./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--s3fb.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 26f15b7e6740f578c6e54d216b7f2e3d14f4b637cdec8f40f3de59ca32c0137e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:38:57,629 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:38:57,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:38:57,686 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:38:57,686 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:38:57,688 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:38:57,690 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:38:57,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:38:57,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:38:57,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:38:57,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:38:57,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:38:57,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:38:57,701 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:38:57,703 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:38:57,704 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:38:57,713 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:38:57,714 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:38:57,717 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:38:57,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:38:57,722 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:38:57,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:38:57,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:38:57,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:38:57,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:38:57,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:38:57,732 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:38:57,733 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:38:57,734 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:38:57,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:38:57,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:38:57,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:38:57,739 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:38:57,762 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:38:57,763 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:38:57,764 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:38:57,764 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:38:57,765 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:38:57,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:38:57,767 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:38:57,767 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:38:57,770 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 01:38:57,814 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:38:57,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:38:57,815 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:38:57,815 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:38:57,816 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:38:57,817 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:38:57,817 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:38:57,817 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:38:57,817 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:38:57,817 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:38:57,819 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:38:57,819 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:38:57,819 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:38:57,819 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:38:57,820 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:38:57,820 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:38:57,820 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:38:57,820 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:38:57,822 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:38:57,822 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:38:57,822 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:38:57,822 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:38:57,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:38:57,823 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:38:57,823 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:38:57,823 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:38:57,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:38:57,826 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:38:57,826 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:38:57,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:38:57,826 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:38:57,827 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:38:57,827 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:38:57,827 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:38:57,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:38:57,827 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:38:57,827 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:38:57,828 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:38:57,828 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26f15b7e6740f578c6e54d216b7f2e3d14f4b637cdec8f40f3de59ca32c0137e [2021-11-21 01:38:58,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:38:58,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:38:58,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:38:58,154 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:38:58,155 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:38:58,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i [2021-11-21 01:38:58,227 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/data/e5cfd857b/97a555809f2249e58d110702595a1b18/FLAG313c4c845 [2021-11-21 01:38:59,372 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:38:59,374 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i [2021-11-21 01:38:59,434 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/data/e5cfd857b/97a555809f2249e58d110702595a1b18/FLAG313c4c845 [2021-11-21 01:38:59,737 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/data/e5cfd857b/97a555809f2249e58d110702595a1b18 [2021-11-21 01:38:59,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:38:59,740 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:38:59,742 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:38:59,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:38:59,746 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:38:59,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:38:59" (1/1) ... [2021-11-21 01:38:59,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@552c034d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:38:59, skipping insertion in model container [2021-11-21 01:38:59,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:38:59" (1/1) ... [2021-11-21 01:38:59,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:38:59,965 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:39:03,706 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[328297,328310] [2021-11-21 01:39:03,709 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[328442,328455] [2021-11-21 01:39:03,709 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[328588,328601] [2021-11-21 01:39:03,710 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[328753,328766] [2021-11-21 01:39:03,710 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[328911,328924] [2021-11-21 01:39:03,711 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[329069,329082] [2021-11-21 01:39:03,711 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[329227,329240] [2021-11-21 01:39:03,712 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[329387,329400] [2021-11-21 01:39:03,712 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[329546,329559] [2021-11-21 01:39:03,713 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[329685,329698] [2021-11-21 01:39:03,713 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[329827,329840] [2021-11-21 01:39:03,714 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[329976,329989] [2021-11-21 01:39:03,714 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[330115,330128] [2021-11-21 01:39:03,715 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[330270,330283] [2021-11-21 01:39:03,715 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[330430,330443] [2021-11-21 01:39:03,716 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[330581,330594] [2021-11-21 01:39:03,716 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[330732,330745] [2021-11-21 01:39:03,717 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[330884,330897] [2021-11-21 01:39:03,717 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[331033,331046] [2021-11-21 01:39:03,718 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[331181,331194] [2021-11-21 01:39:03,718 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[331338,331351] [2021-11-21 01:39:03,719 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[331487,331500] [2021-11-21 01:39:03,719 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[331643,331656] [2021-11-21 01:39:03,720 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[331796,331809] [2021-11-21 01:39:03,720 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[331942,331955] [2021-11-21 01:39:03,720 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[332085,332098] [2021-11-21 01:39:03,721 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[332237,332250] [2021-11-21 01:39:03,721 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[332383,332396] [2021-11-21 01:39:03,722 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[332528,332541] [2021-11-21 01:39:03,722 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[332682,332695] [2021-11-21 01:39:03,723 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[332833,332846] [2021-11-21 01:39:03,723 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[332988,333001] [2021-11-21 01:39:03,724 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[333140,333153] [2021-11-21 01:39:03,724 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[333295,333308] [2021-11-21 01:39:03,725 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[333459,333472] [2021-11-21 01:39:03,725 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[333615,333628] [2021-11-21 01:39:03,726 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[333779,333792] [2021-11-21 01:39:03,726 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[333921,333934] [2021-11-21 01:39:03,727 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[334079,334092] [2021-11-21 01:39:03,727 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[334246,334259] [2021-11-21 01:39:03,728 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[334405,334418] [2021-11-21 01:39:03,728 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[334564,334577] [2021-11-21 01:39:03,729 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[334713,334726] [2021-11-21 01:39:03,729 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[334860,334873] [2021-11-21 01:39:03,729 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[334999,335012] [2021-11-21 01:39:03,730 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[335162,335175] [2021-11-21 01:39:03,730 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[335328,335341] [2021-11-21 01:39:03,731 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[335492,335505] [2021-11-21 01:39:03,731 