93 Difference]: Finished difference Result 2308 states and 3235 transitions. [2022-11-19 07:54:07,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:54:07,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (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 118 [2022-11-19 07:54:07,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:54:07,269 INFO L225 Difference]: With dead ends: 2308 [2022-11-19 07:54:07,270 INFO L226 Difference]: Without dead ends: 2306 [2022-11-19 07:54:07,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:54:07,272 INFO L413 NwaCegarLoop]: 1525 mSDtfsCounter, 1731 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1735 SdHoareTripleChecker+Valid, 3050 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:54:07,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1735 Valid, 3050 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-11-19 07:54:07,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2306 states. [2022-11-19 07:54:07,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2306 to 2306. [2022-11-19 07:54:07,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2306 states, 1342 states have (on average 1.2637853949329358) internal successors, (1696), 1429 states have internal predecessors, (1696), 745 states have call successors, (745), 205 states have call predecessors, (745), 203 states have return successors, (792), 712 states have call predecessors, (792), 743 states have call successors, (792) [2022-11-19 07:54:07,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2306 states to 2306 states and 3233 transitions. [2022-11-19 07:54:07,638 INFO L78 Accepts]: Start accepts. Automaton has 2306 states and 3233 transitions. Word has length 118 [2022-11-19 07:54:07,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:54:07,639 INFO L495 AbstractCegarLoop]: Abstraction has 2306 states and 3233 transitions. [2022-11-19 07:54:07,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-19 07:54:07,639 INFO L276 IsEmpty]: Start isEmpty. Operand 2306 states and 3233 transitions. [2022-11-19 07:54:07,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-11-19 07:54:07,642 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:54:07,642 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:54:07,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-19 07:54:07,643 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:54:07,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:54:07,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1483270443, now seen corresponding path program 1 times [2022-11-19 07:54:07,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:54:07,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273243440] [2022-11-19 07:54:07,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:54:07,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:54:07,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:54:08,302 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:54:08,303 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:54:08,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273243440] [2022-11-19 07:54:08,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273243440] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:54:08,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:54:08,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:54:08,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942864724] [2022-11-19 07:54:08,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:54:08,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:54:08,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:54:08,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:54:08,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:54:08,306 INFO L87 Difference]: Start difference. First operand 2306 states and 3233 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-19 07:54:09,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:54:13,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:54:14,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:54:14,803 INFO L93 Difference]: Finished difference Result 2306 states and 3233 transitions. [2022-11-19 07:54:14,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:54:14,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (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 123 [2022-11-19 07:54:14,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:54:14,813 INFO L225 Difference]: With dead ends: 2306 [2022-11-19 07:54:14,813 INFO L226 Difference]: Without dead ends: 2304 [2022-11-19 07:54:14,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:54:14,815 INFO L413 NwaCegarLoop]: 1523 mSDtfsCounter, 1731 mSDsluCounter, 1523 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1733 SdHoareTripleChecker+Valid, 3046 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:54:14,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1733 Valid, 3046 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-11-19 07:54:14,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2304 states. [2022-11-19 07:54:15,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2304 to 2304. [2022-11-19 07:54:15,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2304 states, 1341 states have (on average 1.2632363907531692) internal successors, (1694), 1427 states have internal predecessors, (1694), 745 states have call successors, (745), 205 states have call predecessors, (745), 203 states have return successors, (792), 712 states have call predecessors, (792), 743 states have call successors, (792) [2022-11-19 07:54:15,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2304 states to 2304 states and 3231 transitions. [2022-11-19 07:54:15,303 INFO L78 Accepts]: Start accepts. Automaton has 2304 states and 3231 transitions. Word has length 123 [2022-11-19 07:54:15,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:54:15,303 INFO L495 AbstractCegarLoop]: Abstraction has 2304 states and 3231 transitions. [2022-11-19 07:54:15,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-19 07:54:15,304 INFO L276 IsEmpty]: Start isEmpty. Operand 2304 states and 3231 transitions. [2022-11-19 07:54:15,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-19 07:54:15,306 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:54:15,307 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:54:15,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-19 07:54:15,307 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:54:15,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:54:15,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1833123701, now seen corresponding path program 1 times [2022-11-19 07:54:15,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:54:15,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226739203] [2022-11-19 07:54:15,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:54:15,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:54:15,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:54:15,658 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:54:15,659 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:54:15,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226739203] [2022-11-19 07:54:15,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226739203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:54:15,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:54:15,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:54:15,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872147055] [2022-11-19 07:54:15,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:54:15,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:54:15,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:54:15,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:54:15,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:54:15,661 INFO L87 Difference]: Start difference. First operand 2304 states and 3231 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-19 07:54:18,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:54:21,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:54:21,544 INFO L93 Difference]: Finished difference Result 2304 states and 3231 transitions. [2022-11-19 07:54:21,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:54:21,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (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 128 [2022-11-19 07:54:21,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:54:21,554 INFO L225 Difference]: With dead ends: 2304 [2022-11-19 07:54:21,554 INFO L226 Difference]: Without dead ends: 2302 [2022-11-19 07:54:21,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:54:21,559 INFO L413 NwaCegarLoop]: 1521 mSDtfsCounter, 1725 mSDsluCounter, 1521 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1729 SdHoareTripleChecker+Valid, 3042 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:54:21,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1729 Valid, 3042 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-11-19 07:54:21,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states. [2022-11-19 07:54:21,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 2302. [2022-11-19 07:54:21,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2302 states, 1340 states have (on average 1.2626865671641792) internal successors, (1692), 1425 states have internal predecessors, (1692), 745 states have call successors, (745), 205 states have call predecessors, (745), 203 states have return successors, (792), 712 states have call predecessors, (792), 743 states have call successors, (792) [2022-11-19 07:54:21,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2302 states to 2302 states and 3229 transitions. [2022-11-19 07:54:21,974 INFO L78 Accepts]: Start accepts. Automaton has 2302 states and 3229 transitions. Word has length 128 [2022-11-19 07:54:21,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:54:21,975 INFO L495 AbstractCegarLoop]: Abstraction has 2302 states and 3229 transitions. [2022-11-19 07:54:21,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-19 07:54:21,975 INFO L276 IsEmpty]: Start isEmpty. Operand 2302 states and 3229 transitions. [2022-11-19 07:54:21,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-19 07:54:21,978 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:54:21,979 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:54:21,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-19 07:54:21,979 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:54:21,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:54:21,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1890970223, now seen corresponding path program 1 times [2022-11-19 07:54:21,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:54:21,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63280820] [2022-11-19 07:54:21,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:54:21,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:54:22,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:54:22,315 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:54:22,315 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:54:22,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63280820] [2022-11-19 07:54:22,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63280820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:54:22,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:54:22,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:54:22,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607625880] [2022-11-19 07:54:22,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:54:22,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:54:22,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:54:22,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:54:22,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:54:22,318 INFO L87 Difference]: Start difference. First operand 2302 states and 3229 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-19 07:54:25,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:54:27,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:54:27,967 INFO L93 Difference]: Finished difference Result 2302 states and 3229 transitions. [2022-11-19 07:54:27,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:54:27,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (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 133 [2022-11-19 07:54:27,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:54:27,974 INFO L225 Difference]: With dead ends: 2302 [2022-11-19 07:54:27,975 INFO L226 Difference]: Without dead ends: 2300 [2022-11-19 07:54:27,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:54:27,976 INFO L413 NwaCegarLoop]: 1519 mSDtfsCounter, 1722 mSDsluCounter, 1519 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1726 SdHoareTripleChecker+Valid, 3038 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:54:27,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1726 Valid, 3038 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-11-19 07:54:27,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2300 states. [2022-11-19 07:54:28,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2300 to 2300. [2022-11-19 07:54:28,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2300 states, 1339 states have (on average 1.2621359223300972) internal successors, (1690), 1423 states have internal predecessors, (1690), 745 states have call successors, (745), 205 states have call predecessors, (745), 203 states have return successors, (792), 712 states have call predecessors, (792), 743 states have call successors, (792) [2022-11-19 07:54:28,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2300 states to 2300 states and 3227 transitions. [2022-11-19 07:54:28,443 INFO L78 Accepts]: Start accepts. Automaton has 2300 states and 3227 transitions. Word has length 133 [2022-11-19 07:54:28,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:54:28,443 INFO L495 AbstractCegarLoop]: Abstraction has 2300 states and 3227 transitions. [2022-11-19 07:54:28,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-19 07:54:28,444 INFO L276 IsEmpty]: Start isEmpty. Operand 2300 states and 3227 transitions. [2022-11-19 07:54:28,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-11-19 07:54:28,447 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:54:28,447 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:54:28,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-19 07:54:28,448 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:54:28,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:54:28,448 INFO L85 PathProgramCache]: Analyzing trace with hash 415986515, now seen corresponding path program 1 times [2022-11-19 07:54:28,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:54:28,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286591962] [2022-11-19 07:54:28,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:54:28,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:54:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:54:28,695 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-11-19 07:54:28,695 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:54:28,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286591962] [2022-11-19 07:54:28,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286591962] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:54:28,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:54:28,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:54:28,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282592381] [2022-11-19 07:54:28,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:54:28,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:54:28,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:54:28,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:54:28,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:54:28,698 INFO L87 Difference]: Start difference. First operand 2300 states and 3227 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-19 07:54:31,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:54:32,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:54:32,668 INFO L93 Difference]: Finished difference Result 4473 states and 6255 transitions. [2022-11-19 07:54:32,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:54:32,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 162 [2022-11-19 07:54:32,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:54:32,679 INFO L225 Difference]: With dead ends: 4473 [2022-11-19 07:54:32,680 INFO L226 Difference]: Without dead ends: 2294 [2022-11-19 07:54:32,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:54:32,689 INFO L413 NwaCegarLoop]: 1515 mSDtfsCounter, 1742 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1744 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:54:32,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1744 Valid, 1515 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 242 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-11-19 07:54:32,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2294 states. [2022-11-19 07:54:33,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2294 to 2294. [2022-11-19 07:54:33,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2294 states, 1334 states have (on average 1.260119940029985) internal successors, (1681), 1417 states have internal predecessors, (1681), 745 states have call successors, (745), 205 states have call predecessors, (745), 203 states have return successors, (792), 712 states have call predecessors, (792), 743 states have call successors, (792) [2022-11-19 07:54:33,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2294 states to 2294 states and 3218 transitions. [2022-11-19 07:54:33,167 INFO L78 Accepts]: Start accepts. Automaton has 2294 states and 3218 transitions. Word has length 162 [2022-11-19 07:54:33,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:54:33,168 INFO L495 AbstractCegarLoop]: Abstraction has 2294 states and 3218 transitions. [2022-11-19 07:54:33,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-19 07:54:33,168 INFO L276 IsEmpty]: Start isEmpty. Operand 2294 states and 3218 transitions. [2022-11-19 07:54:33,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-19 07:54:33,171 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:54:33,171 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:54:33,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-19 07:54:33,172 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:54:33,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:54:33,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1621682280, now seen corresponding path program 1 times [2022-11-19 07:54:33,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:54:33,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069481082] [2022-11-19 07:54:33,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:54:33,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:54:33,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:54:34,171 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-11-19 07:54:34,171 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:54:34,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069481082] [2022-11-19 07:54:34,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069481082] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:54:34,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:54:34,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:54:34,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670406844] [2022-11-19 07:54:34,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:54:34,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:54:34,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:54:34,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:54:34,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:54:34,174 INFO L87 Difference]: Start difference. First operand 2294 states and 3218 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-19 07:54:39,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:54:41,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:54:44,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:54:46,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:54:48,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:54:52,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:54:54,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:54:58,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:54:58,718 INFO L93 Difference]: Finished difference Result 4498 states and 6379 transitions. [2022-11-19 07:54:58,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:54:58,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 167 [2022-11-19 07:54:58,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:54:58,726 INFO L225 Difference]: With dead ends: 4498 [2022-11-19 07:54:58,726 INFO L226 Difference]: Without dead ends: 2313 [2022-11-19 07:54:58,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:54:58,736 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 5 mSDsluCounter, 4305 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5832 SdHoareTripleChecker+Invalid, 1253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:54:58,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5832 Invalid, 1253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1246 Invalid, 7 Unknown, 0 Unchecked, 24.0s Time] [2022-11-19 07:54:58,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2313 states. [2022-11-19 07:54:59,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2313 to 2311. [2022-11-19 07:54:59,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2311 states, 1346 states have (on average 1.2600297176820208) internal successors, (1696), 1433 states have internal predecessors, (1696), 748 states have call successors, (748), 205 states have call predecessors, (748), 205 states have return successors, (799), 715 states have call predecessors, (799), 746 states have call successors, (799) [2022-11-19 07:54:59,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2311 states to 2311 states and 3243 transitions. [2022-11-19 07:54:59,193 INFO L78 Accepts]: Start accepts. Automaton has 2311 states and 3243 transitions. Word has length 167 [2022-11-19 07:54:59,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:54:59,194 INFO L495 AbstractCegarLoop]: Abstraction has 2311 states and 3243 transitions. [2022-11-19 07:54:59,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-19 07:54:59,194 INFO L276 IsEmpty]: Start isEmpty. Operand 2311 states and 3243 transitions. [2022-11-19 07:54:59,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-19 07:54:59,198 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:54:59,198 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:54:59,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-19 07:54:59,198 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:54:59,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:54:59,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1349798547, now seen corresponding path program 1 times [2022-11-19 07:54:59,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:54:59,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908431665] [2022-11-19 07:54:59,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:54:59,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:54:59,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:54:59,567 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:54:59,568 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:54:59,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908431665] [2022-11-19 07:54:59,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908431665] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:54:59,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:54:59,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:54:59,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010408087] [2022-11-19 07:54:59,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:54:59,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:54:59,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:54:59,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:54:59,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:54:59,571 INFO L87 Difference]: Start difference. First operand 2311 states and 3243 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (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) [2022-11-19 07:55:03,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:55:07,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:55:07,150 INFO L93 Difference]: Finished difference Result 4551 states and 6451 transitions. [2022-11-19 07:55:07,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:55:07,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (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 138 [2022-11-19 07:55:07,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:55:07,170 INFO L225 Difference]: With dead ends: 4551 [2022-11-19 07:55:07,170 INFO L226 Difference]: Without dead ends: 4549 [2022-11-19 07:55:07,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:55:07,174 INFO L413 NwaCegarLoop]: 2062 mSDtfsCounter, 1689 mSDsluCounter, 3518 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1693 SdHoareTripleChecker+Valid, 5580 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:55:07,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1693 Valid, 5580 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 823 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-11-19 07:55:07,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4549 states. [2022-11-19 07:55:07,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4549 to 4511. [2022-11-19 07:55:07,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4511 states, 2630 states have (on average 1.2608365019011407) internal successors, (3316), 2791 states have internal predecessors, (3316), 1462 states have call successors, (1462), 406 states have call predecessors, (1462), 407 states have return successors, (1640), 1395 states have call predecessors, (1640), 1460 states have call successors, (1640) [2022-11-19 07:55:07,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4511 states to 4511 states and 6418 transitions. [2022-11-19 07:55:07,979 INFO L78 Accepts]: Start accepts. Automaton has 4511 states and 6418 transitions. Word has length 138 [2022-11-19 07:55:07,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:55:07,979 INFO L495 AbstractCegarLoop]: Abstraction has 4511 states and 6418 transitions. [2022-11-19 07:55:07,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (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) [2022-11-19 07:55:07,980 INFO L276 IsEmpty]: Start isEmpty. Operand 4511 states and 6418 transitions. [2022-11-19 07:55:07,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-19 07:55:07,983 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:55:07,983 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:55:07,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-19 07:55:07,984 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:55:07,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:55:07,984 INFO L85 PathProgramCache]: Analyzing trace with hash -11859419, now seen corresponding path program 1 times [2022-11-19 07:55:07,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:55:07,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875148729] [2022-11-19 07:55:07,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:55:07,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:55:08,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:55:08,353 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2022-11-19 07:55:08,353 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:55:08,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875148729] [2022-11-19 07:55:08,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875148729] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:55:08,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683125594] [2022-11-19 07:55:08,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:55:08,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:55:08,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:55:08,362 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:55:08,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:55:10,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:55:10,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 2239 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:55:10,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:55:10,188 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-19 07:55:10,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:55:10,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683125594] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:55:10,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:55:10,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2022-11-19 07:55:10,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369565025] [2022-11-19 07:55:10,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:55:10,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:55:10,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:55:10,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:55:10,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:55:10,190 INFO L87 Difference]: Start difference. First operand 4511 states and 6418 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-19 07:55:12,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:55:14,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:55:14,621 INFO L93 Difference]: Finished difference Result 8851 states and 12548 transitions. [2022-11-19 07:55:14,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:55:14,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 167 [2022-11-19 07:55:14,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:55:14,642 INFO L225 Difference]: With dead ends: 8851 [2022-11-19 07:55:14,643 INFO L226 Difference]: Without dead ends: 4523 [2022-11-19 07:55:14,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:55:14,659 INFO L413 NwaCegarLoop]: 1522 mSDtfsCounter, 1659 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1661 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:55:14,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1661 Valid, 1572 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 256 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-11-19 07:55:14,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4523 states. [2022-11-19 07:55:15,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4523 to 4521. [2022-11-19 07:55:15,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4521 states, 2631 states have (on average 1.25769669327252) internal successors, (3309), 2792 states have internal predecessors, (3309), 1466 states have call successors, (1466), 412 states have call predecessors, (1466), 413 states have return successors, (1644), 1398 states have call predecessors, (1644), 1464 states have call successors, (1644) [2022-11-19 07:55:15,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4521 states to 4521 states and 6419 transitions. [2022-11-19 07:55:15,616 INFO L78 Accepts]: Start accepts. Automaton has 4521 states and 6419 transitions. Word has length 167 [2022-11-19 07:55:15,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:55:15,617 INFO L495 AbstractCegarLoop]: Abstraction has 4521 states and 6419 transitions. [2022-11-19 07:55:15,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-19 07:55:15,618 INFO L276 IsEmpty]: Start isEmpty. Operand 4521 states and 6419 transitions. [2022-11-19 07:55:15,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-19 07:55:15,621 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:55:15,621 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:55:15,635 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 07:55:15,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-19 07:55:15,835 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:55:15,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:55:15,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1728460971, now seen corresponding path program 1 times [2022-11-19 07:55:15,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:55:15,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144881604] [2022-11-19 07:55:15,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:55:15,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:55:15,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:55:16,173 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:55:16,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:55:16,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144881604] [2022-11-19 07:55:16,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144881604] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:55:16,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:55:16,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:55:16,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762562543] [2022-11-19 07:55:16,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:55:16,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:55:16,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:55:16,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:55:16,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:55:16,176 INFO L87 Difference]: Start difference. First operand 4521 states and 6419 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (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) [2022-11-19 07:55:19,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:55:22,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:55:22,460 INFO L93 Difference]: Finished difference Result 4521 states and 6419 transitions. [2022-11-19 07:55:22,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:55:22,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (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 143 [2022-11-19 07:55:22,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:55:22,475 INFO L225 Difference]: With dead ends: 4521 [2022-11-19 07:55:22,475 INFO L226 Difference]: Without dead ends: 4519 [2022-11-19 07:55:22,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:55:22,478 INFO L413 NwaCegarLoop]: 1507 mSDtfsCounter, 1708 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1712 SdHoareTripleChecker+Valid, 3014 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:55:22,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1712 Valid, 3014 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-19 07:55:22,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4519 states. [2022-11-19 07:55:23,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4519 to 4519. [2022-11-19 07:55:23,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4519 states, 2630 states have (on average 1.2574144486692016) internal successors, (3307), 2790 states have internal predecessors, (3307), 1466 states have call successors, (1466), 412 states have call predecessors, (1466), 413 states have return successors, (1644), 1398 states have call predecessors, (1644), 1464 states have call successors, (1644) [2022-11-19 07:55:23,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4519 states to 4519 states and 6417 transitions. [2022-11-19 07:55:23,227 INFO L78 Accepts]: Start accepts. Automaton has 4519 states and 6417 transitions. Word has length 143 [2022-11-19 07:55:23,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:55:23,228 INFO L495 AbstractCegarLoop]: Abstraction has 4519 states and 6417 transitions. [2022-11-19 07:55:23,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (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) [2022-11-19 07:55:23,228 INFO L276 IsEmpty]: Start isEmpty. Operand 4519 states and 6417 transitions. [2022-11-19 07:55:23,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-19 07:55:23,232 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:55:23,232 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:55:23,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-19 07:55:23,232 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:55:23,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:55:23,233 INFO L85 PathProgramCache]: Analyzing trace with hash -964525132, now seen corresponding path program 1 times [2022-11-19 07:55:23,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:55:23,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412894042] [2022-11-19 07:55:23,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:55:23,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:55:23,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:55:23,564 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:55:23,564 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:55:23,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412894042] [2022-11-19 07:55:23,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412894042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:55:23,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:55:23,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:55:23,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282549590] [2022-11-19 07:55:23,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:55:23,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:55:23,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:55:23,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:55:23,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:55:23,567 INFO L87 Difference]: Start difference. First operand 4519 states and 6417 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-19 07:55:26,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:55:32,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:55:32,633 INFO L93 Difference]: Finished difference Result 8886 states and 12829 transitions. [2022-11-19 07:55:32,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:55:32,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 148 [2022-11-19 07:55:32,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:55:32,656 INFO L225 Difference]: With dead ends: 8886 [2022-11-19 07:55:32,657 INFO L226 Difference]: Without dead ends: 8738 [2022-11-19 07:55:32,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:55:32,664 INFO L413 NwaCegarLoop]: 2049 mSDtfsCounter, 1662 mSDsluCounter, 3499 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1664 SdHoareTripleChecker+Valid, 5548 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:55:32,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1664 Valid, 5548 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 823 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-11-19 07:55:32,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8738 states. [2022-11-19 07:55:34,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8738 to 8711. [2022-11-19 07:55:34,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8711 states, 5089 states have (on average 1.2599724896836313) internal successors, (6412), 5387 states have internal predecessors, (6412), 2816 states have call successors, (2816), 794 states have call predecessors, (2816), 796 states have return successors, (3395), 2687 states have call predecessors, (3395), 2812 states have call successors, (3395) [2022-11-19 07:55:34,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8711 states to 8711 states and 12623 transitions. [2022-11-19 07:55:34,591 INFO L78 Accepts]: Start accepts. Automaton has 8711 states and 12623 transitions. Word has length 148 [2022-11-19 07:55:34,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:55:34,592 INFO L495 AbstractCegarLoop]: Abstraction has 8711 states and 12623 transitions. [2022-11-19 07:55:34,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-19 07:55:34,592 INFO L276 IsEmpty]: Start isEmpty. Operand 8711 states and 12623 transitions. [2022-11-19 07:55:34,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-19 07:55:34,595 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:55:34,595 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:55:34,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-19 07:55:34,595 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:55:34,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:55:34,596 INFO L85 PathProgramCache]: Analyzing trace with hash -190126566, now seen corresponding path program 1 times [2022-11-19 07:55:34,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:55:34,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381937445] [2022-11-19 07:55:34,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:55:34,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:55:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:55:34,820 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-11-19 07:55:34,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:55:34,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381937445] [2022-11-19 07:55:34,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381937445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:55:34,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:55:34,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:55:34,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976270524] [2022-11-19 07:55:34,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:55:34,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:55:34,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:55:34,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:55:34,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:55:34,823 INFO L87 Difference]: Start difference. First operand 8711 states and 12623 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-19 07:55:38,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:55:41,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:55:41,879 INFO L93 Difference]: Finished difference Result 18707 states and 27390 transitions. [2022-11-19 07:55:41,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:55:41,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 183 [2022-11-19 07:55:41,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:55:41,913 INFO L225 Difference]: With dead ends: 18707 [2022-11-19 07:55:41,913 INFO L226 Difference]: Without dead ends: 10178 [2022-11-19 07:55:41,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:55:41,956 INFO L413 NwaCegarLoop]: 1771 mSDtfsCounter, 134 mSDsluCounter, 1557 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 3328 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:55:41,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 3328 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 524 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-11-19 07:55:41,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10178 states. [2022-11-19 07:55:43,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10178 to 8712. [2022-11-19 07:55:43,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8712 states, 5090 states have (on average 1.2599214145383104) internal successors, (6413), 5388 states have internal predecessors, (6413), 2816 states have call successors, (2816), 794 states have call predecessors, (2816), 796 states have return successors, (3395), 2687 states have call predecessors, (3395), 2812 states have call successors, (3395) [2022-11-19 07:55:43,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8712 states to 8712 states and 12624 transitions. [2022-11-19 07:55:43,685 INFO L78 Accepts]: Start accepts. Automaton has 8712 states and 12624 transitions. Word has length 183 [2022-11-19 07:55:43,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:55:43,685 INFO L495 AbstractCegarLoop]: Abstraction has 8712 states and 12624 transitions. [2022-11-19 07:55:43,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-19 07:55:43,686 INFO L276 IsEmpty]: Start isEmpty. Operand 8712 states and 12624 transitions. [2022-11-19 07:55:43,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-11-19 07:55:43,689 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:55:43,689 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:55:43,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-19 07:55:43,690 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:55:43,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:55:43,690 INFO L85 PathProgramCache]: Analyzing trace with hash 240700561, now seen corresponding path program 1 times [2022-11-19 07:55:43,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:55:43,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490575148] [2022-11-19 07:55:43,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:55:43,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:55:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:55:44,598 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2022-11-19 07:55:44,598 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:55:44,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490575148] [2022-11-19 07:55:44,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490575148] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:55:44,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:55:44,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:55:44,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246205432] [2022-11-19 07:55:44,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:55:44,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:55:44,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:55:44,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:55:44,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:55:44,601 INFO L87 Difference]: Start difference. First operand 8712 states and 12624 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-19 07:55:48,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:55:51,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:55:51,984 INFO L93 Difference]: Finished difference Result 8770 states and 12657 transitions. [2022-11-19 07:55:51,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:55:51,985 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 208 [2022-11-19 07:55:51,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:55:52,016 INFO L225 Difference]: With dead ends: 8770 [2022-11-19 07:55:52,016 INFO L226 Difference]: Without dead ends: 8768 [2022-11-19 07:55:52,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:55:52,022 INFO L413 NwaCegarLoop]: 1504 mSDtfsCounter, 1646 mSDsluCounter, 3043 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1649 SdHoareTripleChecker+Valid, 4547 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:55:52,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1649 Valid, 4547 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 743 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-11-19 07:55:52,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8768 states. [2022-11-19 07:55:53,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8768 to 8768. [2022-11-19 07:55:53,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8768 states, 5122 states have (on average 1.2567356501366653) internal successors, (6437), 5419 states have internal predecessors, (6437), 2816 states have call successors, (2816), 819 states have call predecessors, (2816), 821 states have return successors, (3395), 2687 states have call predecessors, (3395), 2812 states have call successors, (3395) [2022-11-19 07:55:53,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8768 states to 8768 states and 12648 transitions. [2022-11-19 07:55:53,717 INFO L78 Accepts]: Start accepts. Automaton has 8768 states and 12648 transitions. Word has length 208 [2022-11-19 07:55:53,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:55:53,718 INFO L495 AbstractCegarLoop]: Abstraction has 8768 states and 12648 transitions. [2022-11-19 07:55:53,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-19 07:55:53,718 INFO L276 IsEmpty]: Start isEmpty. Operand 8768 states and 12648 transitions. [2022-11-19 07:55:53,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-11-19 07:55:53,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:55:53,721 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:55:53,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-19 07:55:53,721 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:55:53,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:55:53,722 INFO L85 PathProgramCache]: Analyzing trace with hash -400385458, now seen corresponding path program 1 times [2022-11-19 07:55:53,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:55:53,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776952426] [2022-11-19 07:55:53,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:55:53,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:55:53,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:55:54,165 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-11-19 07:55:54,165 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:55:54,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776952426] [2022-11-19 07:55:54,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776952426] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:55:54,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:55:54,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:55:54,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811076887] [2022-11-19 07:55:54,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:55:54,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:55:54,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:55:54,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:55:54,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:55:54,168 INFO L87 Difference]: Start difference. First operand 8768 states and 12648 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-19 07:55:58,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:56:04,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:56:04,042 INFO L93 Difference]: Finished difference Result 9181 states and 13112 transitions. [2022-11-19 07:56:04,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:56:04,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 177 [2022-11-19 07:56:04,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:56:04,063 INFO L225 Difference]: With dead ends: 9181 [2022-11-19 07:56:04,063 INFO L226 Difference]: Without dead ends: 9179 [2022-11-19 07:56:04,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:56:04,066 INFO L413 NwaCegarLoop]: 2358 mSDtfsCounter, 1589 mSDsluCounter, 6242 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1592 SdHoareTripleChecker+Valid, 8600 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:56:04,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1592 Valid, 8600 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1291 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2022-11-19 07:56:04,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9179 states. [2022-11-19 07:56:05,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9179 to 8788. [2022-11-19 07:56:05,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8788 states, 5134 states have (on average 1.2561355668095053) internal successors, (6449), 5435 states have internal predecessors, (6449), 2820 states have call successors, (2820), 823 states have call predecessors, (2820), 825 states have return successors, (3399), 2687 states have call predecessors, (3399), 2816 states have call successors, (3399) [2022-11-19 07:56:05,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8788 states to 8788 states and 12668 transitions. [2022-11-19 07:56:05,894 INFO L78 Accepts]: Start accepts. Automaton has 8788 states and 12668 transitions. Word has length 177 [2022-11-19 07:56:05,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:56:05,894 INFO L495 AbstractCegarLoop]: Abstraction has 8788 states and 12668 transitions. [2022-11-19 07:56:05,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-19 07:56:05,895 INFO L276 IsEmpty]: Start isEmpty. Operand 8788 states and 12668 transitions. [2022-11-19 07:56:05,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-19 07:56:05,897 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:56:05,898 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:56:05,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-19 07:56:05,898 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:56:05,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:56:05,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1891467414, now seen corresponding path program 1 times [2022-11-19 07:56:05,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:56:05,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978608921] [2022-11-19 07:56:05,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:56:05,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:56:05,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:56:06,170 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-11-19 07:56:06,170 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:56:06,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978608921] [2022-11-19 07:56:06,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978608921] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:56:06,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:56:06,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:56:06,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43555979] [2022-11-19 07:56:06,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:56:06,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:56:06,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:56:06,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:56:06,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:56:06,173 INFO L87 Difference]: Start difference. First operand 8788 states and 12668 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-19 07:56:09,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:56:13,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:56:13,721 INFO L93 Difference]: Finished difference Result 18134 states and 27009 transitions. [2022-11-19 07:56:13,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:56:13,722 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), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 186 [2022-11-19 07:56:13,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:56:13,744 INFO L225 Difference]: With dead ends: 18134 [2022-11-19 07:56:13,744 INFO L226 Difference]: Without dead ends: 9532 [2022-11-19 07:56:13,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:56:13,768 INFO L413 NwaCegarLoop]: 1548 mSDtfsCounter, 95 mSDsluCounter, 3039 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 4587 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:56:13,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 4587 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 734 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-11-19 07:56:13,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9532 states. [2022-11-19 07:56:15,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9532 to 8804. [2022-11-19 07:56:15,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8804 states, 5150 states have (on average 1.2553398058252427) internal successors, (6465), 5451 states have internal predecessors, (6465), 2820 states have call successors, (2820), 823 states have call predecessors, (2820), 825 states have return successors, (3399), 2687 states have call predecessors, (3399), 2816 states have call successors, (3399) [2022-11-19 07:56:15,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8804 states to 8804 states and 12684 transitions. [2022-11-19 07:56:15,279 INFO L78 Accepts]: Start accepts. Automaton has 8804 states and 12684 transitions. Word has length 186 [2022-11-19 07:56:15,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:56:15,279 INFO L495 AbstractCegarLoop]: Abstraction has 8804 states and 12684 transitions. [2022-11-19 07:56:15,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-19 07:56:15,280 INFO L276 IsEmpty]: Start isEmpty. Operand 8804 states and 12684 transitions. [2022-11-19 07:56:15,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-11-19 07:56:15,282 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:56:15,282 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 8, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:56:15,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-19 07:56:15,282 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:56:15,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:56:15,283 INFO L85 PathProgramCache]: Analyzing trace with hash -392597437, now seen corresponding path program 1 times [2022-11-19 07:56:15,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:56:15,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23035859] [2022-11-19 07:56:15,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:56:15,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:56:15,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:56:16,316 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2022-11-19 07:56:16,316 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:56:16,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23035859] [2022-11-19 07:56:16,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23035859] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:56:16,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187317835] [2022-11-19 07:56:16,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:56:16,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:56:16,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:56:16,321 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:56:16,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:56:18,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:56:18,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 2429 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 07:56:18,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:56:18,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-11-19 07:56:18,236 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2022-11-19 07:56:18,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:56:18,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187317835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:56:18,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:56:18,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-11-19 07:56:18,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710589319] [2022-11-19 07:56:18,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:56:18,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:56:18,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:56:18,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:56:18,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-19 07:56:18,239 INFO L87 Difference]: Start difference. First operand 8804 states and 12684 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2022-11-19 07:56:22,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:56:24,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:56:26,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:56:28,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:56:30,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:56:33,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:56:35,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:56:41,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:56:41,160 INFO L93 Difference]: Finished difference Result 17674 states and 26253 transitions. [2022-11-19 07:56:41,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:56:41,166 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 227 [2022-11-19 07:56:41,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:56:41,199 INFO L225 Difference]: With dead ends: 17674 [2022-11-19 07:56:41,200 INFO L226 Difference]: Without dead ends: 9056 [2022-11-19 07:56:41,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-11-19 07:56:41,233 INFO L413 NwaCegarLoop]: 1521 mSDtfsCounter, 28 mSDsluCounter, 4325 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 5846 SdHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:56:41,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 5846 Invalid, 1254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1250 Invalid, 3 Unknown, 0 Unchecked, 21.1s Time] [2022-11-19 07:56:41,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9056 states. [2022-11-19 07:56:42,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9056 to 8868. [2022-11-19 07:56:42,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8868 states, 5206 states have (on average 1.2572032270457165) internal successors, (6545), 5507 states have internal predecessors, (6545), 2828 states have call successors, (2828), 823 states have call predecessors, (2828), 825 states have return successors, (3407), 2695 states have call predecessors, (3407), 2824 states have call successors, (3407) [2022-11-19 07:56:43,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8868 states to 8868 states and 12780 transitions. [2022-11-19 07:56:43,014 INFO L78 Accepts]: Start accepts. Automaton has 8868 states and 12780 transitions. Word has length 227 [2022-11-19 07:56:43,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:56:43,014 INFO L495 AbstractCegarLoop]: Abstraction has 8868 states and 12780 transitions. [2022-11-19 07:56:43,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2022-11-19 07:56:43,015 INFO L276 IsEmpty]: Start isEmpty. Operand 8868 states and 12780 transitions. [2022-11-19 07:56:43,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-11-19 07:56:43,019 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:56:43,019 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 8, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:56:43,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:56:43,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:56:43,233 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:56:43,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:56:43,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1602833847, now seen corresponding path program 1 times [2022-11-19 07:56:43,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:56:43,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121456767] [2022-11-19 07:56:43,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:56:43,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:56:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:56:44,197 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2022-11-19 07:56:44,198 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:56:44,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121456767] [2022-11-19 07:56:44,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121456767] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:56:44,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623696471] [2022-11-19 07:56:44,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:56:44,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:56:44,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:56:44,203 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:56:44,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:56:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:56:45,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 2436 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 07:56:45,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:56:46,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2022-11-19 07:56:46,117 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2022-11-19 07:56:46,117 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:56:46,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623696471] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:56:46,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:56:46,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-11-19 07:56:46,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238164208] [2022-11-19 07:56:46,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:56:46,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:56:46,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:56:46,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:56:46,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-19 07:56:46,120 INFO L87 Difference]: Start difference. First operand 8868 states and 12780 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2022-11-19 07:56:50,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:56:52,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:56:55,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:56:58,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:57:00,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:57:05,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:57:05,656 INFO L93 Difference]: Finished difference Result 17754 states and 26365 transitions. [2022-11-19 07:57:05,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:57:05,657 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 228 [2022-11-19 07:57:05,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:57:05,687 INFO L225 Difference]: With dead ends: 17754 [2022-11-19 07:57:05,687 INFO L226 Difference]: Without dead ends: 9072 [2022-11-19 07:57:05,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-11-19 07:57:05,724 INFO L413 NwaCegarLoop]: 1528 mSDtfsCounter, 32 mSDsluCounter, 4329 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 5857 SdHoareTripleChecker+Invalid, 1257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:57:05,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 5857 Invalid, 1257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1253 Invalid, 3 Unknown, 0 Unchecked, 17.5s Time] [2022-11-19 07:57:05,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9072 states. [2022-11-19 07:57:07,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9072 to 8868. [2022-11-19 07:57:07,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8868 states, 5206 states have (on average 1.255666538609297) internal successors, (6537), 5507 states have internal predecessors, (6537), 2828 states have call successors, (2828), 823 states have call predecessors, (2828), 825 states have return successors, (3407), 2695 states have call predecessors, (3407), 2824 states have call successors, (3407) [2022-11-19 07:57:07,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8868 states to 8868 states and 12772 transitions. [2022-11-19 07:57:07,503 INFO L78 Accepts]: Start accepts. Automaton has 8868 states and 12772 transitions. Word has length 228 [2022-11-19 07:57:07,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:57:07,504 INFO L495 AbstractCegarLoop]: Abstraction has 8868 states and 12772 transitions. [2022-11-19 07:57:07,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2022-11-19 07:57:07,505 INFO L276 IsEmpty]: Start isEmpty. Operand 8868 states and 12772 transitions. [2022-11-19 07:57:07,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-11-19 07:57:07,509 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:57:07,509 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 8, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:57:07,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:57:07,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:57:07,725 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:57:07,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:57:07,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1593493996, now seen corresponding path program 1 times [2022-11-19 07:57:07,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:57:07,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844504451] [2022-11-19 07:57:07,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:57:07,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:57:07,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:57:08,751 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2022-11-19 07:57:08,752 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:57:08,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844504451] [2022-11-19 07:57:08,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844504451] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:57:08,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792066147] [2022-11-19 07:57:08,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:57:08,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:57:08,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:57:08,754 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:57:08,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:57:10,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:57:10,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 2438 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-19 07:57:10,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:57:10,685 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2022-11-19 07:57:10,686 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:57:10,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792066147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:57:10,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:57:10,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-11-19 07:57:10,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743574276] [2022-11-19 07:57:10,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:57:10,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:57:10,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:57:10,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:57:10,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-19 07:57:10,688 INFO L87 Difference]: Start difference. First operand 8868 states and 12772 transitions. Second operand has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 4 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-19 07:57:15,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:57:20,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:57:20,172 INFO L93 Difference]: Finished difference Result 15769 states and 22420 transitions. [2022-11-19 07:57:20,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:57:20,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 4 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 229 [2022-11-19 07:57:20,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:57:20,207 INFO L225 Difference]: With dead ends: 15769 [2022-11-19 07:57:20,208 INFO L226 Difference]: Without dead ends: 10260 [2022-11-19 07:57:20,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-11-19 07:57:20,222 INFO L413 NwaCegarLoop]: 1554 mSDtfsCounter, 233 mSDsluCounter, 4603 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 55 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 6157 SdHoareTripleChecker+Invalid, 1056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:57:20,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 6157 Invalid, 1056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1000 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2022-11-19 07:57:20,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10260 states. [2022-11-19 07:57:22,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10260 to 9800. [2022-11-19 07:57:22,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9800 states, 5862 states have (on average 1.2659501876492665) internal successors, (7421), 6211 states have internal predecessors, (7421), 3080 states have call successors, (3080), 831 states have call predecessors, (3080), 849 states have return successors, (3691), 2939 states have call predecessors, (3691), 3076 states have call successors, (3691) [2022-11-19 07:57:22,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9800 states to 9800 states and 14192 transitions. [2022-11-19 07:57:22,137 INFO L78 Accepts]: Start accepts. Automaton has 9800 states and 14192 transitions. Word has length 229 [2022-11-19 07:57:22,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:57:22,138 INFO L495 AbstractCegarLoop]: Abstraction has 9800 states and 14192 transitions. [2022-11-19 07:57:22,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 4 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-19 07:57:22,138 INFO L276 IsEmpty]: Start isEmpty. Operand 9800 states and 14192 transitions. [2022-11-19 07:57:22,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-11-19 07:57:22,141 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:57:22,141 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:57:22,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-19 07:57:22,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-11-19 07:57:22,342 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:57:22,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:57:22,343 INFO L85 PathProgramCache]: Analyzing trace with hash -2100892206, now seen corresponding path program 1 times [2022-11-19 07:57:22,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:57:22,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316880706] [2022-11-19 07:57:22,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:57:22,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:57:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:57:22,826 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2022-11-19 07:57:22,826 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:57:22,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316880706] [2022-11-19 07:57:22,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316880706] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:57:22,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:57:22,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:57:22,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148686881] [2022-11-19 07:57:22,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:57:22,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:57:22,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:57:22,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:57:22,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:57:22,828 INFO L87 Difference]: Start difference. First operand 9800 states and 14192 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (45), 3 states have call predecessors, (45), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-19 07:57:27,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:57:31,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:57:31,862 INFO L93 Difference]: Finished difference Result 9800 states and 14192 transitions. [2022-11-19 07:57:31,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:57:31,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (45), 3 states have call predecessors, (45), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 237 [2022-11-19 07:57:31,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:57:31,899 INFO L225 Difference]: With dead ends: 9800 [2022-11-19 07:57:31,899 INFO L226 Difference]: Without dead ends: 9798 [2022-11-19 07:57:31,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:57:31,907 INFO L413 NwaCegarLoop]: 1503 mSDtfsCounter, 39 mSDsluCounter, 4473 mSDsCounter, 0 mSdLazyCounter, 970 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 5976 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 970 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:57:31,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 5976 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 970 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-11-19 07:57:31,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9798 states. [2022-11-19 07:57:34,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9798 to 9798. [2022-11-19 07:57:34,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9798 states, 5861 states have (on average 1.2646306091110733) internal successors, (7412), 6209 states have internal predecessors, (7412), 3080 states have call successors, (3080), 831 states have call predecessors, (3080), 849 states have return successors, (3691), 2939 states have call predecessors, (3691), 3076 states have call successors, (3691) [2022-11-19 07:57:34,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9798 states to 9798 states and 14183 transitions. [2022-11-19 07:57:34,080 INFO L78 Accepts]: Start accepts. Automaton has 9798 states and 14183 transitions. Word has length 237 [2022-11-19 07:57:34,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:57:34,081 INFO L495 AbstractCegarLoop]: Abstraction has 9798 states and 14183 transitions. [2022-11-19 07:57:34,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (45), 3 states have call predecessors, (45), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-19 07:57:34,081 INFO L276 IsEmpty]: Start isEmpty. Operand 9798 states and 14183 transitions. [2022-11-19 07:57:34,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-11-19 07:57:34,084 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:57:34,084 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 8, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:57:34,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-19 07:57:34,085 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 07:57:34,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:57:34,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1717803787, now seen corresponding path program 1 times [2022-11-19 07:57:34,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:57:34,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519299753] [2022-11-19 07:57:34,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:57:34,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:57:34,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:57:35,117 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2022-11-19 07:57:35,117 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:57:35,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519299753] [2022-11-19 07:57:35,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519299753] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:57:35,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754103812] [2022-11-19 07:57:35,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:57:35,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:57:35,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:57:35,120 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:57:35,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 07:57:36,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:57:36,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 2461 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-19 07:57:36,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:57:37,118 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 108 proven. 2 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2022-11-19 07:57:37,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:57:37,574 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 6 proven. 26 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2022-11-19 07:57:37,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754103812] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:57:37,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [168682729] [2022-11-19 07:57:37,605 INFO L159 IcfgInterpreter]: Started Sifa with 144 locations of interest [2022-11-19 07:57:37,606 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:57:37,610 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:57:37,617 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:57:37,617 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:57:39,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-19 07:57:39,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-19 07:57:39,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-19 07:57:39,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-19 07:57:39,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-19 07:57:40,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:40,496 INFO L217 Elim1Store]: Index analysis took 175 ms [2022-11-19 07:57:40,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 74 select indices, 74 select index equivalence classes, 962 disjoint index pairs (out of 2701 index pairs), introduced 74 new quantified variables, introduced 0 case distinctions, treesize of input 728 treesize of output 971 [2022-11-19 07:57:41,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,164 INFO L217 Elim1Store]: Index analysis took 132 ms [2022-11-19 07:57:41,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 74 select indices, 74 select index equivalence classes, 907 disjoint index pairs (out of 2701 index pairs), introduced 74 new quantified variables, introduced 0 case distinctions, treesize of input 680 treesize of output 883 [2022-11-19 07:57:41,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:41,636 INFO L217 Elim1Store]: Index analysis took 101 ms [2022-11-19 07:57:41,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 74 select indices, 74 select index equivalence classes, 907 disjoint index pairs (out of 2701 index pairs), introduced 74 new quantified variables, introduced 0 case distinctions, treesize of input 680 treesize of output 883 [2022-11-19 07:57:42,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-19 07:57:42,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:42,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,062 INFO L217 Elim1Store]: Index analysis took 177 ms [2022-11-19 07:57:43,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 74 select indices, 74 select index equivalence classes, 943 disjoint index pairs (out of 2701 index pairs), introduced 74 new quantified variables, introduced 0 case distinctions, treesize of input 718 treesize of output 953 [2022-11-19 07:57:43,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:43,887 INFO L217 Elim1Store]: Index analysis took 134 ms [2022-11-19 07:57:44,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 74 select indices, 74 select index equivalence classes, 907 disjoint index pairs (out of 2701 index pairs), introduced 74 new quantified variables, introduced 0 case distinctions, treesize of input 680 treesize of output 883 [2022-11-19 07:57:44,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,456 INFO L217 Elim1Store]: Index analysis took 141 ms [2022-11-19 07:57:44,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 74 select indices, 74 select index equivalence classes, 907 disjoint index pairs (out of 2701 index pairs), introduced 74 new quantified variables, introduced 0 case distinctions, treesize of input 680 treesize of output 883 [2022-11-19 07:57:44,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:44,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:45,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:45,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:45,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:45,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:45,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:45,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:45,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:45,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:45,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:45,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:45,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:45,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:45,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:45,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:45,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:45,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:45,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:45,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:45,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:45,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:45,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:45,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:45,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:45,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:45,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:45,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:45,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:57:45,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 74 select indices, 74 select index equivalence classes, 908 disjoint index pairs (out of 2701 index pairs), introduced 74 new quantified variables, introduced 0 case distinctions, treesize of input 685 treesize of output 892 [2022-11-19 07:57:45,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 78 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 1149 treesize of output 952 [2022-11-19 07:57:46,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-19 07:57:46,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-19 07:57:46,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-19 07:57:46,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-19 07:57:46,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-19 07:57:46,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-19 07:57:46,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2022-11-19 08:00:27,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-19 08:00:27,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-11-19 08:00:27,757 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Maybe an infinite loop at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:345) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:285) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostconditionCall(PredicateTransformer.java:157) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.postCall(SymbolicTools.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:218) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:207) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-19 08:00:27,764 INFO L158 Benchmark]: Toolchain (without parser) took 526004.98ms. Allocated memory was 92.3MB in the beginning and 2.8GB in the end (delta: 2.7GB). Free memory was 59.8MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. [2022-11-19 08:00:27,764 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 92.3MB. Free memory was 71.7MB in the beginning and 71.6MB in the end (delta: 102.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:00:27,764 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4882.49ms. Allocated memory was 92.3MB in the beginning and 165.7MB in the end (delta: 73.4MB). Free memory was 59.8MB in the beginning and 73.5MB in the end (delta: -13.7MB). Peak memory consumption was 99.8MB. Max. memory is 16.1GB. [2022-11-19 08:00:27,766 INFO L158 Benchmark]: Boogie Procedure Inliner took 541.26ms. Allocated memory was 165.7MB in the beginning and 241.2MB in the end (delta: 75.5MB). Free memory was 73.5MB in the beginning and 98.3MB in the end (delta: -24.8MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. [2022-11-19 08:00:27,767 INFO L158 Benchmark]: Boogie Preprocessor took 610.87ms. Allocated memory is still 241.2MB. Free memory was 98.3MB in the beginning and 74.2MB in the end (delta: 24.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-11-19 08:00:27,767 INFO L158 Benchmark]: RCFGBuilder took 18580.41ms. Allocated memory was 241.2MB in the beginning and 947.9MB in the end (delta: 706.7MB). Free memory was 74.2MB in the beginning and 495.9MB in the end (delta: -421.7MB). Peak memory consumption was 553.1MB. Max. memory is 16.1GB. [2022-11-19 08:00:27,767 INFO L158 Benchmark]: TraceAbstraction took 501379.12ms. Allocated memory was 947.9MB in the beginning and 2.8GB in the end (delta: 1.8GB). Free memory was 494.9MB in the beginning and 2.4GB in the end (delta: -1.9GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2022-11-19 08:00:27,770 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 92.3MB. Free memory was 71.7MB in the beginning and 71.6MB in the end (delta: 102.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4882.49ms. Allocated memory was 92.3MB in the beginning and 165.7MB in the end (delta: 73.4MB). Free memory was 59.8MB in the beginning and 73.5MB in the end (delta: -13.7MB). Peak memory consumption was 99.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 541.26ms. Allocated memory was 165.7MB in the beginning and 241.2MB in the end (delta: 75.5MB). Free memory was 73.5MB in the beginning and 98.3MB in the end (delta: -24.8MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 610.87ms. Allocated memory is still 241.2MB. Free memory was 98.3MB in the beginning and 74.2MB in the end (delta: 24.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * RCFGBuilder took 18580.41ms. Allocated memory was 241.2MB in the beginning and 947.9MB in the end (delta: 706.7MB). Free memory was 74.2MB in the beginning and 495.9MB in the end (delta: -421.7MB). Peak memory consumption was 553.1MB. Max. memory is 16.1GB. * TraceAbstraction took 501379.12ms. Allocated memory was 947.9MB in the beginning and 2.8GB in the end (delta: 1.8GB). Free memory was 494.9MB in the beginning and 2.4GB in the end (delta: -1.9GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Maybe an infinite loop de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Maybe an infinite loop: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-19 08:00:27,983 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-11-19 08:00:27,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS --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 81dbe8069ce4dfce1c2f5ecd6b7071863ebf3cc1894dcf2fe187946b9d9f58fb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:00:30,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:00:30,231 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:00:30,250 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:00:30,251 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:00:30,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:00:30,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:00:30,256 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:00:30,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:00:30,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:00:30,260 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:00:30,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:00:30,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:00:30,263 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:00:30,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:00:30,266 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:00:30,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:00:30,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:00:30,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:00:30,272 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:00:30,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:00:30,274 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:00:30,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:00:30,277 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:00:30,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:00:30,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:00:30,281 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:00:30,282 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:00:30,283 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:00:30,284 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:00:30,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:00:30,285 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:00:30,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:00:30,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:00:30,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:00:30,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:00:30,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:00:30,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:00:30,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:00:30,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:00:30,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:00:30,293 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-19 08:00:30,317 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:00:30,317 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:00:30,318 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:00:30,318 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:00:30,319 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:00:30,319 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:00:30,319 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:00:30,319 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:00:30,320 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:00:30,320 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:00:30,320 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:00:30,320 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:00:30,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:00:30,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:00:30,321 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:00:30,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:00:30,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:00:30,322 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 08:00:30,322 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 08:00:30,323 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 08:00:30,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:00:30,323 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:00:30,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:00:30,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:00:30,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 08:00:30,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:00:30,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:00:30,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:00:30,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:00:30,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:00:30,325 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 08:00:30,325 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 08:00:30,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:00:30,326 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:00:30,326 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 08:00:30,326 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81dbe8069ce4dfce1c2f5ecd6b7071863ebf3cc1894dcf2fe187946b9d9f58fb [2022-11-19 08:00:30,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:00:30,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:00:30,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:00:30,737 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:00:30,738 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:00:30,740 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i [2022-11-19 08:00:30,817 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/data/d765f3705/014b297bca6d4d919d0de3e418b8c5da/FLAG6ade9b0c2 [2022-11-19 08:00:31,957 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:00:31,957 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i [2022-11-19 08:00:32,017 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/data/d765f3705/014b297bca6d4d919d0de3e418b8c5da/FLAG6ade9b0c2 [2022-11-19 08:00:32,234 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/data/d765f3705/014b297bca6d4d919d0de3e418b8c5da [2022-11-19 08:00:32,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:00:32,238 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:00:32,239 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:00:32,239 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:00:32,243 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:00:32,244 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:32" (1/1) ... [2022-11-19 08:00:32,245 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a808f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:32, skipping insertion in model container [2022-11-19 08:00:32,245 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:32" (1/1) ... [2022-11-19 08:00:32,254 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:00:32,415 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:00:36,215 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375016,375029] [2022-11-19 08:00:36,219 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375161,375174] [2022-11-19 08:00:36,220 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375307,375320] [2022-11-19 08:00:36,221 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375472,375485] [2022-11-19 08:00:36,221 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375630,375643] [2022-11-19 08:00:36,222 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375788,375801] [2022-11-19 08:00:36,222 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375946,375959] [2022-11-19 08:00:36,223 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376106,376119] [2022-11-19 08:00:36,223 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376265,376278] [2022-11-19 08:00:36,224 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376404,376417] [2022-11-19 08:00:36,225 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376546,376559] [2022-11-19 08:00:36,225 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376695,376708] [2022-11-19 08:00:36,226 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376834,376847] [2022-11-19 08:00:36,226 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376989,377002] [2022-11-19 08:00:36,227 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377149,377162] [2022-11-19 08:00:36,227 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377300,377313] [2022-11-19 08:00:36,228 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377451,377464] [2022-11-19 08:00:36,228 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377603,377616] [2022-11-19 08:00:36,229 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377752,377765] [2022-11-19 08:00:36,229 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377900,377913] [2022-11-19 08:00:36,230 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378057,378070] [2022-11-19 08:00:36,230 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378206,378219] [2022-11-19 08:00:36,231 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378362,378375] [2022-11-19 08:00:36,231 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378515,378528] [2022-11-19 08:00:36,232 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378661,378674] [2022-11-19 08:00:36,233 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378804,378817] [2022-11-19 08:00:36,233 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378956,378969] [2022-11-19 08:00:36,234 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379102,379115] [2022-11-19 08:00:36,234 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379247,379260] [2022-11-19 08:00:36,235 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379401,379414] [2022-11-19 08:00:36,235 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379552,379565] [2022-11-19 08:00:36,236 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379707,379720] [2022-11-19 08:00:36,236 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379859,379872] [2022-11-19 08:00:36,237 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380014,380027] [2022-11-19 08:00:36,237 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380178,380191] [2022-11-19 08:00:36,238 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380334,380347] [2022-11-19 08:00:36,238 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380498,380511] [2022-11-19 08:00:36,239 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380640,380653] [2022-11-19 08:00:36,239 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380798,380811] [2022-11-19 08:00:36,240 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380965,380978] [2022-11-19 08:00:36,240 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381124,381137] [2022-11-19 08:00:36,241 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381283,381296] [2022-11-19 08:00:36,241 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381432,381445] [2022-11-19 08:00:36,242 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381579,381592] [2022-11-19 08:00:36,242 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381718,381731] [2022-11-19 08:00:36,243 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381881,381894] [2022-11-19 08:00:36,243 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382047,382060] [2022-11-19 08:00:36,244 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382211,382224] [2022-11-19 08:00:36,244 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382376,382389] [2022-11-19 08:00:36,245 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382541,382554] [2022-11-19 08:00:36,245 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382707,382720] [2022-11-19 08:00:36,246 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382872,382885] [2022-11-19 08:00:36,246 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383039,383052] [2022-11-19 08:00:36,247 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383199,383212] [2022-11-19 08:00:36,247 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383361,383374] [2022-11-19 08:00:36,248 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383520,383533] [2022-11-19 08:00:36,248 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383666,383679] [2022-11-19 08:00:36,249 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383809,383822] [2022-11-19 08:00:36,249 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383953,383966] [2022-11-19 08:00:36,250 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384096,384109] [2022-11-19 08:00:36,250 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384240,384253] [2022-11-19 08:00:36,251 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384381,384394] [2022-11-19 08:00:36,251 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384519,384532] [2022-11-19 08:00:36,252 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384677,384690] [2022-11-19 08:00:36,252 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384836,384849] [2022-11-19 08:00:36,253 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384992,385005] [2022-11-19 08:00:36,253 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385141,385154] [2022-11-19 08:00:36,254 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385293,385306] [2022-11-19 08:00:36,254 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385444,385457] [2022-11-19 08:00:36,255 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385593,385606] [2022-11-19 08:00:36,255 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385745,385758] [2022-11-19 08:00:36,256 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385893,385906] [2022-11-19 08:00:36,256 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386046,386059] [2022-11-19 08:00:36,257 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386197,386210] [2022-11-19 08:00:36,257 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386347,386360] [2022-11-19 08:00:36,258 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386494,386507] [2022-11-19 08:00:36,258 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386645,386658] [2022-11-19 08:00:36,259 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386796,386809] [2022-11-19 08:00:36,259 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386944,386957] [2022-11-19 08:00:36,260 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387110,387123] [2022-11-19 08:00:36,260 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387279,387292] [2022-11-19 08:00:36,261 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387446,387459] [2022-11-19 08:00:36,261 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387614,387627] [2022-11-19 08:00:36,261 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387764,387777] [2022-11-19 08:00:36,262 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387911,387924] [2022-11-19 08:00:36,262 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388072,388085] [2022-11-19 08:00:36,263 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388242,388255] [2022-11-19 08:00:36,263 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388404,388417] [2022-11-19 08:00:36,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:00:36,311 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-19 08:00:36,374 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:00:36,724 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375016,375029] [2022-11-19 08:00:36,724 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375161,375174] [2022-11-19 08:00:36,725 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375307,375320] [2022-11-19 08:00:36,726 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375472,375485] [2022-11-19 08:00:36,727 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375630,375643] [2022-11-19 08:00:36,728 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375788,375801] [2022-11-19 08:00:36,728 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375946,375959] [2022-11-19 08:00:36,729 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376106,376119] [2022-11-19 08:00:36,729 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376265,376278] [2022-11-19 08:00:36,731 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376404,376417] [2022-11-19 08:00:36,731 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376546,376559] [2022-11-19 08:00:36,731 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376695,376708] [2022-11-19 08:00:36,732 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376834,376847] [2022-11-19 08:00:36,733 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376989,377002] [2022-11-19 08:00:36,733 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377149,377162] [2022-11-19 08:00:36,734 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377300,377313] [2022-11-19 08:00:36,734 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377451,377464] [2022-11-19 08:00:36,734 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377603,377616] [2022-11-19 08:00:36,735 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377752,377765] [2022-11-19 08:00:36,735 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377900,377913] [2022-11-19 08:00:36,736 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378057,378070] [2022-11-19 08:00:36,736 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378206,378219] [2022-11-19 08:00:36,737 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378362,378375] [2022-11-19 08:00:36,737 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378515,378528] [2022-11-19 08:00:36,739 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378661,378674] [2022-11-19 08:00:36,739 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378804,378817] [2022-11-19 08:00:36,740 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378956,378969] [2022-11-19 08:00:36,740 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379102,379115] [2022-11-19 08:00:36,740 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379247,379260] [2022-11-19 08:00:36,741 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379401,379414] [2022-11-19 08:00:36,742 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379552,379565] [2022-11-19 08:00:36,742 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379707,379720] [2022-11-19 08:00:36,743 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379859,379872] [2022-11-19 08:00:36,743 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380014,380027] [2022-11-19 08:00:36,744 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380178,380191] [2022-11-19 08:00:36,745 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380334,380347] [2022-11-19 08:00:36,745 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380498,380511] [2022-11-19 08:00:36,746 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380640,380653] [2022-11-19 08:00:36,746 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380798,380811] [2022-11-19 08:00:36,751 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380965,380978] [2022-11-19 08:00:36,752 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381124,381137] [2022-11-19 08:00:36,753 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381283,381296] [2022-11-19 08:00:36,753 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381432,381445] [2022-11-19 08:00:36,754 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381579,381592] [2022-11-19 08:00:36,754 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381718,381731] [2022-11-19 08:00:36,754 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381881,381894] [2022-11-19 08:00:36,755 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382047,382060] [2022-11-19 08:00:36,755 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382211,382224] [2022-11-19 08:00:36,760 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382376,382389] [2022-11-19 08:00:36,761 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382541,382554] [2022-11-19 08:00:36,761 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382707,382720] [2022-11-19 08:00:36,762 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382872,382885] [2022-11-19 08:00:36,762 