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[335657,335670] [2021-11-21 01:39:03,732 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[335822,335835] [2021-11-21 01:39:03,732 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[335988,336001] [2021-11-21 01:39:03,733 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[336153,336166] [2021-11-21 01:39:03,733 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[336320,336333] [2021-11-21 01:39:03,734 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[336480,336493] [2021-11-21 01:39:03,734 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[336642,336655] [2021-11-21 01:39:03,735 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[336801,336814] [2021-11-21 01:39:03,735 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[336947,336960] [2021-11-21 01:39:03,736 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[337090,337103] [2021-11-21 01:39:03,736 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[337234,337247] [2021-11-21 01:39:03,736 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[337377,337390] [2021-11-21 01:39:03,737 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[337521,337534] [2021-11-21 01:39:03,737 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[337662,337675] [2021-11-21 01:39:03,738 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[337800,337813] [2021-11-21 01:39:03,738 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[337958,337971] [2021-11-21 01:39:03,739 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[338117,338130] [2021-11-21 01:39:03,739 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[338273,338286] [2021-11-21 01:39:03,740 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[338422,338435] [2021-11-21 01:39:03,740 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[338574,338587] [2021-11-21 01:39:03,741 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[338725,338738] [2021-11-21 01:39:03,741 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[338874,338887] [2021-11-21 01:39:03,742 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[339026,339039] [2021-11-21 01:39:03,742 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[339174,339187] [2021-11-21 01:39:03,743 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[339327,339340] [2021-11-21 01:39:03,743 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[339478,339491] [2021-11-21 01:39:03,744 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[339628,339641] [2021-11-21 01:39:03,744 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[339775,339788] [2021-11-21 01:39:03,744 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[339926,339939] [2021-11-21 01:39:03,745 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[340077,340090] [2021-11-21 01:39:03,745 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[340225,340238] [2021-11-21 01:39:03,746 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[340391,340404] [2021-11-21 01:39:03,746 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[340560,340573] [2021-11-21 01:39:03,769 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[340727,340740] [2021-11-21 01:39:03,769 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[340895,340908] [2021-11-21 01:39:03,769 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[341045,341058] [2021-11-21 01:39:03,771 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[341192,341205] [2021-11-21 01:39:03,772 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[341353,341366] [2021-11-21 01:39:03,773 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[341523,341536] [2021-11-21 01:39:03,774 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[341685,341698] [2021-11-21 01:39:03,783 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:39:03,852 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:39:04,184 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[328297,328310] [2021-11-21 01:39:04,186 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[328442,328455] [2021-11-21 01:39:04,190 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[328588,328601] [2021-11-21 01:39:04,191 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[328753,328766] [2021-11-21 01:39:04,192 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[328911,328924] [2021-11-21 01:39:04,192 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[329069,329082] [2021-11-21 01:39:04,192 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[329227,329240] [2021-11-21 01:39:04,193 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[329387,329400] [2021-11-21 01:39:04,193 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[329546,329559] [2021-11-21 01:39:04,194 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[329685,329698] [2021-11-21 01:39:04,195 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[329827,329840] [2021-11-21 01:39:04,195 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[329976,329989] [2021-11-21 01:39:04,196 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[330115,330128] [2021-11-21 01:39:04,196 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[330270,330283] [2021-11-21 01:39:04,197 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[330430,330443] [2021-11-21 01:39:04,197 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[330581,330594] [2021-11-21 01:39:04,198 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[330732,330745] [2021-11-21 01:39:04,198 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[330884,330897] [2021-11-21 01:39:04,199 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[331033,331046] [2021-11-21 01:39:04,199 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[331181,331194] [2021-11-21 01:39:04,199 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[331338,331351] [2021-11-21 01:39:04,200 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[331487,331500] [2021-11-21 01:39:04,201 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[331643,331656] [2021-11-21 01:39:04,202 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[331796,331809] [2021-11-21 01:39:04,202 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[331942,331955] [2021-11-21 01:39:04,203 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[332085,332098] [2021-11-21 01:39:04,203 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[332237,332250] [2021-11-21 01:39:04,204 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[332383,332396] [2021-11-21 01:39:04,204 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[332528,332541] [2021-11-21 01:39:04,205 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[332682,332695] [2021-11-21 01:39:04,205 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[332833,332846] [2021-11-21 01:39:04,206 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[332988,333001] [2021-11-21 01:39:04,207 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[333140,333153] [2021-11-21 01:39:04,207 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[333295,333308] [2021-11-21 01:39:04,208 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[333459,333472] [2021-11-21 01:39:04,208 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[333615,333628] [2021-11-21 01:39:04,209 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[333779,333792] [2021-11-21 01:39:04,210 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[333921,333934] [2021-11-21 01:39:04,211 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[334079,334092] [2021-11-21 01:39:04,211 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[334246,334259] [2021-11-21 01:39:04,213 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[334405,334418] [2021-11-21 01:39:04,213 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[334564,334577] [2021-11-21 01:39:04,214 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[334713,334726] [2021-11-21 01:39:04,214 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[334860,334873] [2021-11-21 01:39:04,215 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[334999,335012] [2021-11-21 01:39:04,215 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[335162,335175] [2021-11-21 01:39:04,216 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[335328,335341] [2021-11-21 01:39:04,216 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[335492,335505] [2021-11-21 01:39:04,217 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[335657,335670] [2021-11-21 01:39:04,217 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[335822,335835] [2021-11-21 01:39:04,218 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[335988,336001] [2021-11-21 01:39:04,218 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[336153,336166] [2021-11-21 01:39:04,219 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[336320,336333] [2021-11-21 01:39:04,219 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[336480,336493] [2021-11-21 01:39:04,220 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[336642,336655] [2021-11-21 01:39:04,222 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[336801,336814] [2021-11-21 01:39:04,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[336947,336960] [2021-11-21 01:39:04,229 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[337090,337103] [2021-11-21 01:39:04,230 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[337234,337247] [2021-11-21 01:39:04,231 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[337377,337390] [2021-11-21 01:39:04,232 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[337521,337534] [2021-11-21 01:39:04,233 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[337662,337675] [2021-11-21 01:39:04,234 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[337800,337813] [2021-11-21 01:39:04,234 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[337958,337971] [2021-11-21 01:39:04,235 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[338117,338130] [2021-11-21 01:39:04,241 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[338273,338286] [2021-11-21 01:39:04,244 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[338422,338435] [2021-11-21 01:39:04,245 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[338574,338587] [2021-11-21 01:39:04,246 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[338725,338738] [2021-11-21 01:39:04,246 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[338874,338887] [2021-11-21 01:39:04,246 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[339026,339039] [2021-11-21 01:39:04,247 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[339174,339187] [2021-11-21 01:39:04,247 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[339327,339340] [2021-11-21 01:39:04,248 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[339478,339491] [2021-11-21 01:39:04,248 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[339628,339641] [2021-11-21 01:39:04,249 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[339775,339788] [2021-11-21 01:39:04,249 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[339926,339939] [2021-11-21 01:39:04,249 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[340077,340090] [2021-11-21 01:39:04,251 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[340225,340238] [2021-11-21 01:39:04,252 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[340391,340404] [2021-11-21 01:39:04,252 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[340560,340573] [2021-11-21 01:39:04,254 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[340727,340740] [2021-11-21 01:39:04,254 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[340895,340908] [2021-11-21 01:39:04,255 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[341045,341058] [2021-11-21 01:39:04,255 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[341192,341205] [2021-11-21 01:39:04,255 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[341353,341366] [2021-11-21 01:39:04,256 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[341523,341536] [2021-11-21 01:39:04,256 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i[341685,341698] [2021-11-21 01:39:04,264 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:39:04,571 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:39:04,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:04 WrapperNode [2021-11-21 01:39:04,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:39:04,573 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:39:04,573 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:39:04,573 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:39:04,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:04" (1/1) ... [2021-11-21 01:39:04,708 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:04" (1/1) ... [2021-11-21 01:39:04,976 INFO L137 Inliner]: procedures = 583, calls = 2557, calls flagged for inlining = 277, calls inlined = 189, statements flattened = 5198 [2021-11-21 01:39:04,976 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:39:04,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:39:04,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:39:04,977 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:39:04,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:04" (1/1) ... [2021-11-21 01:39:04,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:04" (1/1) ... [2021-11-21 01:39:05,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:04" (1/1) ... [2021-11-21 01:39:05,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:04" (1/1) ... [2021-11-21 01:39:05,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:04" (1/1) ... [2021-11-21 01:39:05,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:04" (1/1) ... [2021-11-21 01:39:05,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:04" (1/1) ... [2021-11-21 01:39:05,242 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:39:05,243 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:39:05,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:39:05,244 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:39:05,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:04" (1/1) ... [2021-11-21 01:39:05,323 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:39:05,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:39:05,356 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:39:05,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:39:05,406 INFO L130 BoogieDeclarations]: Found specification of procedure svga_wcrt_mask [2021-11-21 01:39:05,407 INFO L138 BoogieDeclarations]: Found implementation of procedure svga_wcrt_mask [2021-11-21 01:39:05,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-21 01:39:05,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-21 01:39:05,407 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-21 01:39:05,407 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-21 01:39:05,407 INFO L130 BoogieDeclarations]: Found specification of procedure s3fb_ddc_needs_mmio [2021-11-21 01:39:05,408 INFO L138 BoogieDeclarations]: Found implementation of procedure s3fb_ddc_needs_mmio [2021-11-21 01:39:05,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 01:39:05,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 01:39:05,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-21 01:39:05,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-21 01:39:05,410 INFO L130 BoogieDeclarations]: Found specification of procedure s3fb_ddc_read [2021-11-21 01:39:05,410 INFO L138 BoogieDeclarations]: Found implementation of procedure s3fb_ddc_read [2021-11-21 01:39:05,410 INFO L130 BoogieDeclarations]: Found specification of procedure s3fb_set_par [2021-11-21 01:39:05,410 INFO L138 BoogieDeclarations]: Found implementation of procedure s3fb_set_par [2021-11-21 01:39:05,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-21 01:39:05,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-21 01:39:05,411 INFO L130 BoogieDeclarations]: Found specification of procedure svga_compute_pll [2021-11-21 01:39:05,411 INFO L138 BoogieDeclarations]: Found implementation of procedure svga_compute_pll [2021-11-21 01:39:05,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-21 01:39:05,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-21 01:39:05,412 INFO L130 BoogieDeclarations]: Found specification of procedure vga_wcrt [2021-11-21 01:39:05,412 INFO L138 BoogieDeclarations]: Found implementation of procedure vga_wcrt [2021-11-21 01:39:05,412 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-21 01:39:05,412 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-21 01:39:05,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-21 01:39:05,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-21 01:39:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-21 01:39:05,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-21 01:39:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-21 01:39:05,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-21 01:39:05,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:39:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-21 01:39:05,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-21 01:39:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure vga_rseq [2021-11-21 01:39:05,414 INFO L138 BoogieDeclarations]: Found implementation of procedure vga_rseq [2021-11-21 01:39:05,414 INFO L130 BoogieDeclarations]: Found specification of procedure svga_match_format [2021-11-21 01:39:05,414 INFO L138 BoogieDeclarations]: Found implementation of procedure svga_match_format [2021-11-21 01:39:05,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 01:39:05,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-21 01:39:05,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-21 01:39:05,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-21 01:39:05,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-21 01:39:05,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:39:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-21 01:39:05,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-21 01:39:05,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-21 01:39:05,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-21 01:39:05,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-21 01:39:05,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-21 01:39:05,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-21 01:39:05,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-21 01:39:05,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-21 01:39:05,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-21 01:39:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_open_lock_of_s3fb_info [2021-11-21 01:39:05,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_open_lock_of_s3fb_info [2021-11-21 01:39:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure vga_w [2021-11-21 01:39:05,418 INFO L138 BoogieDeclarations]: Found implementation of procedure vga_w [2021-11-21 01:39:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure vga_r [2021-11-21 01:39:05,419 INFO L138 BoogieDeclarations]: Found implementation of procedure vga_r [2021-11-21 01:39:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:39:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure svga_wseq_mask [2021-11-21 01:39:05,419 INFO L138 BoogieDeclarations]: Found implementation of procedure svga_wseq_mask [2021-11-21 01:39:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:39:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-21 01:39:05,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-21 01:39:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:39:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 01:39:05,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 01:39:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_open_lock_of_s3fb_info [2021-11-21 01:39:05,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_open_lock_of_s3fb_info [2021-11-21 01:39:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-21 01:39:05,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-21 01:39:05,427 INFO L130 BoogieDeclarations]: Found specification of procedure vga_w_fast [2021-11-21 01:39:05,428 INFO L138 BoogieDeclarations]: Found implementation of procedure vga_w_fast [2021-11-21 01:39:05,428 INFO L130 BoogieDeclarations]: Found specification of procedure svga_get_tilemax [2021-11-21 01:39:05,428 INFO L138 BoogieDeclarations]: Found implementation of procedure svga_get_tilemax [2021-11-21 01:39:05,428 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_del_adapter [2021-11-21 01:39:05,428 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_del_adapter [2021-11-21 01:39:05,428 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-11-21 01:39:05,429 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-11-21 01:39:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:39:05,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:39:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure svga_wcrt_multi [2021-11-21 01:39:05,429 INFO L138 BoogieDeclarations]: Found implementation of procedure svga_wcrt_multi [2021-11-21 01:39:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure fb_set_suspend [2021-11-21 01:39:05,430 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_set_suspend [2021-11-21 01:39:05,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 01:39:05,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 01:39:05,430 INFO L130 BoogieDeclarations]: Found specification of procedure vga_rcrt [2021-11-21 01:39:05,430 INFO L138 BoogieDeclarations]: Found implementation of procedure vga_rcrt [2021-11-21 01:39:05,430 INFO L130 BoogieDeclarations]: Found specification of procedure framebuffer_release [2021-11-21 01:39:05,431 INFO L138 BoogieDeclarations]: Found implementation of procedure framebuffer_release [2021-11-21 01:39:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2021-11-21 01:39:05,431 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2021-11-21 01:39:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure s3_pci_remove [2021-11-21 01:39:05,431 INFO L138 BoogieDeclarations]: Found implementation of procedure s3_pci_remove [2021-11-21 01:39:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:39:05,432 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:39:05,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_io_mem_unmap [2021-11-21 01:39:05,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_io_mem_unmap [2021-11-21 01:39:05,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-21 01:39:05,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-21 01:39:05,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-21 01:39:05,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-21 01:39:05,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:39:05,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-21 01:39:05,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-21 01:39:05,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:39:05,433 INFO L130 BoogieDeclarations]: Found specification of procedure fb_dealloc_cmap [2021-11-21 01:39:05,433 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_dealloc_cmap [2021-11-21 01:39:05,434 