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383039,383052] [2022-11-19 08:00:36,763 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383199,383212] [2022-11-19 08:00:36,763 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383361,383374] [2022-11-19 08:00:36,764 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383520,383533] [2022-11-19 08:00:36,765 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383666,383679] [2022-11-19 08:00:36,766 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383809,383822] [2022-11-19 08:00:36,768 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383953,383966] [2022-11-19 08:00:36,769 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384096,384109] [2022-11-19 08:00:36,769 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384240,384253] [2022-11-19 08:00:36,770 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384381,384394] [2022-11-19 08:00:36,771 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384519,384532] [2022-11-19 08:00:36,771 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384677,384690] [2022-11-19 08:00:36,773 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384836,384849] [2022-11-19 08:00:36,773 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384992,385005] [2022-11-19 08:00:36,774 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385141,385154] [2022-11-19 08:00:36,779 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385293,385306] [2022-11-19 08:00:36,779 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385444,385457] [2022-11-19 08:00:36,780 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385593,385606] [2022-11-19 08:00:36,780 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385745,385758] [2022-11-19 08:00:36,780 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385893,385906] [2022-11-19 08:00:36,781 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386046,386059] [2022-11-19 08:00:36,781 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386197,386210] [2022-11-19 08:00:36,782 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386347,386360] [2022-11-19 08:00:36,782 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386494,386507] [2022-11-19 08:00:36,783 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386645,386658] [2022-11-19 08:00:36,783 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386796,386809] [2022-11-19 08:00:36,784 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386944,386957] [2022-11-19 08:00:36,785 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387110,387123] [2022-11-19 08:00:36,785 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387279,387292] [2022-11-19 08:00:36,786 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387446,387459] [2022-11-19 08:00:36,787 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387614,387627] [2022-11-19 08:00:36,787 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387764,387777] [2022-11-19 08:00:36,787 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387911,387924] [2022-11-19 08:00:36,788 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388072,388085] [2022-11-19 08:00:36,788 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388242,388255] [2022-11-19 08:00:36,789 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388404,388417] [2022-11-19 08:00:36,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:00:36,845 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:00:37,144 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375016,375029] [2022-11-19 08:00:37,144 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375161,375174] [2022-11-19 08:00:37,145 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375307,375320] [2022-11-19 08:00:37,145 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375472,375485] [2022-11-19 08:00:37,145 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375630,375643] [2022-11-19 08:00:37,146 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375788,375801] [2022-11-19 08:00:37,146 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[375946,375959] [2022-11-19 08:00:37,146 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376106,376119] [2022-11-19 08:00:37,147 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376265,376278] [2022-11-19 08:00:37,148 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376404,376417] [2022-11-19 08:00:37,149 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376546,376559] [2022-11-19 08:00:37,149 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376695,376708] [2022-11-19 08:00:37,149 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376834,376847] [2022-11-19 08:00:37,150 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[376989,377002] [2022-11-19 08:00:37,150 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377149,377162] [2022-11-19 08:00:37,150 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377300,377313] [2022-11-19 08:00:37,151 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377451,377464] [2022-11-19 08:00:37,154 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377603,377616] [2022-11-19 08:00:37,155 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377752,377765] [2022-11-19 08:00:37,155 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[377900,377913] [2022-11-19 08:00:37,155 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378057,378070] [2022-11-19 08:00:37,156 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378206,378219] [2022-11-19 08:00:37,156 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378362,378375] [2022-11-19 08:00:37,157 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378515,378528] [2022-11-19 08:00:37,157 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378661,378674] [2022-11-19 08:00:37,157 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378804,378817] [2022-11-19 08:00:37,159 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[378956,378969] [2022-11-19 08:00:37,160 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379102,379115] [2022-11-19 08:00:37,160 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379247,379260] [2022-11-19 08:00:37,160 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379401,379414] [2022-11-19 08:00:37,161 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379552,379565] [2022-11-19 08:00:37,161 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379707,379720] [2022-11-19 08:00:37,161 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[379859,379872] [2022-11-19 08:00:37,162 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380014,380027] [2022-11-19 08:00:37,162 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380178,380191] [2022-11-19 08:00:37,162 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380334,380347] [2022-11-19 08:00:37,163 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380498,380511] [2022-11-19 08:00:37,164 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380640,380653] [2022-11-19 08:00:37,164 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380798,380811] [2022-11-19 08:00:37,203 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[380965,380978] [2022-11-19 08:00:37,204 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381124,381137] [2022-11-19 08:00:37,206 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381283,381296] [2022-11-19 08:00:37,206 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381432,381445] [2022-11-19 08:00:37,207 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381579,381592] [2022-11-19 08:00:37,207 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381718,381731] [2022-11-19 08:00:37,207 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[381881,381894] [2022-11-19 08:00:37,208 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382047,382060] [2022-11-19 08:00:37,208 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382211,382224] [2022-11-19 08:00:37,208 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382376,382389] [2022-11-19 08:00:37,209 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382541,382554] [2022-11-19 08:00:37,209 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382707,382720] [2022-11-19 08:00:37,210 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[382872,382885] [2022-11-19 08:00:37,210 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383039,383052] [2022-11-19 08:00:37,211 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383199,383212] [2022-11-19 08:00:37,211 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383361,383374] [2022-11-19 08:00:37,211 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383520,383533] [2022-11-19 08:00:37,212 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383666,383679] [2022-11-19 08:00:37,212 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383809,383822] [2022-11-19 08:00:37,212 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[383953,383966] [2022-11-19 08:00:37,213 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384096,384109] [2022-11-19 08:00:37,213 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384240,384253] [2022-11-19 08:00:37,213 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384381,384394] [2022-11-19 08:00:37,214 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384519,384532] [2022-11-19 08:00:37,214 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384677,384690] [2022-11-19 08:00:37,214 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384836,384849] [2022-11-19 08:00:37,215 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[384992,385005] [2022-11-19 08:00:37,215 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385141,385154] [2022-11-19 08:00:37,215 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385293,385306] [2022-11-19 08:00:37,216 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385444,385457] [2022-11-19 08:00:37,216 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385593,385606] [2022-11-19 08:00:37,217 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385745,385758] [2022-11-19 08:00:37,217 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[385893,385906] [2022-11-19 08:00:37,218 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386046,386059] [2022-11-19 08:00:37,218 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386197,386210] [2022-11-19 08:00:37,218 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386347,386360] [2022-11-19 08:00:37,219 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386494,386507] [2022-11-19 08:00:37,219 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386645,386658] [2022-11-19 08:00:37,220 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386796,386809] [2022-11-19 08:00:37,220 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[386944,386957] [2022-11-19 08:00:37,222 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387110,387123] [2022-11-19 08:00:37,226 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387279,387292] [2022-11-19 08:00:37,239 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387446,387459] [2022-11-19 08:00:37,239 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387614,387627] [2022-11-19 08:00:37,240 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387764,387777] [2022-11-19 08:00:37,240 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[387911,387924] [2022-11-19 08:00:37,240 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388072,388085] [2022-11-19 08:00:37,241 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388242,388255] [2022-11-19 08:00:37,241 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i[388404,388417] [2022-11-19 08:00:37,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:00:37,765 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:00:37,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:37 WrapperNode [2022-11-19 08:00:37,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:00:37,767 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:00:37,767 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:00:37,768 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:00:37,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:37" (1/1) ... [2022-11-19 08:00:37,886 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:37" (1/1) ... [2022-11-19 08:00:38,094 INFO L138 Inliner]: procedures = 650, calls = 2105, calls flagged for inlining = 297, calls inlined = 221, statements flattened = 4781 [2022-11-19 08:00:38,095 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:00:38,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:00:38,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:00:38,096 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:00:38,105 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:37" (1/1) ... [2022-11-19 08:00:38,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:37" (1/1) ... [2022-11-19 08:00:38,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:37" (1/1) ... [2022-11-19 08:00:38,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:37" (1/1) ... [2022-11-19 08:00:38,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:37" (1/1) ... [2022-11-19 08:00:38,314 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:37" (1/1) ... [2022-11-19 08:00:38,342 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:37" (1/1) ... [2022-11-19 08:00:38,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:37" (1/1) ... [2022-11-19 08:00:38,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:00:38,382 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:00:38,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:00:38,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:00:38,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:37" (1/1) ... [2022-11-19 08:00:38,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:00:38,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:00:38,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:00:38,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:00:38,469 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-19 08:00:38,469 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-19 08:00:38,469 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_urb_completion [2022-11-19 08:00:38,470 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_urb_completion [2022-11-19 08:00:38,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-19 08:00:38,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-19 08:00:38,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 08:00:38,470 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 08:00:38,470 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_free_framebuffer_work [2022-11-19 08:00:38,470 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_free_framebuffer_work [2022-11-19 08:00:38,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dummy_resourceless_instance_callback_5_23 [2022-11-19 08:00:38,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dummy_resourceless_instance_callback_5_23 [2022-11-19 08:00:38,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 08:00:38,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 08:00:38,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-19 08:00:38,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-19 08:00:38,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 08:00:38,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 08:00:38,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_fb_info [2022-11-19 08:00:38,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_fb_info [2022-11-19 08:00:38,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-19 08:00:38,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-19 08:00:38,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-19 08:00:38,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-19 08:00:38,472 INFO L130 BoogieDeclarations]: Found specification of procedure metrics_reset_store [2022-11-19 08:00:38,473 INFO L138 BoogieDeclarations]: Found implementation of procedure metrics_reset_store [2022-11-19 08:00:38,473 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 08:00:38,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 08:00:38,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 08:00:38,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_urb_list [2022-11-19 08:00:38,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_urb_list [2022-11-19 08:00:38,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 08:00:38,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 08:00:38,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-19 08:00:38,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-19 08:00:38,474 INFO L130 BoogieDeclarations]: Found specification of procedure fb_add_videomode [2022-11-19 08:00:38,474 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_add_videomode [2022-11-19 08:00:38,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:00:38,475 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2022-11-19 08:00:38,475 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2022-11-19 08:00:38,475 INFO L130 BoogieDeclarations]: Found specification of procedure fb_edid_to_monspecs [2022-11-19 08:00:38,475 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_edid_to_monspecs [2022-11-19 08:00:38,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-19 08:00:38,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-19 08:00:38,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-19 08:00:38,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-19 08:00:38,476 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-19 08:00:38,476 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-19 08:00:38,476 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_setup_modes [2022-11-19 08:00:38,476 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_setup_modes [2022-11-19 08:00:38,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-19 08:00:38,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-19 08:00:38,476 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-19 08:00:38,477 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-19 08:00:38,477 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_vidreg_lock [2022-11-19 08:00:38,477 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_vidreg_lock [2022-11-19 08:00:38,477 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-19 08:00:38,477 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-19 08:00:38,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-19 08:00:38,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-19 08:00:38,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 08:00:38,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 08:00:38,478 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-11-19 08:00:38,478 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-11-19 08:00:38,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-19 08:00:38,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-19 08:00:38,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-19 08:00:38,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-19 08:00:38,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-19 08:00:38,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-19 08:00:38,479 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_free_framebuffer [2022-11-19 08:00:38,479 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_free_framebuffer [2022-11-19 08:00:38,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 08:00:38,479 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 08:00:38,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-19 08:00:38,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-19 08:00:38,480 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_var_color_format [2022-11-19 08:00:38,480 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_var_color_format [2022-11-19 08:00:38,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-19 08:00:38,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-19 08:00:38,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-19 08:00:38,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-19 08:00:38,480 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-19 08:00:38,481 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-19 08:00:38,481 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-19 08:00:38,481 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-19 08:00:38,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-19 08:00:38,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-19 08:00:38,481 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-11-19 08:00:38,481 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-11-19 08:00:38,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-19 08:00:38,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-19 08:00:38,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:00:38,482 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register_16 [2022-11-19 08:00:38,482 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register_16 [2022-11-19 08:00:38,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:00:38,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 08:00:38,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 08:00:38,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:00:38,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-19 08:00:38,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-19 08:00:38,483 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 08:00:38,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 08:00:38,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-19 08:00:38,483 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-19 08:00:38,483 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-19 08:00:38,484 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register [2022-11-19 08:00:38,484 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register [2022-11-19 08:00:38,484 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-11-19 08:00:38,484 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-11-19 08:00:38,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2022-11-19 08:00:38,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2022-11-19 08:00:38,484 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_init_framebuffer_work [2022-11-19 08:00:38,485 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_init_framebuffer_work [2022-11-19 08:00:38,485 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-19 08:00:38,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-19 08:00:38,485 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 08:00:38,485 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 08:00:38,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-19 08:00:38,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-19 08:00:38,486 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-19 08:00:38,486 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-19 08:00:38,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_struct_fb_ops_dummy_resourceless_instance_5 [2022-11-19 08:00:38,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_struct_fb_ops_dummy_resourceless_instance_5 [2022-11-19 08:00:38,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-19 08:00:38,487 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-11-19 08:00:38,487 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-11-19 08:00:38,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:00:38,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:00:38,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-19 08:00:38,488 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-11-19 08:00:38,488 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-11-19 08:00:38,488 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_submit_urb [2022-11-19 08:00:38,488 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_submit_urb [2022-11-19 08:00:38,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-19 08:00:38,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-19 08:00:38,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 08:00:38,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-19 08:00:38,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 08:00:38,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 08:00:38,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 08:00:38,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 08:00:38,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 08:00:38,489 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_vidreg_unlock [2022-11-19 08:00:38,489 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_vidreg_unlock [2022-11-19 08:00:38,489 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_check_var [2022-11-19 08:00:38,490 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_check_var [2022-11-19 08:00:38,490 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_is_valid_mode [2022-11-19 08:00:38,490 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_is_valid_mode [2022-11-19 08:00:38,490 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register_lfsr16 [2022-11-19 08:00:38,490 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register_lfsr16 [2022-11-19 08:00:38,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-19 08:00:38,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-19 08:00:38,491 INFO L130 BoogieDeclarations]: Found specification of procedure fb_destroy_modelist [2022-11-19 08:00:38,491 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_destroy_modelist [2022-11-19 08:00:38,491 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-19 08:00:38,491 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-19 08:00:38,491 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-19 08:00:38,491 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-19 08:00:38,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 08:00:38,491 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 08:00:38,492 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_release [2022-11-19 08:00:38,492 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_release [2022-11-19 08:00:38,492 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_get_urb [2022-11-19 08:00:38,492 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_get_urb [2022-11-19 08:00:38,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_framebuffer_103 [2022-11-19 08:00:38,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_framebuffer_103 [2022-11-19 08:00:38,492 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_video_mode [2022-11-19 08:00:38,492 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_video_mode [2022-11-19 08:00:38,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-19 08:00:38,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-19 08:00:38,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2022-11-19 08:00:38,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2022-11-19 08:00:38,493 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_blank [2022-11-19 08:00:38,493 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_blank [2022-11-19 08:00:38,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-19 08:00:38,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-19 08:00:38,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:00:38,494 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 08:00:38,494 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 08:00:38,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-19 08:00:38,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-19 08:00:38,495 INFO L130 BoogieDeclarations]: Found specification of procedure get_cycles [2022-11-19 08:00:38,495 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cycles [2022-11-19 08:00:38,495 INFO L130 BoogieDeclarations]: Found specification of procedure up [2022-11-19 08:00:38,495 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2022-11-19 08:00:38,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:00:38,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_107 [2022-11-19 08:00:38,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_107 [2022-11-19 08:00:38,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-19 08:00:38,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-19 08:00:38,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-19 08:00:38,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-19 08:00:38,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 08:00:38,496 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-19 08:00:38,496 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-19 08:00:38,496 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-19 08:00:38,496 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-19 08:00:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-19 08:00:38,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-19 08:00:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-19 08:00:38,497 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-19 08:00:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 08:00:38,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 08:00:38,497 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-19 08:00:38,498 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-19 08:00:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-19 08:00:38,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-19 08:00:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2022-11-19 08:00:38,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2022-11-19 08:00:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-19 08:00:38,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-19 08:00:38,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-19 08:00:38,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-19 08:00:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-19 08:00:38,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-19 08:00:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2022-11-19 08:00:38,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2022-11-19 08:00:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-19 08:00:38,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-19 08:00:38,499 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-19 08:00:38,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-19 08:00:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2022-11-19 08:00:38,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2022-11-19 08:00:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-19 08:00:38,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-19 08:00:38,500 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 08:00:38,500 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 08:00:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-19 08:00:38,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-19 08:00:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_handle_damage [2022-11-19 08:00:38,501 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_handle_damage [2022-11-19 08:00:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_render_hline [2022-11-19 08:00:38,501 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_render_hline [2022-11-19 08:00:38,501 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_usb_disconnect [2022-11-19 08:00:38,501 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_usb_disconnect [2022-11-19 08:00:38,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-19 08:00:38,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-19 08:00:38,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-19 08:00:38,502 INFO L130 BoogieDeclarations]: Found specification of procedure edid_show [2022-11-19 08:00:38,502 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_show [2022-11-19 08:00:38,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-19 08:00:38,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-19 08:00:38,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-19 08:00:38,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 08:00:38,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 08:00:38,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-19 08:00:38,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-19 08:00:38,503 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_blanking [2022-11-19 08:00:38,503 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_blanking [2022-11-19 08:00:38,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 08:00:38,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 08:00:38,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-19 08:00:38,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-19 08:00:38,504 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-19 08:00:38,504 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-19 08:00:38,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_register_13_2 [2022-11-19 08:00:38,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_register_13_2 [2022-11-19 08:00:38,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_framebuffer [2022-11-19 08:00:38,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_framebuffer [2022-11-19 08:00:38,505 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_set_par [2022-11-19 08:00:38,505 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_set_par [2022-11-19 08:00:38,505 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-19 08:00:38,505 INFO L130 BoogieDeclarations]: Found specification of procedure edid_store [2022-11-19 08:00:38,505 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_store [2022-11-19 08:00:39,815 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:00:39,824 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:00:40,439 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 08:01:32,470 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:01:32,499 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:01:32,500 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 08:01:32,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:32 BoogieIcfgContainer [2022-11-19 08:01:32,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:01:32,507 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:01:32,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:01:32,510 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:01:32,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:00:32" (1/3) ... [2022-11-19 08:01:32,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bb2c1ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:01:32, skipping insertion in model container [2022-11-19 08:01:32,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:37" (2/3) ... [2022-11-19 08:01:32,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bb2c1ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:01:32, skipping insertion in model container [2022-11-19 08:01:32,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:32" (3/3) ... [2022-11-19 08:01:32,513 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--video--fbdev--udlfb.ko.cil.i [2022-11-19 08:01:32,534 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:01:32,534 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2022-11-19 08:01:32,690 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:01:32,697 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@65be9caf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:01:32,699 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2022-11-19 08:01:32,709 INFO L276 IsEmpty]: Start isEmpty. Operand has 1724 states, 1148 states have (on average 1.2639372822299653) internal successors, (1451), 1225 states have internal predecessors, (1451), 427 states have call successors, (427), 116 states have call predecessors, (427), 115 states have return successors, (419), 405 states have call predecessors, (419), 419 states have call successors, (419) [2022-11-19 08:01:32,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-19 08:01:32,720 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:01:32,721 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:01:32,721 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:01:32,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:01:32,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1544672961, now seen corresponding path program 1 times [2022-11-19 08:01:32,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:01:32,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [315789803] [2022-11-19 08:01:32,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:32,744 