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2021-11-21 01:39:05,434 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2021-11-21 01:39:05,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 01:39:05,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-21 01:39:05,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-21 01:39:05,435 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-21 01:39:05,435 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-21 01:39:05,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-21 01:39:05,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-21 01:39:05,436 INFO L130 BoogieDeclarations]: Found specification of procedure vga_wseq [2021-11-21 01:39:05,436 INFO L138 BoogieDeclarations]: Found implementation of procedure vga_wseq [2021-11-21 01:39:05,436 INFO L130 BoogieDeclarations]: Found specification of procedure s3_pci_resume [2021-11-21 01:39:05,436 INFO L138 BoogieDeclarations]: Found implementation of procedure s3_pci_resume [2021-11-21 01:39:05,437 INFO L130 BoogieDeclarations]: Found specification of procedure fb_destroy_modedb [2021-11-21 01:39:05,437 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_destroy_modedb [2021-11-21 01:39:05,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-21 01:39:05,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-21 01:39:05,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-21 01:39:05,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-21 01:39:05,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-21 01:39:05,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-21 01:39:05,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-21 01:39:05,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-21 01:39:05,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-21 01:39:05,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-21 01:39:05,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:39:05,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-21 01:39:05,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-21 01:39:05,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 01:39:05,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 01:39:05,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-21 01:39:05,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-21 01:39:05,440 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-21 01:39:05,440 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-21 01:39:05,440 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2021-11-21 01:39:05,440 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2021-11-21 01:39:05,441 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2021-11-21 01:39:05,441 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2021-11-21 01:39:05,441 INFO L130 BoogieDeclarations]: Found specification of procedure expand_color [2021-11-21 01:39:05,441 INFO L138 BoogieDeclarations]: Found implementation of procedure expand_color [2021-11-21 01:39:05,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-21 01:39:05,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-21 01:39:05,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-21 01:39:05,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-21 01:39:05,442 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2021-11-21 01:39:05,442 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2021-11-21 01:39:05,442 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-21 01:39:05,442 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-21 01:39:05,443 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-21 01:39:05,443 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-21 01:39:05,443 INFO L130 BoogieDeclarations]: Found specification of procedure s3fb_check_var [2021-11-21 01:39:05,443 INFO L138 BoogieDeclarations]: Found implementation of procedure s3fb_check_var [2021-11-21 01:39:05,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:39:05,443 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-11-21 01:39:05,444 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-11-21 01:39:06,219 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:39:06,226 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:39:06,355 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 01:39:11,343 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:39:12,423 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:39:12,423 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-21 01:39:12,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:39:12 BoogieIcfgContainer [2021-11-21 01:39:12,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:39:12,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:39:12,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:39:12,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:39:12,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:38:59" (1/3) ... [2021-11-21 01:39:12,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53221887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:39:12, skipping insertion in model container [2021-11-21 01:39:12,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:04" (2/3) ... [2021-11-21 01:39:12,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53221887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:39:12, skipping insertion in model container [2021-11-21 01:39:12,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:39:12" (3/3) ... [2021-11-21 01:39:12,438 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--video--fbdev--s3fb.ko.cil.i [2021-11-21 01:39:12,443 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:39:12,444 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2021-11-21 01:39:12,501 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:39:12,516 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:39:12,516 INFO L340 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2021-11-21 01:39:12,582 INFO L276 IsEmpty]: Start isEmpty. Operand has 1072 states, 631 states have (on average 1.3201267828843106) internal successors, (833), 671 states have internal predecessors, (833), 338 states have call successors, (338), 77 states have call predecessors, (338), 76 states have return successors, (334), 332 states have call predecessors, (334), 334 states have call successors, (334) [2021-11-21 01:39:12,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-21 01:39:12,591 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:39:12,592 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:39:12,593 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:39:12,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:39:12,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1520896256, now seen corresponding path program 1 times [2021-11-21 01:39:12,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:39:12,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767226556] [2021-11-21 01:39:12,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:39:12,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:39:13,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:39:13,476 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:39:13,490 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:39:13,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767226556] [2021-11-21 01:39:13,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767226556] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:39:13,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:39:13,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:39:13,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907103511] [2021-11-21 01:39:13,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:39:13,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:39:13,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:39:13,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:39:13,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:39:13,560 INFO L87 Difference]: Start difference. First operand has 1072 states, 631 states have (on average 1.3201267828843106) internal successors, (833), 671 states have internal predecessors, (833), 338 states have call successors, (338), 77 states have call predecessors, (338), 76 states have return successors, (334), 332 states have call predecessors, (334), 334 states have call successors, (334) Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-21 01:39:16,191 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:39:21,059 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:39:21,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:39:21,222 INFO L93 Difference]: Finished difference Result 2919 states and 4196 transitions. [2021-11-21 01:39:21,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:39:21,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 [2021-11-21 01:39:21,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:39:21,268 INFO L225 Difference]: With dead ends: 2919 [2021-11-21 01:39:21,269 INFO L226 Difference]: Without dead ends: 1850 [2021-11-21 01:39:21,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:39:21,291 INFO L933 BasicCegarLoop]: 1503 mSDtfsCounter, 1071 mSDsluCounter, 3162 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 4243 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:39:21,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1076 Valid, 4243 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 653 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2021-11-21 01:39:21,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1850 states. [2021-11-21 01:39:21,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1850 to 1679. [2021-11-21 01:39:21,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1679 states, 1005 states have (on average 1.2885572139303483) internal successors, (1295), 1057 states have internal predecessors, (1295), 518 states have call successors, (518), 131 states have call predecessors, (518), 130 states have return successors, (519), 509 states have call predecessors, (519), 516 states have call successors, (519) [2021-11-21 01:39:21,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1679 states to 1679 states and 2332 transitions. [2021-11-21 01:39:21,506 INFO L78 Accepts]: Start accepts. Automaton has 1679 states and 2332 transitions. Word has length 51 [2021-11-21 01:39:21,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:39:21,506 INFO L470 AbstractCegarLoop]: Abstraction has 1679 states and 2332 transitions. [2021-11-21 01:39:21,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-21 01:39:21,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1679 states and 2332 transitions. [2021-11-21 01:39:21,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-21 01:39:21,510 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:39:21,511 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:39:21,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:39:21,511 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:39:21,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:39:21,512 INFO L85 PathProgramCache]: Analyzing trace with hash 463929095, now seen corresponding path program 1 times [2021-11-21 01:39:21,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:39:21,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229512571] [2021-11-21 01:39:21,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:39:21,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:39:21,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:39:21,792 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:39:21,792 