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:01:32,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:01:32,750 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:01:32,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-19 08:01:34,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:34,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 948 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:01:34,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:01:35,423 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-19 08:01:35,423 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:01:35,424 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:01:35,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [315789803] [2022-11-19 08:01:35,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [315789803] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:01:35,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:01:35,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:01:35,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593664731] [2022-11-19 08:01:35,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:01:35,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:01:35,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:01:35,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:01:35,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:01:35,474 INFO L87 Difference]: Start difference. First operand has 1724 states, 1148 states have (on average 1.2639372822299653) internal successors, (1451), 1225 states have internal predecessors, (1451), 427 states have call successors, (427), 116 states have call predecessors, (427), 115 states have return successors, (419), 405 states have call predecessors, (419), 419 states have call successors, (419) Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-19 08:01:35,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:01:35,934 INFO L93 Difference]: Finished difference Result 3398 states and 4651 transitions. [2022-11-19 08:01:35,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:01:35,939 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 71 [2022-11-19 08:01:35,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:01:35,970 INFO L225 Difference]: With dead ends: 3398 [2022-11-19 08:01:35,970 INFO L226 Difference]: Without dead ends: 1703 [2022-11-19 08:01:35,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:01:35,987 INFO L413 NwaCegarLoop]: 2254 mSDtfsCounter, 2202 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2204 SdHoareTripleChecker+Valid, 4506 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:01:35,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2204 Valid, 4506 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:01:36,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2022-11-19 08:01:36,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1703. [2022-11-19 08:01:36,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1703 states, 1138 states have (on average 1.226713532513181) internal successors, (1396), 1207 states have internal predecessors, (1396), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-19 08:01:36,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1703 states to 1703 states and 2232 transitions. [2022-11-19 08:01:36,241 INFO L78 Accepts]: Start accepts. Automaton has 1703 states and 2232 transitions. Word has length 71 [2022-11-19 08:01:36,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:01:36,243 INFO L495 AbstractCegarLoop]: Abstraction has 1703 states and 2232 transitions. [2022-11-19 08:01:36,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-11-19 08:01:36,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1703 states and 2232 transitions. [2022-11-19 08:01:36,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-19 08:01:36,258 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:01:36,259 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:01:36,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:01:36,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:01:36,485 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:01:36,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:01:36,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1204642231, now seen corresponding path program 1 times [2022-11-19 08:01:36,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:01:36,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [920772164] [2022-11-19 08:01:36,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:36,488 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:01:36,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:01:36,490 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:01:36,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-19 08:01:37,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:37,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 957 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:01:37,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:01:39,168 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-19 08:01:39,168 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:01:39,169 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:01:39,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [920772164] [2022-11-19 08:01:39,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [920772164] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:01:39,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:01:39,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:01:39,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383396341] [2022-11-19 08:01:39,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:01:39,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:01:39,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:01:39,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:01:39,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:01:39,172 INFO L87 Difference]: Start difference. First operand 1703 states and 2232 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-19 08:01:39,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:01:39,503 INFO L93 Difference]: Finished difference Result 1703 states and 2232 transitions. [2022-11-19 08:01:39,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:01:39,503 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 77 [2022-11-19 08:01:39,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:01:39,518 INFO L225 Difference]: With dead ends: 1703 [2022-11-19 08:01:39,518 INFO L226 Difference]: Without dead ends: 1701 [2022-11-19 08:01:39,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:01:39,522 INFO L413 NwaCegarLoop]: 2228 mSDtfsCounter, 2170 mSDsluCounter, 2226 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2172 SdHoareTripleChecker+Valid, 4454 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:01:39,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2172 Valid, 4454 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:01:39,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1701 states. [2022-11-19 08:01:39,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1701 to 1701. [2022-11-19 08:01:39,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1701 states, 1137 states have (on average 1.2260334212840809) internal successors, (1394), 1205 states have internal predecessors, (1394), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-19 08:01:39,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2230 transitions. [2022-11-19 08:01:39,680 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2230 transitions. Word has length 77 [2022-11-19 08:01:39,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:01:39,682 INFO L495 AbstractCegarLoop]: Abstraction has 1701 states and 2230 transitions. [2022-11-19 08:01:39,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-19 08:01:39,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2230 transitions. [2022-11-19 08:01:39,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-19 08:01:39,686 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:01:39,686 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:01:39,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:01:39,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:01:39,911 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:01:39,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:01:39,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1042500940, now seen corresponding path program 1 times [2022-11-19 08:01:39,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:01:39,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2052661535] [2022-11-19 08:01:39,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:39,913 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:01:39,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:01:39,914 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:01:39,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-19 08:01:41,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:41,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 966 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:01:41,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:01:42,248 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-19 08:01:42,248 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:01:42,248 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:01:42,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2052661535] [2022-11-19 08:01:42,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2052661535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:01:42,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:01:42,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:01:42,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26625117] [2022-11-19 08:01:42,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:01:42,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:01:42,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:01:42,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:01:42,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:01:42,251 INFO L87 Difference]: Start difference. First operand 1701 states and 2230 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-11-19 08:01:42,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:01:42,470 INFO L93 Difference]: Finished difference Result 1701 states and 2230 transitions. [2022-11-19 08:01:42,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:01:42,471 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 83 [2022-11-19 08:01:42,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:01:42,481 INFO L225 Difference]: With dead ends: 1701 [2022-11-19 08:01:42,482 INFO L226 Difference]: Without dead ends: 1699 [2022-11-19 08:01:42,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:01:42,489 INFO L413 NwaCegarLoop]: 2226 mSDtfsCounter, 2162 mSDsluCounter, 2224 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2164 SdHoareTripleChecker+Valid, 4450 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:01:42,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2164 Valid, 4450 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:01:42,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2022-11-19 08:01:42,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1699. [2022-11-19 08:01:42,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1699 states, 1136 states have (on average 1.2253521126760563) internal successors, (1392), 1203 states have internal predecessors, (1392), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-19 08:01:42,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2228 transitions. [2022-11-19 08:01:42,682 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2228 transitions. Word has length 83 [2022-11-19 08:01:42,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:01:42,684 INFO L495 AbstractCegarLoop]: Abstraction has 1699 states and 2228 transitions. [2022-11-19 08:01:42,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-11-19 08:01:42,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2228 transitions. [2022-11-19 08:01:42,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-19 08:01:42,687 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:01:42,688 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:01:42,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-19 08:01:42,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:01:42,910 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:01:42,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:01:42,911 INFO L85 PathProgramCache]: Analyzing trace with hash -2095572242, now seen corresponding path program 1 times [2022-11-19 08:01:42,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:01:42,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1617052845] [2022-11-19 08:01:42,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:42,913 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:01:42,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:01:42,915 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:01:42,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-19 08:01:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:44,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 975 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:01:44,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:01:45,228 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-19 08:01:45,228 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:01:45,228 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:01:45,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1617052845] [2022-11-19 08:01:45,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1617052845] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:01:45,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:01:45,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:01:45,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127595435] [2022-11-19 08:01:45,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:01:45,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:01:45,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:01:45,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:01:45,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:01:45,231 INFO L87 Difference]: Start difference. First operand 1699 states and 2228 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-19 08:01:45,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:01:45,466 INFO L93 Difference]: Finished difference Result 1699 states and 2228 transitions. [2022-11-19 08:01:45,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:01:45,467 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 89 [2022-11-19 08:01:45,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:01:45,477 INFO L225 Difference]: With dead ends: 1699 [2022-11-19 08:01:45,477 INFO L226 Difference]: Without dead ends: 1697 [2022-11-19 08:01:45,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:01:45,481 INFO L413 NwaCegarLoop]: 2224 mSDtfsCounter, 2154 mSDsluCounter, 2222 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2156 SdHoareTripleChecker+Valid, 4446 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:01:45,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2156 Valid, 4446 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:01:45,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2022-11-19 08:01:45,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1697. [2022-11-19 08:01:45,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 1135 states have (on average 1.224669603524229) internal successors, (1390), 1201 states have internal predecessors, (1390), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-19 08:01:45,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 2226 transitions. [2022-11-19 08:01:45,678 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 2226 transitions. Word has length 89 [2022-11-19 08:01:45,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:01:45,679 INFO L495 AbstractCegarLoop]: Abstraction has 1697 states and 2226 transitions. [2022-11-19 08:01:45,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-19 08:01:45,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 2226 transitions. [2022-11-19 08:01:45,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-19 08:01:45,681 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:01:45,681 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:01:45,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-19 08:01:45,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:01:45,903 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:01:45,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:01:45,903 INFO L85 PathProgramCache]: Analyzing trace with hash 523201107, now seen corresponding path program 1 times [2022-11-19 08:01:45,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:01:45,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [21217267] [2022-11-19 08:01:45,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:45,905 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:01:45,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:01:45,906 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:01:45,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-19 08:01:47,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:47,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 984 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:01:47,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:01:48,369 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-19 08:01:48,370 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:01:48,370 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:01:48,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [21217267] [2022-11-19 08:01:48,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [21217267] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:01:48,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:01:48,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:01:48,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851616394] [2022-11-19 08:01:48,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:01:48,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:01:48,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:01:48,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:01:48,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:01:48,373 INFO L87 Difference]: Start difference. First operand 1697 states and 2226 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-19 08:01:48,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:01:48,630 INFO L93 Difference]: Finished difference Result 1697 states and 2226 transitions. [2022-11-19 08:01:48,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:01:48,631 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 95 [2022-11-19 08:01:48,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:01:48,642 INFO L225 Difference]: With dead ends: 1697 [2022-11-19 08:01:48,642 INFO L226 Difference]: Without dead ends: 1695 [2022-11-19 08:01:48,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:01:48,645 INFO L413 NwaCegarLoop]: 2222 mSDtfsCounter, 2146 mSDsluCounter, 2220 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2148 SdHoareTripleChecker+Valid, 4442 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:01:48,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2148 Valid, 4442 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:01:48,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695 states. [2022-11-19 08:01:48,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695 to 1695. [2022-11-19 08:01:48,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1695 states, 1134 states have (on average 1.2239858906525574) internal successors, (1388), 1199 states have internal predecessors, (1388), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-19 08:01:48,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1695 states to 1695 states and 2224 transitions. [2022-11-19 08:01:48,818 INFO L78 Accepts]: Start accepts. Automaton has 1695 states and 2224 transitions. Word has length 95 [2022-11-19 08:01:48,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:01:48,819 INFO L495 AbstractCegarLoop]: Abstraction has 1695 states and 2224 transitions. [2022-11-19 08:01:48,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-19 08:01:48,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1695 states and 2224 transitions. [2022-11-19 08:01:48,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-19 08:01:48,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:01:48,822 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:01:48,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-19 08:01:49,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:01:49,047 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:01:49,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:01:49,048 INFO L85 PathProgramCache]: Analyzing trace with hash -2057089689, now seen corresponding path program 1 times [2022-11-19 08:01:49,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:01:49,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [782343338] [2022-11-19 08:01:49,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:49,050 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:01:49,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:01:49,051 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:01:49,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-19 08:01:50,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:50,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:01:50,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:01:51,524 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-19 08:01:51,524 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:01:51,524 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:01:51,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [782343338] [2022-11-19 08:01:51,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [782343338] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:01:51,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:01:51,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:01:51,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917306634] [2022-11-19 08:01:51,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:01:51,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:01:51,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:01:51,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:01:51,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:01:51,527 INFO L87 Difference]: Start difference. First operand 1695 states and 2224 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-19 08:01:51,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:01:51,770 INFO L93 Difference]: Finished difference Result 1695 states and 2224 transitions. [2022-11-19 08:01:51,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:01:51,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 101 [2022-11-19 08:01:51,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:01:51,780 INFO L225 Difference]: With dead ends: 1695 [2022-11-19 08:01:51,780 INFO L226 Difference]: Without dead ends: 1693 [2022-11-19 08:01:51,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:01:51,783 INFO L413 NwaCegarLoop]: 2220 mSDtfsCounter, 2138 mSDsluCounter, 2218 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2140 SdHoareTripleChecker+Valid, 4438 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:01:51,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2140 Valid, 4438 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:01:51,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1693 states. [2022-11-19 08:01:51,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1693 to 1693. [2022-11-19 08:01:51,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1693 states, 1133 states have (on average 1.2233009708737863) internal successors, (1386), 1197 states have internal predecessors, (1386), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-19 08:01:52,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 2222 transitions. [2022-11-19 08:01:52,011 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 2222 transitions. Word has length 101 [2022-11-19 08:01:52,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:01:52,011 INFO L495 AbstractCegarLoop]: Abstraction has 1693 states and 2222 transitions. [2022-11-19 08:01:52,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2022-11-19 08:01:52,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2222 transitions. [2022-11-19 08:01:52,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-19 08:01:52,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:01:52,015 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:01:52,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-19 08:01:52,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:01:52,234 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:01:52,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:01:52,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1809478231, now seen corresponding path program 1 times [2022-11-19 08:01:52,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:01:52,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2057285407] [2022-11-19 08:01:52,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:52,236 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:01:52,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:01:52,242 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:01:52,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-19 08:01:53,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:53,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 1002 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:01:53,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:01:54,706 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-19 08:01:54,706 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:01:54,707 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:01:54,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2057285407] [2022-11-19 08:01:54,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2057285407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:01:54,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:01:54,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:01:54,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620574675] [2022-11-19 08:01:54,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:01:54,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:01:54,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:01:54,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:01:54,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:01:54,709 INFO L87 Difference]: Start difference. First operand 1693 states and 2222 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-19 08:01:54,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:01:54,964 INFO L93 Difference]: Finished difference Result 1693 states and 2222 transitions. [2022-11-19 08:01:54,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:01:54,965 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 107 [2022-11-19 08:01:54,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:01:54,973 INFO L225 Difference]: With dead ends: 1693 [2022-11-19 08:01:54,973 INFO L226 Difference]: Without dead ends: 1691 [2022-11-19 08:01:54,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:01:54,975 INFO L413 NwaCegarLoop]: 2218 mSDtfsCounter, 2130 mSDsluCounter, 2216 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2132 SdHoareTripleChecker+Valid, 4434 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:01:54,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2132 Valid, 4434 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:01:54,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1691 states. [2022-11-19 08:01:55,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 1691. [2022-11-19 08:01:55,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1691 states, 1132 states have (on average 1.2226148409893993) internal successors, (1384), 1195 states have internal predecessors, (1384), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-19 08:01:55,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2220 transitions. [2022-11-19 08:01:55,205 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2220 transitions. Word has length 107 [2022-11-19 08:01:55,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:01:55,206 INFO L495 AbstractCegarLoop]: Abstraction has 1691 states and 2220 transitions. [2022-11-19 08:01:55,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-19 08:01:55,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2220 transitions. [2022-11-19 08:01:55,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-19 08:01:55,209 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:01:55,209 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:01:55,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-19 08:01:55,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:01:55,433 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:01:55,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:01:55,433 INFO L85 PathProgramCache]: Analyzing trace with hash -660453191, now seen corresponding path program 1 times [2022-11-19 08:01:55,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:01:55,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [409972742] [2022-11-19 08:01:55,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:55,435 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:01:55,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:01:55,435 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:01:55,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-19 08:01:56,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:56,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 1011 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:01:56,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:01:58,078 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-19 08:01:58,079 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:01:58,079 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:01:58,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [409972742] [2022-11-19 08:01:58,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [409972742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:01:58,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:01:58,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:01:58,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400543332] [2022-11-19 08:01:58,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:01:58,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:01:58,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:01:58,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:01:58,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:01:58,081 INFO L87 Difference]: Start difference. First operand 1691 states and 2220 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-19 08:01:58,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:01:58,423 INFO L93 Difference]: Finished difference Result 1691 states and 2220 transitions. [2022-11-19 08:01:58,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:01:58,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 113 [2022-11-19 08:01:58,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:01:58,433 INFO L225 Difference]: With dead ends: 1691 [2022-11-19 08:01:58,434 INFO L226 Difference]: Without dead ends: 1689 [2022-11-19 08:01:58,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:01:58,436 INFO L413 NwaCegarLoop]: 2216 mSDtfsCounter, 2126 mSDsluCounter, 2210 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2128 SdHoareTripleChecker+Valid, 4426 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:01:58,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2128 Valid, 4426 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:01:58,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2022-11-19 08:01:58,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 1689. [2022-11-19 08:01:58,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1689 states, 1131 states have (on average 1.2219274977895667) internal successors, (1382), 1193 states have internal predecessors, (1382), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-19 08:01:58,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 2218 transitions. [2022-11-19 08:01:58,698 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 2218 transitions. Word has length 113 [2022-11-19 08:01:58,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:01:58,698 INFO L495 AbstractCegarLoop]: Abstraction has 1689 states and 2218 transitions. [2022-11-19 08:01:58,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-19 08:01:58,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 2218 transitions. [2022-11-19 08:01:58,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-19 08:01:58,702 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:01:58,702 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:01:58,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-19 08:01:58,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:01:58,919 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:01:58,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:01:58,919 INFO L85 PathProgramCache]: Analyzing trace with hash 959781500, now seen corresponding path program 1 times [2022-11-19 08:01:58,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:01:58,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1573820473] [2022-11-19 08:01:58,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:58,921 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:01:58,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:01:58,923 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:01:58,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-19 08:02:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:02:00,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:02:00,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:02:01,977 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-19 08:02:01,978 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:02:01,978 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:02:01,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1573820473] [2022-11-19 08:02:01,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1573820473] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:02:01,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:02:01,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:02:01,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074346539] [2022-11-19 08:02:01,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:02:01,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:02:01,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:02:01,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:02:01,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:02:01,981 INFO L87 Difference]: Start difference. First operand 1689 states and 2218 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-19 08:02:02,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:02:02,191 INFO L93 Difference]: Finished difference Result 1689 states and 2218 transitions. [2022-11-19 08:02:02,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:02:02,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 115 [2022-11-19 08:02:02,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:02:02,201 INFO L225 Difference]: With dead ends: 1689 [2022-11-19 08:02:02,201 INFO L226 Difference]: Without dead ends: 1687 [2022-11-19 08:02:02,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:02:02,203 INFO L413 NwaCegarLoop]: 2214 mSDtfsCounter, 2118 mSDsluCounter, 2212 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2120 SdHoareTripleChecker+Valid, 4426 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:02:02,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2120 Valid, 4426 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:02:02,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2022-11-19 08:02:02,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 1687. [2022-11-19 08:02:02,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1687 states, 1130 states have (on average 