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:39:21,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229512571] [2021-11-21 01:39:21,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229512571] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:39:21,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:39:21,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:39:21,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616821574] [2021-11-21 01:39:21,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:39:21,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:39:21,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:39:21,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:39:21,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:39:21,797 INFO L87 Difference]: Start difference. First operand 1679 states and 2332 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-21 01:39:24,220 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:39:29,181 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:39:29,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:39:29,401 INFO L93 Difference]: Finished difference Result 1747 states and 2400 transitions. [2021-11-21 01:39:29,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:39:29,401 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 [2021-11-21 01:39:29,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:39:29,418 INFO L225 Difference]: With dead ends: 1747 [2021-11-21 01:39:29,418 INFO L226 Difference]: Without dead ends: 1745 [2021-11-21 01:39:29,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:39:29,425 INFO L933 BasicCegarLoop]: 1270 mSDtfsCounter, 1065 mSDsluCounter, 1914 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 2924 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:39:29,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1070 Valid, 2924 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2021-11-21 01:39:29,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1745 states. [2021-11-21 01:39:29,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1745 to 1745. [2021-11-21 01:39:29,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1745 states, 1039 states have (on average 1.2810394610202118) internal successors, (1331), 1090 states have internal predecessors, (1331), 533 states have call successors, (533), 149 states have call predecessors, (533), 148 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2021-11-21 01:39:29,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1745 states to 1745 states and 2398 transitions. [2021-11-21 01:39:29,650 INFO L78 Accepts]: Start accepts. Automaton has 1745 states and 2398 transitions. Word has length 56 [2021-11-21 01:39:29,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:39:29,651 INFO L470 AbstractCegarLoop]: Abstraction has 1745 states and 2398 transitions. [2021-11-21 01:39:29,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-21 01:39:29,652 INFO L276 IsEmpty]: Start isEmpty. Operand 1745 states and 2398 transitions. [2021-11-21 01:39:29,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-21 01:39:29,663 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:39:29,663 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:39:29,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:39:29,665 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:39:29,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:39:29,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1676451573, now seen corresponding path program 1 times [2021-11-21 01:39:29,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:39:29,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691565016] [2021-11-21 01:39:29,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:39:29,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:39:29,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:39:29,995 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:39:29,996 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:39:29,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691565016] [2021-11-21 01:39:29,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691565016] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:39:29,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:39:29,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:39:29,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912839381] [2021-11-21 01:39:29,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:39:29,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:39:29,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:39:29,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:39:29,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:39:29,999 INFO L87 Difference]: Start difference. First operand 1745 states and 2398 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-21 01:39:32,397 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:39:37,015 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:39:37,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:39:37,225 INFO L93 Difference]: Finished difference Result 1745 states and 2398 transitions. [2021-11-21 01:39:37,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:39:37,226 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 [2021-11-21 01:39:37,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:39:37,241 INFO L225 Difference]: With dead ends: 1745 [2021-11-21 01:39:37,241 INFO L226 Difference]: Without dead ends: 1743 [2021-11-21 01:39:37,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:39:37,244 INFO L933 BasicCegarLoop]: 1268 mSDtfsCounter, 1062 mSDsluCounter, 1912 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1067 SdHoareTripleChecker+Valid, 2920 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:39:37,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1067 Valid, 2920 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2021-11-21 01:39:37,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2021-11-21 01:39:37,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 1743. [2021-11-21 01:39:37,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1743 states, 1038 states have (on average 1.2803468208092486) internal successors, (1329), 1088 states have internal predecessors, (1329), 533 states have call successors, (533), 149 states have call predecessors, (533), 148 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2021-11-21 01:39:37,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1743 states to 1743 states and 2396 transitions. [2021-11-21 01:39:37,353 INFO L78 Accepts]: Start accepts. Automaton has 1743 states and 2396 transitions. Word has length 61 [2021-11-21 01:39:37,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:39:37,354 INFO L470 AbstractCegarLoop]: Abstraction has 1743 states and 2396 transitions. [2021-11-21 01:39:37,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-21 01:39:37,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1743 states and 2396 transitions. [2021-11-21 01:39:37,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-21 01:39:37,359 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:39:37,359 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:39:37,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 01:39:37,360 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:39:37,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:39:37,360 INFO L85 PathProgramCache]: Analyzing trace with hash -339279032, now seen corresponding path program 1 times [2021-11-21 01:39:37,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:39:37,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399051332] [2021-11-21 01:39:37,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:39:37,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:39:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:39:37,651 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:39:37,651 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:39:37,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399051332] [2021-11-21 01:39:37,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399051332] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:39:37,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:39:37,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:39:37,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808789374] [2021-11-21 01:39:37,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:39:37,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:39:37,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:39:37,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:39:37,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:39:37,654 INFO L87 Difference]: Start difference. First operand 1743 states and 2396 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-21 01:39:40,134 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:39:44,757 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:39:44,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:39:44,958 INFO L93 Difference]: Finished difference Result 1743 states and 2396 transitions. [2021-11-21 01:39:44,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:39:44,959 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 [2021-11-21 01:39:44,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:39:44,976 INFO L225 Difference]: With dead ends: 1743 [2021-11-21 01:39:44,976 INFO L226 Difference]: Without dead ends: 1741 [2021-11-21 01:39:44,978 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:39:44,980 INFO L933 BasicCegarLoop]: 1266 mSDtfsCounter, 1059 mSDsluCounter, 1910 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1064 SdHoareTripleChecker+Valid, 2916 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:39:44,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1064 Valid, 2916 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2021-11-21 01:39:44,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1741 states. [2021-11-21 01:39:45,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1741 to 1741. [2021-11-21 01:39:45,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1741 states, 1037 states have (on average 1.279652844744455) internal successors, (1327), 1086 states have internal predecessors, (1327), 533 states have call successors, (533), 149 states have call predecessors, (533), 148 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2021-11-21 01:39:45,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1741 states to 1741 states and 2394 transitions. [2021-11-21 01:39:45,101 INFO L78 Accepts]: Start accepts. Automaton has 1741 states and 2394 transitions. Word has length 66 [2021-11-21 01:39:45,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:39:45,101 INFO L470 AbstractCegarLoop]: Abstraction has 1741 states and 2394 transitions. [2021-11-21 01:39:45,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-21 01:39:45,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1741 states and 2394 transitions. [2021-11-21 01:39:45,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-21 01:39:45,104 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:39:45,105 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:39:45,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 01:39:45,105 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:39:45,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:39:45,106 INFO L85 PathProgramCache]: Analyzing trace with hash 613058560, now seen corresponding path program 1 times [2021-11-21 01:39:45,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:39:45,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764900076] [2021-11-21 01:39:45,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:39:45,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:39:45,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:39:45,366 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:39:45,366 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:39:45,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764900076] [2021-11-21 01:39:45,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764900076] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:39:45,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:39:45,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:39:45,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267950439] [2021-11-21 01:39:45,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:39:45,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:39:45,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:39:45,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:39:45,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:39:45,370 INFO L87 Difference]: Start difference. First operand 1741 states and 2394 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-21 01:39:47,779 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:39:49,043 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:39:53,047 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:39:53,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:39:53,246 INFO L93 Difference]: Finished difference Result 1741 states and 2394 transitions. [2021-11-21 01:39:53,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:39:53,246 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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 [2021-11-21 01:39:53,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:39:53,263 INFO L225 Difference]: With dead ends: 1741 [2021-11-21 01:39:53,264 INFO L226 Difference]: Without dead ends: 1739 [2021-11-21 01:39:53,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:39:53,267 INFO L933 BasicCegarLoop]: 1264 mSDtfsCounter, 1056 mSDsluCounter, 1908 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 2912 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:39:53,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1061 Valid, 2912 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2021-11-21 01:39:53,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2021-11-21 01:39:53,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1739. [2021-11-21 01:39:53,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1739 states, 1036 states have (on average 1.278957528957529) internal successors, (1325), 1084 states have internal predecessors, (1325), 533 states have call successors, (533), 149 states have call predecessors, (533), 148 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2021-11-21 01:39:53,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1739 states to 1739 states and 2392 transitions. [2021-11-21 01:39:53,387 INFO L78 Accepts]: Start accepts. Automaton has 1739 states and 2392 transitions. Word has length 71 [2021-11-21 01:39:53,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:39:53,387 INFO L470 AbstractCegarLoop]: Abstraction has 1739 states and 2392 transitions. [2021-11-21 01:39:53,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-21 01:39:53,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1739 states and 2392 transitions. [2021-11-21 01:39:53,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-21 01:39:53,389 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:39:53,390 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:39:53,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 01:39:53,391 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:39:53,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:39:53,392 INFO L85 PathProgramCache]: Analyzing trace with hash -318737317, now seen corresponding path program 1 times [2021-11-21 01:39:53,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:39:53,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822078155] [2021-11-21 01:39:53,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:39:53,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:39:53,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:39:53,689 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-21 01:39:53,689 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:39:53,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822078155] [2021-11-21 01:39:53,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822078155] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:39:53,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:39:53,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:39:53,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866113900] [2021-11-21 01:39:53,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:39:53,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:39:53,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:39:53,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:39:53,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:39:53,692 INFO L87 Difference]: Start difference. First operand 1739 states and 2392 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-21 01:39:55,994 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:39:59,728 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:39:59,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:39:59,925 INFO L93 Difference]: Finished difference Result 3452 states and 4746 transitions. [2021-11-21 01:39:59,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:39:59,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 89 [2021-11-21 01:39:59,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:39:59,944 INFO L225 Difference]: With dead ends: 3452 [2021-11-21 01:39:59,944 INFO L226 Difference]: Without dead ends: 1733 [2021-11-21 01:39:59,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:39:59,956 INFO L933 BasicCegarLoop]: 1260 mSDtfsCounter, 1070 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1073 SdHoareTripleChecker+Valid, 1644 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:39:59,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1073 Valid, 1644 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 262 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2021-11-21 01:39:59,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1733 states. [2021-11-21 01:40:00,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1733 to 1733. [2021-11-21 01:40:00,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1733 states, 1031 states have (on average 1.2764306498545102) internal successors, (1316), 1078 states have internal predecessors, (1316), 533 states have call successors, (533), 149 states have call predecessors, (533), 148 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2021-11-21 01:40:00,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1733 states to 1733 states and 2383 transitions. [2021-11-21 01:40:00,084 INFO L78 Accepts]: Start accepts. Automaton has 1733 states and 2383 transitions. Word has length 89 [2021-11-21 01:40:00,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:40:00,084 INFO L470 AbstractCegarLoop]: Abstraction has 1733 states and 2383 transitions. [2021-11-21 01:40:00,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-21 01:40:00,085 INFO L276 IsEmpty]: Start isEmpty. Operand 1733 states and 2383 transitions. [2021-11-21 01:40:00,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-21 01:40:00,086 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:40:00,086 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:40:00,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 01:40:00,087 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:40:00,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:40:00,087 INFO L85 PathProgramCache]: Analyzing trace with hash -2073116818, now seen corresponding path program 1 times [2021-11-21 01:40:00,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:40:00,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423506347] [2021-11-21 01:40:00,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:40:00,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:40:00,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:40:00,298 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:40:00,299 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:40:00,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423506347] [2021-11-21 01:40:00,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423506347] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:40:00,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:40:00,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:40:00,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259420779] [2021-11-21 01:40:00,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:40:00,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:40:00,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:40:00,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:40:00,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:40:00,304 INFO L87 Difference]: Start difference. First operand 1733 states and 2383 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-21 01:40:02,704 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:40:07,161 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:40:09,298 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:40:09,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:40:09,513 INFO L93 Difference]: Finished difference Result 1733 states and 2383 transitions. [2021-11-21 01:40:09,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:40:09,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 [2021-11-21 01:40:09,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:40:09,528 INFO L225 Difference]: With dead ends: 1733 [2021-11-21 01:40:09,528 INFO L226 Difference]: Without dead ends: 1731 [2021-11-21 01:40:09,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:40:09,531 INFO L933 BasicCegarLoop]: 1257 mSDtfsCounter, 1048 mSDsluCounter, 1899 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 2898 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:40:09,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1053 Valid, 2898 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 470 Invalid, 3 Unknown, 0 Unchecked, 9.1s Time] [2021-11-21 01:40:09,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2021-11-21 01:40:09,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 1731. [2021-11-21 01:40:09,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1731 states, 1030 states have (on average 1.2757281553398059) internal successors, (1314), 1076 states have internal predecessors, (1314), 533 states have call successors, (533), 149 states have call predecessors, (533), 148 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2021-11-21 01:40:09,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 2381 transitions. [2021-11-21 01:40:09,678 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 2381 transitions. Word has length 76 [2021-11-21 01:40:09,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:40:09,680 INFO L470 AbstractCegarLoop]: Abstraction has 1731 states and 2381 transitions. [2021-11-21 01:40:09,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-21 01:40:09,680 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 2381 transitions. [2021-11-21 01:40:09,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-21 01:40:09,682 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:40:09,682 