1.2212389380530972) internal successors, (1380), 1191 states have internal predecessors, (1380), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-19 08:02:02,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 2216 transitions. [2022-11-19 08:02:02,459 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 2216 transitions. Word has length 115 [2022-11-19 08:02:02,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:02:02,460 INFO L495 AbstractCegarLoop]: Abstraction has 1687 states and 2216 transitions. [2022-11-19 08:02:02,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-19 08:02:02,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 2216 transitions. [2022-11-19 08:02:02,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-19 08:02:02,463 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:02:02,463 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:02:02,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-19 08:02:02,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:02:02,688 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:02:02,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:02:02,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1165719740, now seen corresponding path program 1 times [2022-11-19 08:02:02,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:02:02,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [541011853] [2022-11-19 08:02:02,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:02,689 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:02:02,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:02:02,690 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:02:02,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-19 08:02:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:02:04,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:02:04,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:02:05,785 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-19 08:02:05,786 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:02:05,786 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:02:05,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [541011853] [2022-11-19 08:02:05,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [541011853] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:02:05,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:02:05,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:02:05,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352882490] [2022-11-19 08:02:05,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:02:05,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:02:05,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:02:05,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:02:05,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:02:05,788 INFO L87 Difference]: Start difference. First operand 1687 states and 2216 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-19 08:02:06,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:02:06,094 INFO L93 Difference]: Finished difference Result 1687 states and 2216 transitions. [2022-11-19 08:02:06,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:02:06,094 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 121 [2022-11-19 08:02:06,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:02:06,105 INFO L225 Difference]: With dead ends: 1687 [2022-11-19 08:02:06,105 INFO L226 Difference]: Without dead ends: 1685 [2022-11-19 08:02:06,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:02:06,108 INFO L413 NwaCegarLoop]: 2212 mSDtfsCounter, 2110 mSDsluCounter, 2210 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2112 SdHoareTripleChecker+Valid, 4422 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:02:06,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2112 Valid, 4422 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:02:06,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2022-11-19 08:02:06,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1685. [2022-11-19 08:02:06,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1685 states, 1129 states have (on average 1.220549158547387) internal successors, (1378), 1189 states have internal predecessors, (1378), 419 states have call successors, (419), 115 states have call predecessors, (419), 114 states have return successors, (417), 403 states have call predecessors, (417), 417 states have call successors, (417) [2022-11-19 08:02:06,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1685 states to 1685 states and 2214 transitions. [2022-11-19 08:02:06,359 INFO L78 Accepts]: Start accepts. Automaton has 1685 states and 2214 transitions. Word has length 121 [2022-11-19 08:02:06,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:02:06,360 INFO L495 AbstractCegarLoop]: Abstraction has 1685 states and 2214 transitions. [2022-11-19 08:02:06,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-19 08:02:06,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1685 states and 2214 transitions. [2022-11-19 08:02:06,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-11-19 08:02:06,364 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:02:06,364 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-19 08:02:06,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-19 08:02:06,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:02:06,579 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:02:06,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:02:06,579 INFO L85 PathProgramCache]: Analyzing trace with hash 2114194245, now seen corresponding path program 1 times [2022-11-19 08:02:06,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:02:06,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671635074] [2022-11-19 08:02:06,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:06,581 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:02:06,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:02:06,583 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:02:06,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-19 08:02:08,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:02:08,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 1290 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 08:02:08,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:02:08,655 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-11-19 08:02:08,655 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:02:08,655 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:02:08,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671635074] [2022-11-19 08:02:08,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [671635074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:02:08,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:02:08,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 08:02:08,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129365610] [2022-11-19 08:02:08,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:02:08,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:02:08,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:02:08,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:02:08,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:02:08,658 INFO L87 Difference]: Start difference. First operand 1685 states and 2214 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-19 08:02:10,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:02:10,989 INFO L93 Difference]: Finished difference Result 3610 states and 4799 transitions. [2022-11-19 08:02:10,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:02:10,991 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 168 [2022-11-19 08:02:10,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:02:11,006 INFO L225 Difference]: With dead ends: 3610 [2022-11-19 08:02:11,006 INFO L226 Difference]: Without dead ends: 1940 [2022-11-19 08:02:11,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:02:11,015 INFO L413 NwaCegarLoop]: 2304 mSDtfsCounter, 312 mSDsluCounter, 8938 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 11242 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:02:11,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 11242 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-19 08:02:11,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1940 states. [2022-11-19 08:02:11,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1940 to 1689. [2022-11-19 08:02:11,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1689 states, 1132 states have (on average 1.219964664310954) internal successors, (1381), 1192 states have internal predecessors, (1381), 420 states have call successors, (420), 115 states have call predecessors, (420), 114 states have return successors, (418), 404 states have call predecessors, (418), 418 states have call successors, (418) [2022-11-19 08:02:11,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 2219 transitions. [2022-11-19 08:02:11,419 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 2219 transitions. Word has length 168 [2022-11-19 08:02:11,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:02:11,421 INFO L495 AbstractCegarLoop]: Abstraction has 1689 states and 2219 transitions. [2022-11-19 08:02:11,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-19 08:02:11,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 2219 transitions. [2022-11-19 08:02:11,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-11-19 08:02:11,426 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:02:11,426 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-19 08:02:11,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-19 08:02:11,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:02:11,651 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:02:11,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:02:11,651 INFO L85 PathProgramCache]: Analyzing trace with hash 709002567, now seen corresponding path program 1 times [2022-11-19 08:02:11,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:02:11,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1953321343] [2022-11-19 08:02:11,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:11,653 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:02:11,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:02:11,654 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:02:11,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-19 08:02:13,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:02:13,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 1289 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-19 08:02:13,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:02:13,918 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 178 proven. 3 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-19 08:02:13,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:02:15,170 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2022-11-19 08:02:15,170 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:02:15,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1953321343] [2022-11-19 08:02:15,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1953321343] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:02:15,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [421352461] [2022-11-19 08:02:15,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:15,171 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:02:15,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:02:15,172 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:02:15,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2022-11-19 08:02:17,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:02:17,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 1289 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 08:02:17,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:02:19,580 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2022-11-19 08:02:19,580 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:02:19,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [421352461] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:02:19,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:02:19,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 8] total 13 [2022-11-19 08:02:19,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818042145] [2022-11-19 08:02:19,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:02:19,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:02:19,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:02:19,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:02:19,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-11-19 08:02:19,583 INFO L87 Difference]: Start difference. First operand 1689 states and 2219 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-19 08:02:21,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:02:30,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:02:30,495 INFO L93 Difference]: Finished difference Result 3334 states and 4431 transitions. [2022-11-19 08:02:30,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:02:30,497 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 168 [2022-11-19 08:02:30,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:02:30,510 INFO L225 Difference]: With dead ends: 3334 [2022-11-19 08:02:30,510 INFO L226 Difference]: Without dead ends: 1689 [2022-11-19 08:02:30,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 503 GetRequests, 490 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-11-19 08:02:30,520 INFO L413 NwaCegarLoop]: 2210 mSDtfsCounter, 2128 mSDsluCounter, 5784 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2133 SdHoareTripleChecker+Valid, 7994 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:02:30,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2133 Valid, 7994 Invalid, 848 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 846 Invalid, 1 Unknown, 0 Unchecked, 10.2s Time] [2022-11-19 08:02:30,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2022-11-19 08:02:30,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 1689. [2022-11-19 08:02:30,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1689 states, 1132 states have (on average 1.2190812720848057) internal successors, (1380), 1192 states have internal predecessors, (1380), 420 states have call successors, (420), 115 states have call predecessors, (420), 114 states have return successors, (418), 404 states have call predecessors, (418), 418 states have call successors, (418) [2022-11-19 08:02:30,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 2218 transitions. [2022-11-19 08:02:30,921 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 2218 transitions. Word has length 168 [2022-11-19 08:02:30,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:02:30,925 INFO L495 AbstractCegarLoop]: Abstraction has 1689 states and 2218 transitions. [2022-11-19 08:02:30,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-19 08:02:30,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 2218 transitions. [2022-11-19 08:02:30,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-11-19 08:02:30,928 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:02:30,929 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-19 08:02:30,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-19 08:02:31,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2022-11-19 08:02:31,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:02:31,357 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:02:31,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:02:31,357 INFO L85 PathProgramCache]: Analyzing trace with hash 709062149, now seen corresponding path program 1 times [2022-11-19 08:02:31,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:02:31,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1449230340] [2022-11-19 08:02:31,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:31,359 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:02:31,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:02:31,361 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:02:31,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-19 08:02:32,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:02:32,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 1289 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-19 08:02:32,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:02:33,590 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 178 proven. 3 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-19 08:02:33,590 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:02:34,844 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2022-11-19 08:02:34,844 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:02:34,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1449230340] [2022-11-19 08:02:34,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1449230340] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:02:34,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [541586682] [2022-11-19 08:02:34,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:34,845 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:02:34,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:02:34,847 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:02:34,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2022-11-19 08:02:37,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:02:37,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 1289 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-19 08:02:37,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:02:38,510 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-11-19 08:02:38,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:02:38,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [541586682] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:02:38,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:02:38,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 8] total 13 [2022-11-19 08:02:38,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396907584] [2022-11-19 08:02:38,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:02:38,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:02:38,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:02:38,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:02:38,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-19 08:02:38,514 INFO L87 Difference]: Start difference. First operand 1689 states and 2218 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-19 08:02:39,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:02:39,686 INFO L93 Difference]: Finished difference Result 3600 states and 4781 transitions. [2022-11-19 08:02:39,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:02:39,687 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) Word has length 168 [2022-11-19 08:02:39,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:02:39,698 INFO L225 Difference]: With dead ends: 3600 [2022-11-19 08:02:39,698 INFO L226 Difference]: Without dead ends: 1936 [2022-11-19 08:02:39,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 490 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-19 08:02:39,705 INFO L413 NwaCegarLoop]: 2590 mSDtfsCounter, 311 mSDsluCounter, 9804 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 12394 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:02:39,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 12394 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-19 08:02:39,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1936 states. [2022-11-19 08:02:40,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1936 to 1689. [2022-11-19 08:02:40,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1689 states, 1132 states have (on average 1.2181978798586572) internal successors, (1379), 1191 states have internal predecessors, (1379), 420 states have call successors, (420), 115 states have call predecessors, (420), 114 states have return successors, (418), 404 states have call predecessors, (418), 418 states have call successors, (418) [2022-11-19 08:02:40,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 2217 transitions. [2022-11-19 08:02:40,066 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 2217 transitions. Word has length 168 [2022-11-19 08:02:40,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:02:40,067 INFO L495 AbstractCegarLoop]: Abstraction has 1689 states and 2217 transitions. [2022-11-19 08:02:40,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-19 08:02:40,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 2217 transitions. [2022-11-19 08:02:40,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-19 08:02:40,069 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:02:40,069 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:02:40,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2022-11-19 08:02:40,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-19 08:02:40,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:02:40,470 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:02:40,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:02:40,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1045370928, now seen corresponding path program 1 times [2022-11-19 08:02:40,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:02:40,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [960704206] [2022-11-19 08:02:40,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:40,471 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:02:40,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:02:40,472 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:02:40,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-19 08:02:41,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:02:41,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:02:41,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:02:43,041 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-19 08:02:43,041 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:02:43,041 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:02:43,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [960704206] [2022-11-19 08:02:43,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [960704206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:02:43,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:02:43,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:02:43,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977101222] [2022-11-19 08:02:43,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:02:43,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:02:43,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:02:43,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:02:43,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:02:43,043 INFO L87 Difference]: Start difference. First operand 1689 states and 2217 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-19 08:02:43,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:02:43,336 INFO L93 Difference]: Finished difference Result 1689 states and 2217 transitions. [2022-11-19 08:02:43,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:02:43,337 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 127 [2022-11-19 08:02:43,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:02:43,344 INFO L225 Difference]: With dead ends: 1689 [2022-11-19 08:02:43,344 INFO L226 Difference]: Without dead ends: 1687 [2022-11-19 08:02:43,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:02:43,346 INFO L413 NwaCegarLoop]: 2208 mSDtfsCounter, 2100 mSDsluCounter, 2206 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2102 SdHoareTripleChecker+Valid, 4414 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:02:43,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2102 Valid, 4414 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:02:43,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2022-11-19 08:02:43,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 1687. [2022-11-19 08:02:43,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1687 states, 1131 states have (on average 1.2175066312997347) internal successors, (1377), 1189 states have internal predecessors, (1377), 420 states have call successors, (420), 115 states have call predecessors, (420), 114 states have return successors, (418), 404 states have call predecessors, (418), 418 states have call successors, (418) [2022-11-19 08:02:43,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 2215 transitions. [2022-11-19 08:02:43,570 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 2215 transitions. Word has length 127 [2022-11-19 08:02:43,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:02:43,570 INFO L495 AbstractCegarLoop]: Abstraction has 1687 states and 2215 transitions. [2022-11-19 08:02:43,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-19 08:02:43,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 2215 transitions. [2022-11-19 08:02:43,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-19 08:02:43,572 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:02:43,573 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-19 08:02:43,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-19 08:02:43,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:02:43,784 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:02:43,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:02:43,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1645149592, now seen corresponding path program 1 times [2022-11-19 08:02:43,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:02:43,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040928792] [2022-11-19 08:02:43,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:43,786 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:02:43,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:02:43,787 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:02:43,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-19 08:02:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:02:45,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 1301 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-19 08:02:45,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:02:45,905 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 229 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-11-19 08:02:45,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:02:47,588 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 18 proven. 39 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2022-11-19 08:02:47,588 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:02:47,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040928792] [2022-11-19 08:02:47,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2040928792] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:02:47,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1896678815] [2022-11-19 08:02:47,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:47,589 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:02:47,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:02:47,589 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:02:47,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2022-11-19 08:02:50,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:02:50,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 1301 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-19 08:02:50,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:02:50,937 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2022-11-19 08:02:50,937 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:02:50,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1896678815] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:02:50,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:02:50,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9, 8] total 14 [2022-11-19 08:02:50,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825518452] [2022-11-19 08:02:50,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:02:50,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:02:50,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:02:50,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:02:50,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-19 08:02:50,940 INFO L87 Difference]: Start difference. First operand 1687 states and 2215 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-19 08:02:52,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:02:52,175 INFO L93 Difference]: Finished difference Result 3591 states and 4768 transitions. [2022-11-19 08:02:52,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:02:52,176 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 172 [2022-11-19 08:02:52,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:02:52,187 INFO L225 Difference]: With dead ends: 3591 [2022-11-19 08:02:52,187 INFO L226 Difference]: Without dead ends: 1934 [2022-11-19 08:02:52,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 500 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-11-19 08:02:52,195 INFO L413 NwaCegarLoop]: 2587 mSDtfsCounter, 307 mSDsluCounter, 9798 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 12385 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:02:52,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 12385 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-19 08:02:52,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1934 states. [2022-11-19 08:02:52,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1934 to 1687. [2022-11-19 08:02:52,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1687 states, 1131 states have (on average 1.2166224580017684) internal successors, (1376), 1188 states have internal predecessors, (1376), 420 states have call successors, (420), 115 states have call predecessors, (420), 114 states have return successors, (418), 404 states have call predecessors, (418), 418 states have call successors, (418) [2022-11-19 08:02:52,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 2214 transitions. [2022-11-19 08:02:52,472 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 2214 transitions. Word has length 172 [2022-11-19 08:02:52,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:02:52,473 INFO L495 AbstractCegarLoop]: Abstraction has 1687 states and 2214 transitions. [2022-11-19 08:02:52,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-19 08:02:52,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 2214 transitions. [2022-11-19 08:02:52,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-19 08:02:52,476 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:02:52,476 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:02:52,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2022-11-19 08:02:52,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-19 08:02:52,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:02:52,891 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:02:52,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:02:52,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1271184066, now seen corresponding path program 1 times [2022-11-19 08:02:52,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:02:52,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1695829058] [2022-11-19 08:02:52,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:52,893 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:02:52,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:02:52,894 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:02:52,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-11-19 08:02:54,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:02:54,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 1256 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-19 08:02:54,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:02:56,333 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-11-19 08:02:56,333 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:02:56,333 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:02:56,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1695829058] [2022-11-19 08:02:56,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1695829058] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:02:56,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:02:56,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-19 08:02:56,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294140298] [2022-11-19 08:02:56,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:02:56,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-19 08:02:56,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:02:56,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-19 08:02:56,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2022-11-19 08:02:56,336 INFO L87 Difference]: Start difference. First operand 1687 states and 2214 transitions. Second operand has 18 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 17 states have internal predecessors, (67), 7 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2022-11-19 08:03:03,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:03:03,177 INFO L93 Difference]: Finished difference Result 2704 states and 3506 transitions. [2022-11-19 08:03:03,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-19 08:03:03,178 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 17 states have internal predecessors, (67), 7 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 164 [2022-11-19 08:03:03,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:03:03,187 INFO L225 Difference]: With dead ends: 2704 [2022-11-19 08:03:03,187 INFO L226 Difference]: Without dead ends: 1727 [2022-11-19 08:03:03,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=172, Invalid=698, Unknown=0, NotChecked=0, Total=870 [2022-11-19 08:03:03,193 INFO L413 NwaCegarLoop]: 2201 mSDtfsCounter, 107 mSDsluCounter, 34886 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 37087 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:03:03,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 37087 Invalid, 969 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [258 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-19 08:03:03,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1727 states. [2022-11-19 08:03:03,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1727 to 1703. [2022-11-19 08:03:03,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1703 states, 1142 states have (on average 1.2145359019264448) internal successors, (1387), 1199 states have internal predecessors, (1387), 425 states have call successors, (425), 115 states have call predecessors, (425), 114 states have return successors, (423), 409 states have call predecessors, (423), 423 states have call successors, (423) [2022-11-19 08:03:03,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1703 states to 1703 states and 2235 transitions. [2022-11-19 08:03:03,509 INFO L78 Accepts]: Start accepts. Automaton has 1703 states and 2235 transitions. Word has length 164 [2022-11-19 08:03:03,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:03:03,509 INFO L495 AbstractCegarLoop]: Abstraction has 1703 states and 2235 transitions. [2022-11-19 08:03:03,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.9411764705882355) internal successors, (67), 17 states have internal predecessors, (67), 7 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2022-11-19 08:03:03,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1703 states and 2235 transitions. [2022-11-19 08:03:03,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-11-19 08:03:03,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:03:03,512 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:03:03,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-11-19 08:03:03,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:03,735 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:03:03,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:03:03,735 INFO L85 PathProgramCache]: Analyzing trace with hash -885321664, now seen corresponding path program 1 times [2022-11-19 08:03:03,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:03:03,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [645708618] [2022-11-19 08:03:03,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:03:03,736 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:03,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:03:03,737 