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:40:09,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 01:40:09,683 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:40:09,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:40:09,684 INFO L85 PathProgramCache]: Analyzing trace with hash 970825120, now seen corresponding path program 1 times [2021-11-21 01:40:09,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:40:09,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366272698] [2021-11-21 01:40:09,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:40:09,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:40:09,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:40:09,959 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-11-21 01:40:09,959 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:40:09,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366272698] [2021-11-21 01:40:09,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366272698] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:40:09,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662706666] [2021-11-21 01:40:09,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:40:09,960 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:40:09,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:40:09,966 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:40:09,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:40:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:40:10,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 3095 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 01:40:10,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:40:11,121 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-11-21 01:40:11,121 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:40:11,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662706666] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:40:11,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 01:40:11,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-11-21 01:40:11,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605989812] [2021-11-21 01:40:11,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:40:11,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:40:11,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:40:11,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:40:11,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-21 01:40:11,123 INFO L87 Difference]: Start difference. First operand 1731 states and 2381 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-21 01:40:13,443 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:40:16,984 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:40:17,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:40:17,184 INFO L93 Difference]: Finished difference Result 3436 states and 4724 transitions. [2021-11-21 01:40:17,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:40:17,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 94 [2021-11-21 01:40:17,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:40:17,198 INFO L225 Difference]: With dead ends: 3436 [2021-11-21 01:40:17,199 INFO L226 Difference]: Without dead ends: 1725 [2021-11-21 01:40:17,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-21 01:40:17,210 INFO L933 BasicCegarLoop]: 1253 mSDtfsCounter, 1059 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1062 SdHoareTripleChecker+Valid, 1637 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:40:17,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1062 Valid, 1637 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 262 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2021-11-21 01:40:17,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2021-11-21 01:40:17,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1725. [2021-11-21 01:40:17,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1725 states, 1025 states have (on average 1.273170731707317) internal successors, (1305), 1070 states have internal predecessors, (1305), 533 states have call successors, (533), 149 states have call predecessors, (533), 148 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2021-11-21 01:40:17,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 2372 transitions. [2021-11-21 01:40:17,328 INFO L78 Accepts]: Start accepts. Automaton has 1725 states and 2372 transitions. Word has length 94 [2021-11-21 01:40:17,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:40:17,328 INFO L470 AbstractCegarLoop]: Abstraction has 1725 states and 2372 transitions. [2021-11-21 01:40:17,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-21 01:40:17,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 2372 transitions. [2021-11-21 01:40:17,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-21 01:40:17,334 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:40:17,334 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:40:17,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:40:17,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:40:17,562 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:40:17,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:40:17,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1470807696, now seen corresponding path program 1 times [2021-11-21 01:40:17,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:40:17,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383515487] [2021-11-21 01:40:17,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:40:17,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:40:17,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:40:17,798 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:40:17,798 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:40:17,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383515487] [2021-11-21 01:40:17,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383515487] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:40:17,799 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:40:17,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:40:17,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777115575] [2021-11-21 01:40:17,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:40:17,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:40:17,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:40:17,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:40:17,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:40:17,801 INFO L87 Difference]: Start difference. First operand 1725 states and 2372 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 01:40:20,313 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:40:25,111 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:40:25,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:40:25,305 INFO L93 Difference]: Finished difference Result 1725 states and 2372 transitions. [2021-11-21 01:40:25,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:40:25,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 [2021-11-21 01:40:25,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:40:25,319 INFO L225 Difference]: With dead ends: 1725 [2021-11-21 01:40:25,319 INFO L226 Difference]: Without dead ends: 1723 [2021-11-21 01:40:25,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:40:25,321 INFO L933 BasicCegarLoop]: 1250 mSDtfsCounter, 1040 mSDsluCounter, 1894 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 2884 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:40:25,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1045 Valid, 2884 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2021-11-21 01:40:25,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2021-11-21 01:40:25,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1723. [2021-11-21 01:40:25,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 1024 states have (on average 1.2724609375) internal successors, (1303), 1068 states have internal predecessors, (1303), 533 states have call successors, (533), 149 states have call predecessors, (533), 148 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2021-11-21 01:40:25,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2370 transitions. [2021-11-21 01:40:25,437 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2370 transitions. Word has length 81 [2021-11-21 01:40:25,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:40:25,437 INFO L470 AbstractCegarLoop]: Abstraction has 1723 states and 2370 transitions. [2021-11-21 01:40:25,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 01:40:25,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2370 transitions. [2021-11-21 01:40:25,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-21 01:40:25,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:40:25,441 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:40:25,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-21 01:40:25,441 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:40:25,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:40:25,442 INFO L85 PathProgramCache]: Analyzing trace with hash 332803110, now seen corresponding path program 1 times [2021-11-21 01:40:25,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:40:25,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897677753] [2021-11-21 01:40:25,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:40:25,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:40:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:40:25,647 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:40:25,647 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:40:25,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897677753] [2021-11-21 01:40:25,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897677753] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:40:25,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:40:25,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:40:25,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060749273] [2021-11-21 01:40:25,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:40:25,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:40:25,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:40:25,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:40:25,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:40:25,650 INFO L87 Difference]: Start difference. First operand 1723 states and 2370 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-21 01:40:28,106 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:40:32,765 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:40:32,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:40:32,955 INFO L93 Difference]: Finished difference Result 1723 states and 2370 transitions. [2021-11-21 01:40:32,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:40:32,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (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 [2021-11-21 01:40:32,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:40:32,966 INFO L225 Difference]: With dead ends: 1723 [2021-11-21 01:40:32,966 INFO L226 Difference]: Without dead ends: 1721 [2021-11-21 01:40:32,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:40:32,968 INFO L933 BasicCegarLoop]: 1248 mSDtfsCounter, 1041 mSDsluCounter, 1888 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1046 SdHoareTripleChecker+Valid, 2876 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:40:32,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1046 Valid, 2876 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2021-11-21 