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:03:03,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-19 08:03:05,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:03:05,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 08:03:05,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:03:05,398 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2022-11-19 08:03:05,398 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:03:05,398 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:03:05,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [645708618] [2022-11-19 08:03:05,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [645708618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:03:05,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:03:05,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 08:03:05,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241518399] [2022-11-19 08:03:05,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:03:05,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:03:05,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:03:05,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:03:05,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:03:05,402 INFO L87 Difference]: Start difference. First operand 1703 states and 2235 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-19 08:03:07,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:03:07,426 INFO L93 Difference]: Finished difference Result 2751 states and 3575 transitions. [2022-11-19 08:03:07,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:03:07,427 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 164 [2022-11-19 08:03:07,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:03:07,434 INFO L225 Difference]: With dead ends: 2751 [2022-11-19 08:03:07,434 INFO L226 Difference]: Without dead ends: 1725 [2022-11-19 08:03:07,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:03:07,438 INFO L413 NwaCegarLoop]: 2248 mSDtfsCounter, 628 mSDsluCounter, 7977 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 10225 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:03:07,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 10225 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [352 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-19 08:03:07,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2022-11-19 08:03:07,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1701. [2022-11-19 08:03:07,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1701 states, 1141 states have (on average 1.2138475021910604) internal successors, (1385), 1198 states have internal predecessors, (1385), 424 states have call successors, (424), 115 states have call predecessors, (424), 114 states have return successors, (422), 408 states have call predecessors, (422), 422 states have call successors, (422) [2022-11-19 08:03:07,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2231 transitions. [2022-11-19 08:03:07,784 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2231 transitions. Word has length 164 [2022-11-19 08:03:07,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:03:07,784 INFO L495 AbstractCegarLoop]: Abstraction has 1701 states and 2231 transitions. [2022-11-19 08:03:07,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-19 08:03:07,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2231 transitions. [2022-11-19 08:03:07,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-19 08:03:07,786 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:03:07,786 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-19 08:03:07,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-19 08:03:08,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:08,004 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:03:08,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:03:08,004 INFO L85 PathProgramCache]: Analyzing trace with hash 752091109, now seen corresponding path program 1 times [2022-11-19 08:03:08,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:03:08,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130487645] [2022-11-19 08:03:08,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:03:08,006 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:08,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:03:08,007 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:03:08,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-11-19 08:03:09,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:03:09,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 1313 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:03:09,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:03:09,798 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2022-11-19 08:03:09,798 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:03:09,799 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:03:09,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [130487645] [2022-11-19 08:03:09,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [130487645] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:03:09,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:03:09,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:03:09,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748073874] [2022-11-19 08:03:09,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:03:09,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:03:09,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:03:09,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:03:09,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:03:09,801 INFO L87 Difference]: Start difference. First operand 1701 states and 2231 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-19 08:03:10,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:03:10,081 INFO L93 Difference]: Finished difference Result 1701 states and 2231 transitions. [2022-11-19 08:03:10,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:03:10,082 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 176 [2022-11-19 08:03:10,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:03:10,089 INFO L225 Difference]: With dead ends: 1701 [2022-11-19 08:03:10,089 INFO L226 Difference]: Without dead ends: 1699 [2022-11-19 08:03:10,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:03:10,091 INFO L413 NwaCegarLoop]: 2205 mSDtfsCounter, 7 mSDsluCounter, 4404 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 6609 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:03:10,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 6609 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:03:10,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2022-11-19 08:03:10,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1699. [2022-11-19 08:03:10,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1699 states, 1140 states have (on average 1.2131578947368422) internal successors, (1383), 1196 states have internal predecessors, (1383), 424 states have call successors, (424), 115 states have call predecessors, (424), 114 states have return successors, (422), 408 states have call predecessors, (422), 422 states have call successors, (422) [2022-11-19 08:03:10,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2229 transitions. [2022-11-19 08:03:10,464 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2229 transitions. Word has length 176 [2022-11-19 08:03:10,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:03:10,468 INFO L495 AbstractCegarLoop]: Abstraction has 1699 states and 2229 transitions. [2022-11-19 08:03:10,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-19 08:03:10,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2229 transitions. [2022-11-19 08:03:10,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-19 08:03:10,469 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:03:10,469 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:03:10,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-11-19 08:03:10,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:10,670 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:03:10,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:03:10,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1963672871, now seen corresponding path program 1 times [2022-11-19 08:03:10,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:03:10,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1309190822] [2022-11-19 08:03:10,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:03:10,671 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:10,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:03:10,672 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:03:10,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-19 08:03:11,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:03:11,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:03:11,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:03:13,302 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-19 08:03:13,303 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:03:13,303 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:03:13,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1309190822] [2022-11-19 08:03:13,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1309190822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:03:13,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:03:13,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:03:13,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146824727] [2022-11-19 08:03:13,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:03:13,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:03:13,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:03:13,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:03:13,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:03:13,305 INFO L87 Difference]: Start difference. First operand 1699 states and 2229 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-11-19 08:03:13,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:03:13,605 INFO L93 Difference]: Finished difference Result 1699 states and 2229 transitions. [2022-11-19 08:03:13,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:03:13,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 133 [2022-11-19 08:03:13,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:03:13,611 INFO L225 Difference]: With dead ends: 1699 [2022-11-19 08:03:13,611 INFO L226 Difference]: Without dead ends: 1697 [2022-11-19 08:03:13,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:03:13,612 INFO L413 NwaCegarLoop]: 2203 mSDtfsCounter, 2089 mSDsluCounter, 2201 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2091 SdHoareTripleChecker+Valid, 4404 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:03:13,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2091 Valid, 4404 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:03:13,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2022-11-19 08:03:13,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1697. [2022-11-19 08:03:13,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 1139 states have (on average 1.2124670763827918) internal successors, (1381), 1194 states have internal predecessors, (1381), 424 states have call successors, (424), 115 states have call predecessors, (424), 114 states have return successors, (422), 408 states have call predecessors, (422), 422 states have call successors, (422) [2022-11-19 08:03:13,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 2227 transitions. [2022-11-19 08:03:13,867 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 2227 transitions. Word has length 133 [2022-11-19 08:03:13,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:03:13,868 INFO L495 AbstractCegarLoop]: Abstraction has 1697 states and 2227 transitions. [2022-11-19 08:03:13,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-11-19 08:03:13,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 2227 transitions. [2022-11-19 08:03:13,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-11-19 08:03:13,870 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:03:13,870 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:03:13,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-19 08:03:14,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:14,083 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:03:14,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:03:14,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1255997682, now seen corresponding path program 1 times [2022-11-19 08:03:14,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:03:14,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [366556433] [2022-11-19 08:03:14,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:03:14,084 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:14,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:03:14,085 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:03:14,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-11-19 08:03:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:03:15,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 1050 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:03:15,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:03:16,825 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-19 08:03:16,825 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:03:16,825 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:03:16,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [366556433] [2022-11-19 08:03:16,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [366556433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:03:16,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:03:16,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:03:16,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88813995] [2022-11-19 08:03:16,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:03:16,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:03:16,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:03:16,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:03:16,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:03:16,827 INFO L87 Difference]: Start difference. First operand 1697 states and 2227 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-11-19 08:03:17,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:03:17,101 INFO L93 Difference]: Finished difference Result 1697 states and 2227 transitions. [2022-11-19 08:03:17,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:03:17,101 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 139 [2022-11-19 08:03:17,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:03:17,106 INFO L225 Difference]: With dead ends: 1697 [2022-11-19 08:03:17,106 INFO L226 Difference]: Without dead ends: 1695 [2022-11-19 08:03:17,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:03:17,107 INFO L413 NwaCegarLoop]: 2201 mSDtfsCounter, 2081 mSDsluCounter, 2199 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2083 SdHoareTripleChecker+Valid, 4400 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:03:17,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2083 Valid, 4400 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:03:17,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695 states. [2022-11-19 08:03:17,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695 to 1695. [2022-11-19 08:03:17,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1695 states, 1138 states have (on average 1.2117750439367312) internal successors, (1379), 1192 states have internal predecessors, (1379), 424 states have call successors, (424), 115 states have call predecessors, (424), 114 states have return successors, (422), 408 states have call predecessors, (422), 422 states have call successors, (422) [2022-11-19 08:03:17,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1695 states to 1695 states and 2225 transitions. [2022-11-19 08:03:17,344 INFO L78 Accepts]: Start accepts. Automaton has 1695 states and 2225 transitions. Word has length 139 [2022-11-19 08:03:17,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:03:17,344 INFO L495 AbstractCegarLoop]: Abstraction has 1695 states and 2225 transitions. [2022-11-19 08:03:17,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-11-19 08:03:17,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1695 states and 2225 transitions. [2022-11-19 08:03:17,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-19 08:03:17,345 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:03:17,346 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-19 08:03:17,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2022-11-19 08:03:17,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:17,546 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:03:17,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:03:17,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1406066721, now seen corresponding path program 1 times [2022-11-19 08:03:17,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:03:17,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863978591] [2022-11-19 08:03:17,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:03:17,548 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:17,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:03:17,549 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:03:17,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-19 08:03:19,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:03:19,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 1324 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:03:19,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:03:21,229 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2022-11-19 08:03:21,229 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:03:21,229 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:03:21,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863978591] [2022-11-19 08:03:21,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [863978591] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:03:21,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:03:21,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:03:21,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195116805] [2022-11-19 08:03:21,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:03:21,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:03:21,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:03:21,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:03:21,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:03:21,231 INFO L87 Difference]: Start difference. First operand 1695 states and 2225 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-19 08:03:21,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:03:21,502 INFO L93 Difference]: Finished difference Result 3328 states and 4424 transitions. [2022-11-19 08:03:21,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:03:21,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 183 [2022-11-19 08:03:21,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:03:21,509 INFO L225 Difference]: With dead ends: 3328 [2022-11-19 08:03:21,509 INFO L226 Difference]: Without dead ends: 1691 [2022-11-19 08:03:21,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:03:21,518 INFO L413 NwaCegarLoop]: 2196 mSDtfsCounter, 2103 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2103 SdHoareTripleChecker+Valid, 2196 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:03:21,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2103 Valid, 2196 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:03:21,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1691 states. [2022-11-19 08:03:21,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 1691. [2022-11-19 08:03:21,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1691 states, 1135 states have (on average 1.2105726872246696) internal successors, (1374), 1188 states have internal predecessors, (1374), 424 states have call successors, (424), 115 states have call predecessors, (424), 114 states have return successors, (422), 408 states have call predecessors, (422), 422 states have call successors, (422) [2022-11-19 08:03:21,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2220 transitions. [2022-11-19 08:03:21,865 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2220 transitions. Word has length 183 [2022-11-19 08:03:21,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:03:21,866 INFO L495 AbstractCegarLoop]: Abstraction has 1691 states and 2220 transitions. [2022-11-19 08:03:21,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-19 08:03:21,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2220 transitions. [2022-11-19 08:03:21,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-19 08:03:21,868 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:03:21,868 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:03:21,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-19 08:03:22,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:22,083 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:03:22,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:03:22,083 INFO L85 PathProgramCache]: Analyzing trace with hash -248060140, now seen corresponding path program 1 times [2022-11-19 08:03:22,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:03:22,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [359028090] [2022-11-19 08:03:22,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:03:22,085 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:22,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:03:22,087 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:03:22,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-11-19 08:03:23,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:03:23,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 1059 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:03:23,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:03:25,734 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-19 08:03:25,735 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:03:25,735 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:03:25,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [359028090] [2022-11-19 08:03:25,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [359028090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:03:25,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:03:25,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:03:25,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696844148] [2022-11-19 08:03:25,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:03:25,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:03:25,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:03:25,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:03:25,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:03:25,737 INFO L87 Difference]: Start difference. First operand 1691 states and 2220 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-19 08:03:26,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:03:26,099 INFO L93 Difference]: Finished difference Result 1691 states and 2220 transitions. [2022-11-19 08:03:26,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:03:26,102 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 145 [2022-11-19 08:03:26,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:03:26,106 INFO L225 Difference]: With dead ends: 1691 [2022-11-19 08:03:26,106 INFO L226 Difference]: Without dead ends: 1689 [2022-11-19 08:03:26,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:03:26,108 INFO L413 NwaCegarLoop]: 2194 mSDtfsCounter, 2068 mSDsluCounter, 2192 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2070 SdHoareTripleChecker+Valid, 4386 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:03:26,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2070 Valid, 4386 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:03:26,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2022-11-19 08:03:26,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 1689. [2022-11-19 08:03:26,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1689 states, 1134 states have (on average 1.2098765432098766) internal successors, (1372), 1186 states have internal predecessors, (1372), 424 states have call successors, (424), 115 states have call predecessors, (424), 114 states have return successors, (422), 408 states have call predecessors, (422), 422 states have call successors, (422) [2022-11-19 08:03:26,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 2218 transitions. [2022-11-19 08:03:26,387 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 2218 transitions. Word has length 145 [2022-11-19 08:03:26,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:03:26,387 INFO L495 AbstractCegarLoop]: Abstraction has 1689 states and 2218 transitions. [2022-11-19 08:03:26,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 3 states have internal predecessors, (87), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-19 08:03:26,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 2218 transitions. [2022-11-19 08:03:26,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-19 08:03:26,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:03:26,389 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:03:26,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-11-19 08:03:26,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:26,602 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:03:26,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:03:26,603 INFO L85 PathProgramCache]: Analyzing trace with hash 506817998, now seen corresponding path program 1 times [2022-11-19 08:03:26,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:03:26,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1232300846] [2022-11-19 08:03:26,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:03:26,605 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:26,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:03:26,606 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:03:26,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-19 08:03:27,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:03:28,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 1068 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:03:28,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:03:29,924 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-19 08:03:29,924 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:03:29,924 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:03:29,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1232300846] [2022-11-19 08:03:29,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1232300846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:03:29,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:03:29,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:03:29,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927980729] [2022-11-19 08:03:29,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:03:29,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:03:29,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:03:29,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:03:29,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:03:29,928 INFO L87 Difference]: Start difference. First operand 1689 states and 2218 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-11-19 08:03:30,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:03:30,272 INFO L93 Difference]: Finished difference Result 1689 states and 2218 transitions. [2022-11-19 08:03:30,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:03:30,273 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 151 [2022-11-19 08:03:30,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:03:30,278 INFO L225 Difference]: With dead ends: 1689 [2022-11-19 08:03:30,278 INFO L226 Difference]: Without dead ends: 1687 [2022-11-19 08:03:30,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:03:30,279 INFO L413 NwaCegarLoop]: 2192 mSDtfsCounter, 2060 mSDsluCounter, 2190 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2062 SdHoareTripleChecker+Valid, 4382 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:03:30,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2062 Valid, 4382 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:03:30,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2022-11-19 08:03:30,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 1687. [2022-11-19 08:03:30,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1687 states, 1133 states have (on average 1.209179170344219) internal successors, (1370), 1184 states have internal predecessors, (1370), 424 states have call successors, (424), 115 states have call predecessors, (424), 114 states have return successors, (422), 408 states have call predecessors, (422), 422 states have call successors, (422) [2022-11-19 08:03:30,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 2216 transitions. [2022-11-19 08:03:30,576 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 2216 transitions. Word has length 151 [2022-11-19 08:03:30,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:03:30,577 INFO L495 AbstractCegarLoop]: Abstraction has 1687 states and 2216 transitions. [2022-11-19 08:03:30,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-11-19 08:03:30,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 2216 transitions. [2022-11-19 08:03:30,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-11-19 08:03:30,579 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:03:30,579 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:03:30,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2022-11-19 08:03:30,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:30,795 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:03:30,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:03:30,795 INFO L85 PathProgramCache]: Analyzing trace with hash 2096411684, now seen corresponding path program 1 times [2022-11-19 08:03:30,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:03:30,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [116377288] [2022-11-19 08:03:30,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:03:30,797 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:30,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:03:30,798 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:03:30,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-11-19 08:03:32,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:03:32,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:03:32,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:03:34,371 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-19 08:03:34,371 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:03:34,371 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:03:34,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [116377288] [2022-11-19 08:03:34,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [116377288] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:03:34,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:03:34,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:03:34,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950702818] [2022-11-19 08:03:34,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:03:34,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:03:34,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:03:34,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:03:34,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:03:34,374 INFO L87 Difference]: Start difference. First operand 1687 states and 2216 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2022-11-19 08:03:34,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:03:34,785 INFO L93 Difference]: Finished difference Result 1687 states and 2216 transitions. [2022-11-19 08:03:34,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:03:34,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 157 [2022-11-19 08:03:34,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:03:34,791 INFO L225 Difference]: With dead ends: 1687 [2022-11-19 08:03:34,791 INFO L226 Difference]: Without dead ends: 1685 [2022-11-19 08:03:34,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:03:34,792 INFO L413 NwaCegarLoop]: 2190 mSDtfsCounter, 2052 mSDsluCounter, 2188 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2054 SdHoareTripleChecker+Valid, 4378 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:03:34,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2054 Valid, 4378 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:03:34,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2022-11-19 08:03:35,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1685. [2022-11-19 08:03:35,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1685 states, 1132 states have (on average 1.2084805653710247) internal successors, (1368), 1182 states have internal predecessors, (1368), 424 states have call successors, (424), 115 states have call predecessors, (424), 114 states have return successors, (422), 408 states have call predecessors, (422), 422 states have call successors, (422) [2022-11-19 08:03:35,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1685 states to 1685 states and 2214 transitions. [2022-11-19 08:03:35,266 INFO L78 Accepts]: Start accepts. Automaton has 1685 states and 2214 transitions. Word has length 157 [2022-11-19 08:03:35,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:03:35,267 INFO L495 AbstractCegarLoop]: Abstraction has 1685 states and 2214 transitions. [2022-11-19 08:03:35,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2022-11-19 08:03:35,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1685 states and 2214 transitions. [2022-11-19 08:03:35,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-11-19 08:03:35,268 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:03:35,269 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:03:35,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2022-11-19 08:03:35,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:35,495 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:03:35,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:03:35,495 INFO L85 PathProgramCache]: Analyzing trace with hash 299940847, now seen corresponding path program 1 times [2022-11-19 08:03:35,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:03:35,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1204938630] [2022-11-19 08:03:35,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:03:35,497 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:35,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:03:35,498 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:03:35,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-19 08:03:36,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:03:36,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 1086 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:03:36,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:03:38,921 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-19 08:03:38,922 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:03:38,922 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:03:38,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1204938630] [2022-11-19 08:03:38,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1204938630] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:03:38,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:03:38,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:03:38,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072810431] [2022-11-19 08:03:38,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:03:38,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:03:38,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:03:38,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:03:38,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:03:38,924 INFO L87 Difference]: Start difference. First operand 1685 states and 2214 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-11-19 08:03:39,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:03:39,341 INFO L93 Difference]: Finished difference Result 1685 states and 2214 transitions. [2022-11-19 08:03:39,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:03:39,342 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 163 [2022-11-19 08:03:39,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:03:39,347 INFO L225 Difference]: With dead ends: 1685 [2022-11-19 08:03:39,347 INFO L226 Difference]: Without dead ends: 1683 [2022-11-19 08:03:39,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:03:39,348 INFO L413 NwaCegarLoop]: 2188 mSDtfsCounter, 2044 mSDsluCounter, 2186 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2046 SdHoareTripleChecker+Valid, 4374 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:03:39,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2046 Valid, 4374 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:03:39,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1683 states. [2022-11-19 08:03:39,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1683 to 1683. [2022-11-19 08:03:39,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1683 states, 1131 states have (on average 1.2077807250221044) internal successors, (1366), 1180 states have internal predecessors, (1366), 424 states have call successors, (424), 115 states have call predecessors, (424), 114 states have return successors, (422), 408 states have call predecessors, (422), 422 states have call successors, (422) [2022-11-19 08:03:39,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 2212 transitions. [2022-11-19 08:03:39,829 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 2212 transitions. Word has length 163 [2022-11-19 08:03:39,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:03:39,830 INFO L495 AbstractCegarLoop]: Abstraction has 1683 states and 2212 transitions. [2022-11-19 08:03:39,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 3 states have internal predecessors, (99), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-11-19 08:03:39,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 2212 transitions. [2022-11-19 08:03:39,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-11-19 08:03:39,833 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:03:39,833 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:03:39,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2022-11-19 08:03:40,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:40,043 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:03:40,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:03:40,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1694918847, now seen corresponding path program 1 times [2022-11-19 08:03:40,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:03:40,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [169960582] [2022-11-19 08:03:40,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:03:40,045 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:40,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:03:40,046 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:03:40,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-11-19 08:03:41,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:03:41,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 1095 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:03:41,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:03:43,616 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-19 08:03:43,616 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:03:43,616 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:03:43,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [169960582] [2022-11-19 08:03:43,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [169960582] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:03:43,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:03:43,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:03:43,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332912693] [2022-11-19 08:03:43,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:03:43,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:03:43,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:03:43,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:03:43,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:03:43,619 INFO L87 Difference]: Start difference. First operand 1683 states and 2212 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-19 08:03:43,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:03:43,988 INFO L93 Difference]: Finished difference Result 1683 states and 2212 transitions. [2022-11-19 08:03:43,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:03:43,988 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 169 [2022-11-19 08:03:43,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:03:43,995 INFO L225 Difference]: With dead ends: 1683 [2022-11-19 08:03:43,995 INFO L226 Difference]: Without dead ends: 1681 [2022-11-19 08:03:43,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:03:43,997 INFO L413 NwaCegarLoop]: 2186 mSDtfsCounter, 2036 mSDsluCounter, 2184 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2038 SdHoareTripleChecker+Valid, 4370 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:03:43,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2038 Valid, 4370 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:03:44,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1681 states. [2022-11-19 08:03:44,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1681 to 1681. [2022-11-19 08:03:44,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1681 states, 1130 states have (on average 1.2070796460176991) internal successors, (1364), 1178 states have internal predecessors, (1364), 424 states have call successors, (424), 115 states have call predecessors, (424), 114 states have return successors, (422), 408 states have call predecessors, (422), 422 states have call successors, (422) [2022-11-19 08:03:44,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1681 states to 1681 states and 2210 transitions. [2022-11-19 08:03:44,485 INFO L78 Accepts]: Start accepts. Automaton has 1681 states and 2210 transitions. Word has length 169 [2022-11-19 08:03:44,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:03:44,485 INFO L495 AbstractCegarLoop]: Abstraction has 1681 states and 2210 transitions. [2022-11-19 08:03:44,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-19 08:03:44,486 INFO L276 IsEmpty]: Start isEmpty. Operand 1681 states and 2210 transitions. [2022-11-19 08:03:44,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-11-19 08:03:44,488 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:03:44,488 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:03:44,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2022-11-19 08:03:44,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:44,691 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:03:44,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:03:44,691 INFO L85 PathProgramCache]: Analyzing trace with hash 330887649, now seen corresponding path program 1 times [2022-11-19 08:03:44,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:03:44,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1491164653] [2022-11-19 08:03:44,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:03:44,692 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:44,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:03:44,693 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:03:44,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-19 08:03:46,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:03:46,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 1396 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:03:46,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:03:47,405 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2022-11-19 08:03:47,405 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:03:47,405 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:03:47,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1491164653] [2022-11-19 08:03:47,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1491164653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:03:47,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:03:47,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:03:47,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846523159] [2022-11-19 08:03:47,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:03:47,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:03:47,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:03:47,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:03:47,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:03:47,407 INFO L87 Difference]: Start difference. First operand 1681 states and 2210 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-19 08:03:47,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:03:47,822 INFO L93 Difference]: Finished difference Result 3187 states and 4166 transitions. [2022-11-19 08:03:47,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:03:47,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 214 [2022-11-19 08:03:47,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:03:47,827 INFO L225 Difference]: With dead ends: 3187 [2022-11-19 08:03:47,827 INFO L226 Difference]: Without dead ends: 1677 [2022-11-19 08:03:47,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:03:47,831 INFO L413 NwaCegarLoop]: 2182 mSDtfsCounter, 2117 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2117 SdHoareTripleChecker+Valid, 2182 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:03:47,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2117 Valid, 2182 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:03:47,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1677 states. [2022-11-19 08:03:48,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1677 to 1677. [2022-11-19 08:03:48,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1677 states, 1127 states have (on average 1.2058562555456966) internal successors, (1359), 1174 states have internal predecessors, (1359), 424 states have call successors, (424), 115 states have call predecessors, (424), 114 states have return successors, (422), 408 states have call predecessors, (422), 422 states have call successors, (422) [2022-11-19 08:03:48,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1677 states to 1677 states and 2205 transitions. [2022-11-19 08:03:48,162 INFO L78 Accepts]: Start accepts. Automaton has 1677 states and 2205 transitions. Word has length 214 [2022-11-19 08:03:48,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:03:48,163 INFO L495 AbstractCegarLoop]: Abstraction has 1677 states and 2205 transitions. [2022-11-19 08:03:48,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-19 08:03:48,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1677 states and 2205 transitions. [2022-11-19 08:03:48,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-19 08:03:48,165 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:03:48,166 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:03:48,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-11-19 08:03:48,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:48,379 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:03:48,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:03:48,379 INFO L85 PathProgramCache]: Analyzing trace with hash 749670668, now seen corresponding path program 1 times [2022-11-19 08:03:48,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:03:48,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005030849] [2022-11-19 08:03:48,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:03:48,381 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:48,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:03:48,382 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:03:48,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2022-11-19 08:03:49,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:03:49,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 1104 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:03:49,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:03:51,748 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-19 08:03:51,748 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:03:51,749 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:03:51,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005030849] [2022-11-19 08:03:51,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005030849] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:03:51,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:03:51,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:03:51,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731972901] [2022-11-19 08:03:51,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:03:51,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:03:51,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:03:51,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:03:51,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:03:51,750 INFO L87 Difference]: Start difference. First operand 1677 states and 2205 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2022-11-19 08:03:52,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:03:52,518 INFO L93 Difference]: Finished difference Result 3253 states and 4287 transitions. [2022-11-19 08:03:52,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:03:52,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2022-11-19 08:03:52,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:03:52,533 INFO L225 Difference]: With dead ends: 3253 [2022-11-19 08:03:52,533 INFO L226 Difference]: Without dead ends: 3251 [2022-11-19 08:03:52,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:03:52,534 INFO L413 NwaCegarLoop]: 2575 mSDtfsCounter, 2021 mSDsluCounter, 4652 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2023 SdHoareTripleChecker+Valid, 7227 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:03:52,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2023 Valid, 7227 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:03:52,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3251 states. [2022-11-19 08:03:53,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3251 to 3216. [2022-11-19 08:03:53,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3216 states, 2161 states have (on average 1.2063859324386859) internal successors, (2607), 2244 states have internal predecessors, (2607), 817 states have call successors, (817), 227 states have call predecessors, (817), 226 states have return successors, (834), 785 states have call predecessors, (834), 815 states have call successors, (834) [2022-11-19 08:03:53,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3216 states to 3216 states and 4258 transitions. [2022-11-19 08:03:53,483 INFO L78 Accepts]: Start accepts. Automaton has 3216 states and 4258 transitions. Word has length 175 [2022-11-19 08:03:53,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:03:53,484 INFO L495 AbstractCegarLoop]: Abstraction has 3216 states and 4258 transitions. [2022-11-19 08:03:53,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 3 states have internal predecessors, (107), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2022-11-19 08:03:53,484 INFO L276 IsEmpty]: Start isEmpty. Operand 3216 states and 4258 transitions. [2022-11-19 08:03:53,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-11-19 08:03:53,486 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:03:53,486 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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] [2022-11-19 08:03:53,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2022-11-19 08:03:53,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:53,703 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:03:53,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:03:53,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1709449648, now seen corresponding path program 1 times [2022-11-19 08:03:53,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:03:53,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1430211654] [2022-11-19 08:03:53,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:03:53,704 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:53,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:03:53,707 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:03:53,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-11-19 08:03:55,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:03:55,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 1405 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:03:55,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:03:56,167 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2022-11-19 08:03:56,167 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:03:56,167 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:03:56,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1430211654] [2022-11-19 08:03:56,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1430211654] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:03:56,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:03:56,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:03:56,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276154224] [2022-11-19 08:03:56,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:03:56,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:03:56,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:03:56,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:03:56,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:03:56,170 INFO L87 Difference]: Start difference. First operand 3216 states and 4258 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-19 08:03:56,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:03:56,906 INFO L93 Difference]: Finished difference Result 6190 states and 8149 transitions. [2022-11-19 08:03:56,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:03:56,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 220 [2022-11-19 08:03:56,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:03:56,921 INFO L225 Difference]: With dead ends: 6190 [2022-11-19 08:03:56,921 INFO L226 Difference]: Without dead ends: 3221 [2022-11-19 08:03:56,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:03:56,930 INFO L413 NwaCegarLoop]: 2192 mSDtfsCounter, 2106 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2106 SdHoareTripleChecker+Valid, 2214 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:03:56,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2106 Valid, 2214 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:03:56,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3221 states. [2022-11-19 08:03:58,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3221 to 3220. [2022-11-19 08:03:58,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3220 states, 2163 states have (on average 1.2043458159963014) internal successors, (2605), 2245 states have internal predecessors, (2605), 817 states have call successors, (817), 230 states have call predecessors, (817), 229 states have return successors, (834), 785 states have call predecessors, (834), 815 states have call successors, (834) [2022-11-19 08:03:58,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3220 states to 3220 states and 4256 transitions. [2022-11-19 08:03:58,209 INFO L78 Accepts]: Start accepts. Automaton has 3220 states and 4256 transitions. Word has length 220 [2022-11-19 08:03:58,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:03:58,209 INFO L495 AbstractCegarLoop]: Abstraction has 3220 states and 4256 transitions. [2022-11-19 08:03:58,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-11-19 08:03:58,210 INFO L276 IsEmpty]: Start isEmpty. Operand 3220 states and 4256 transitions. [2022-11-19 08:03:58,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-11-19 08:03:58,211 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:03:58,212 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:03:58,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2022-11-19 08:03:58,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:58,425 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:03:58,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:03:58,425 INFO L85 PathProgramCache]: Analyzing trace with hash 527015636, now seen corresponding path program 1 times [2022-11-19 08:03:58,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:03:58,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [450187258] [2022-11-19 08:03:58,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:03:58,426 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:58,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:03:58,427 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:03:58,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2022-11-19 08:03:59,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:03:59,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 1113 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:03:59,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:04:01,593 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-19 08:04:01,593 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:04:01,593 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:04:01,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [450187258] [2022-11-19 08:04:01,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [450187258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:04:01,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:04:01,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:04:01,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127980260] [2022-11-19 08:04:01,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:04:01,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:04:01,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:04:01,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:04:01,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:04:01,595 INFO L87 Difference]: Start difference. First operand 3220 states and 4256 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-19 08:04:02,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:04:02,290 INFO L93 Difference]: Finished difference Result 3220 states and 4256 transitions. [2022-11-19 08:04:02,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:04:02,291 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 181 [2022-11-19 08:04:02,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:04:02,300 INFO L225 Difference]: With dead ends: 3220 [2022-11-19 08:04:02,301 INFO L226 Difference]: Without dead ends: 3218 [2022-11-19 08:04:02,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:04:02,303 INFO L413 NwaCegarLoop]: 2174 mSDtfsCounter, 2012 mSDsluCounter, 2172 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2014 SdHoareTripleChecker+Valid, 4346 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:04:02,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2014 Valid, 4346 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:04:02,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3218 states. [2022-11-19 08:04:03,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3218 to 3218. [2022-11-19 08:04:03,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3218 states, 2162 states have (on average 1.2039777983348752) internal successors, (2603), 2243 states have internal predecessors, (2603), 817 states have call successors, (817), 230 states have call predecessors, (817), 229 states have return successors, (834), 785 states have call predecessors, (834), 815 states have call successors, (834) [2022-11-19 08:04:03,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3218 states to 3218 states and 4254 transitions. [2022-11-19 08:04:03,087 INFO L78 Accepts]: Start accepts. Automaton has 3218 states and 4254 transitions. Word has length 181 [2022-11-19 08:04:03,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:04:03,088 INFO L495 AbstractCegarLoop]: Abstraction has 3218 states and 4254 transitions. [2022-11-19 08:04:03,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-19 08:04:03,088 INFO L276 IsEmpty]: Start isEmpty. Operand 3218 states and 4254 transitions. [2022-11-19 08:04:03,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-19 08:04:03,090 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:04:03,090 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:04:03,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2022-11-19 08:04:03,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:04:03,307 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:04:03,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:04:03,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1315415206, now seen corresponding path program 1 times [2022-11-19 08:04:03,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:04:03,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1340305520] [2022-11-19 08:04:03,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:04:03,309 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:04:03,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:04:03,310 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:04:03,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-11-19 08:04:04,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:04:04,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 1122 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:04:04,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:04:06,653 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-19 08:04:06,654 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:04:06,654 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:04:06,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1340305520] [2022-11-19 08:04:06,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1340305520] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:04:06,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:04:06,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:04:06,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842839296] [2022-11-19 08:04:06,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:04:06,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:04:06,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:04:06,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:04:06,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:04:06,657 INFO L87 Difference]: Start difference. First operand 3218 states and 4254 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2022-11-19 08:04:08,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:04:08,198 INFO L93 Difference]: Finished difference Result 6325 states and 8420 transitions. [2022-11-19 08:04:08,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:04:08,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) Word has length 187 [2022-11-19 08:04:08,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:04:08,218 INFO L225 Difference]: With dead ends: 6325 [2022-11-19 08:04:08,218 INFO L226 Difference]: Without dead ends: 6115 [2022-11-19 08:04:08,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:04:08,222 INFO L413 NwaCegarLoop]: 2567 mSDtfsCounter, 2001 mSDsluCounter, 4639 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2001 SdHoareTripleChecker+Valid, 7206 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:04:08,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2001 Valid, 7206 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:04:08,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6115 states. [2022-11-19 08:04:09,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6115 to 6093. [2022-11-19 08:04:09,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6093 states, 4099 states have (on average 1.2093193461819955) internal successors, (4957), 4248 states have internal predecessors, (4957), 1555 states have call successors, (1555), 431 states have call predecessors, (1555), 429 states have return successors, (1650), 1493 states have call predecessors, (1650), 1551 states have call successors, (1650) [2022-11-19 08:04:09,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6093 states to 6093 states and 8162 transitions. [2022-11-19 08:04:09,795 INFO L78 Accepts]: Start accepts. Automaton has 6093 states and 8162 transitions. Word has length 187 [2022-11-19 08:04:09,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:04:09,795 INFO L495 AbstractCegarLoop]: Abstraction has 6093 states and 8162 transitions. [2022-11-19 08:04:09,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2022-11-19 08:04:09,796 INFO L276 IsEmpty]: Start isEmpty. Operand 6093 states and 8162 transitions. [2022-11-19 08:04:09,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-11-19 08:04:09,797 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:04:09,798 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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] [2022-11-19 08:04:09,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2022-11-19 08:04:10,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:04:10,005 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:04:10,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:04:10,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1629689094, now seen corresponding path program 1 times [2022-11-19 08:04:10,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:04:10,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1455293276] [2022-11-19 08:04:10,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:04:10,007 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:04:10,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:04:10,008 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:04:10,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2022-11-19 08:04:11,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:04:11,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 1566 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-19 08:04:11,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:04:13,007 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2022-11-19 08:04:13,008 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:04:13,008 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:04:13,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1455293276] [2022-11-19 08:04:13,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1455293276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:04:13,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:04:13,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-19 08:04:13,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834715790] [2022-11-19 08:04:13,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:04:13,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 08:04:13,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:04:13,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 08:04:13,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-19 08:04:13,010 INFO L87 Difference]: Start difference. First operand 6093 states and 8162 transitions. Second operand has 10 states, 10 states have (on average 9.0) internal successors, (90), 8 states have internal predecessors, (90), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (27), 5 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-19 08:04:16,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:04:16,828 INFO L93 Difference]: Finished difference Result 13169 states and 17818 transitions. [2022-11-19 08:04:16,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-19 08:04:16,829 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 8 states have internal predecessors, (90), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (27), 5 states have call predecessors, (27), 3 states have call successors, (27) Word has length 239 [2022-11-19 08:04:16,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:04:16,859 INFO L225 Difference]: With dead ends: 13169 [2022-11-19 08:04:16,860 INFO L226 Difference]: Without dead ends: 7116 [2022-11-19 08:04:16,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-19 08:04:16,881 INFO L413 NwaCegarLoop]: 2294 mSDtfsCounter, 203 mSDsluCounter, 18181 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 20475 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:04:16,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 20475 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-19 08:04:16,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7116 states. [2022-11-19 08:04:18,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7116 to 6105. [2022-11-19 08:04:18,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6105 states, 4108 states have (on average 1.2088607594936709) internal successors, (4966), 4257 states have internal predecessors, (4966), 1556 states have call successors, (1556), 431 states have call predecessors, (1556), 431 states have return successors, (1657), 1496 states have call predecessors, (1657), 1552 states have call successors, (1657) [2022-11-19 08:04:18,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6105 states to 6105 states and 8179 transitions. [2022-11-19 08:04:18,660 INFO L78 Accepts]: Start accepts. Automaton has 6105 states and 8179 transitions. Word has length 239 [2022-11-19 08:04:18,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:04:18,661 INFO L495 AbstractCegarLoop]: Abstraction has 6105 states and 8179 transitions. [2022-11-19 08:04:18,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 8 states have internal predecessors, (90), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (27), 5 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-19 08:04:18,661 INFO L276 IsEmpty]: Start isEmpty. Operand 6105 states and 8179 transitions. [2022-11-19 08:04:18,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-11-19 08:04:18,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:04:18,663 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 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] [2022-11-19 08:04:18,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2022-11-19 08:04:18,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:04:18,879 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 31 more)] === [2022-11-19 08:04:18,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:04:18,879 INFO L85 PathProgramCache]: Analyzing trace with hash -68490569, now seen corresponding path program 1 times [2022-11-19 08:04:18,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:04:18,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [644475386] [2022-11-19 08:04:18,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:04:18,881 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:04:18,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:04:18,881 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:04:18,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e5c37c8-5901-4e45-9866-53119b588884/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2022-11-19 08:04:20,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:04:21,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 1613 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-19 08:04:21,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:04:24,508 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2022-11-19 08:04:24,508 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:04:24,508 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:04:24,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [644475386] [2022-11-19 08:04:24,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [644475386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:04:24,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:04:24,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-11-19 08:04:24,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108354344] [2022-11-19 08:04:24,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:04:24,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-19 08:04:24,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:04:24,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-19 08:04:24,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-11-19 08:04:24,511 INFO L87 Difference]: Start difference. First operand 6105 states and 8179 transitions. Second operand has 18 states, 16 states have (on average 6.25) internal successors, (100), 14 states have internal predecessors, (100), 6 states have call successors, (37), 2 states have call predecessors, (37), 6 states have return successors, (31), 9 states have call predecessors, (31), 6 states have call successors, (31)