01:40:32,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1721 states. [2021-11-21 01:40:33,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1721 to 1721. [2021-11-21 01:40:33,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1721 states, 1023 states have (on average 1.2717497556207233) internal successors, (1301), 1066 states have internal predecessors, (1301), 533 states have call successors, (533), 149 states have call predecessors, (533), 148 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2021-11-21 01:40:33,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1721 states to 1721 states and 2368 transitions. [2021-11-21 01:40:33,083 INFO L78 Accepts]: Start accepts. Automaton has 1721 states and 2368 transitions. Word has length 86 [2021-11-21 01:40:33,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:40:33,084 INFO L470 AbstractCegarLoop]: Abstraction has 1721 states and 2368 transitions. [2021-11-21 01:40:33,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-21 01:40:33,085 INFO L276 IsEmpty]: Start isEmpty. Operand 1721 states and 2368 transitions. [2021-11-21 01:40:33,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-21 01:40:33,086 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:40:33,086 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:40:33,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-21 01:40:33,087 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:40:33,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:40:33,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1996340265, now seen corresponding path program 1 times [2021-11-21 01:40:33,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:40:33,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425418415] [2021-11-21 01:40:33,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:40:33,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:40:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:40:33,318 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:40:33,318 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:40:33,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425418415] [2021-11-21 01:40:33,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425418415] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:40:33,319 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:40:33,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:40:33,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265347561] [2021-11-21 01:40:33,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:40:33,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:40:33,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:40:33,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:40:33,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:40:33,322 INFO L87 Difference]: Start difference. First operand 1721 states and 2368 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-21 01:40:35,788 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:40:40,413 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:40:40,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:40:40,576 INFO L93 Difference]: Finished difference Result 1721 states and 2368 transitions. [2021-11-21 01:40:40,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:40:40,577 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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 [2021-11-21 01:40:40,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:40:40,589 INFO L225 Difference]: With dead ends: 1721 [2021-11-21 01:40:40,589 INFO L226 Difference]: Without dead ends: 1719 [2021-11-21 01:40:40,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:40:40,592 INFO L933 BasicCegarLoop]: 1246 mSDtfsCounter, 1033 mSDsluCounter, 1890 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 2876 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:40:40,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1038 Valid, 2876 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2021-11-21 01:40:40,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1719 states. [2021-11-21 01:40:40,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1719 to 1719. [2021-11-21 01:40:40,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1719 states, 1022 states have (on average 1.2710371819960862) internal successors, (1299), 1064 states have internal predecessors, (1299), 533 states have call successors, (533), 149 states have call predecessors, (533), 148 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2021-11-21 01:40:40,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1719 states to 1719 states and 2366 transitions. [2021-11-21 01:40:40,726 INFO L78 Accepts]: Start accepts. Automaton has 1719 states and 2366 transitions. Word has length 88 [2021-11-21 01:40:40,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:40:40,727 INFO L470 AbstractCegarLoop]: Abstraction has 1719 states and 2366 transitions. [2021-11-21 01:40:40,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-21 01:40:40,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1719 states and 2366 transitions. [2021-11-21 01:40:40,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-21 01:40:40,729 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:40:40,729 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:40:40,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-21 01:40:40,730 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:40:40,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:40:40,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1168742735, now seen corresponding path program 1 times [2021-11-21 01:40:40,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:40:40,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759942959] [2021-11-21 01:40:40,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:40:40,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:40:40,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:40:40,934 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:40:40,934 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:40:40,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759942959] [2021-11-21 01:40:40,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759942959] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:40:40,935 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:40:40,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:40:40,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878790841] [2021-11-21 01:40:40,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:40:40,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:40:40,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:40:40,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:40:40,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:40:40,937 INFO L87 Difference]: Start difference. First operand 1719 states and 2366 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-21 01:40:43,402 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:40:44,635 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:40:48,778 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:40:48,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:40:48,982 INFO L93 Difference]: Finished difference Result 1719 states and 2366 transitions. [2021-11-21 01:40:48,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:40:48,982 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 [2021-11-21 01:40:48,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:40:48,995 INFO L225 Difference]: With dead ends: 1719 [2021-11-21 01:40:48,996 INFO L226 Difference]: Without dead ends: 1717 [2021-11-21 01:40:48,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:40:48,998 INFO L933 BasicCegarLoop]: 1244 mSDtfsCounter, 1032 mSDsluCounter, 1888 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 2872 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:40:48,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1037 Valid, 2872 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2021-11-21 01:40:49,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1717 states. [2021-11-21 01:40:49,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1717 to 1717. [2021-11-21 01:40:49,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1717 states, 1021 states have (on average 1.2703232125367288) internal successors, (1297), 1062 states have internal predecessors, (1297), 533 states have call successors, (533), 149 states have call predecessors, (533), 148 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2021-11-21 01:40:49,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 2364 transitions. [2021-11-21 01:40:49,129 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 2364 transitions. Word has length 93 [2021-11-21 01:40:49,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:40:49,129 INFO L470 AbstractCegarLoop]: Abstraction has 1717 states and 2364 transitions. [2021-11-21 01:40:49,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-21 01:40:49,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 2364 transitions. [2021-11-21 01:40:49,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-21 01:40:49,132 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:40:49,132 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:40:49,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-21 01:40:49,133 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:40:49,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:40:49,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1764434580, now seen corresponding path program 1 times [2021-11-21 01:40:49,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:40:49,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007159184] [2021-11-21 01:40:49,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:40:49,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:40:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:40:49,363 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:40:49,364 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:40:49,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007159184] [2021-11-21 01:40:49,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007159184] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:40:49,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:40:49,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:40:49,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124979666] [2021-11-21 01:40:49,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:40:49,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:40:49,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:40:49,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:40:49,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:40:49,367 INFO L87 Difference]: Start difference. First operand 1717 states and 2364 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-21 01:40:51,830 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:40:56,628 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:40:56,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:40:56,822 INFO L93 Difference]: Finished difference Result 1717 states and 2364 transitions. [2021-11-21 01:40:56,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:40:56,823 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), 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 [2021-11-21 01:40:56,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:40:56,832 INFO L225 Difference]: With dead ends: 1717 [2021-11-21 01:40:56,832 INFO L226 Difference]: Without dead ends: 1715 [2021-11-21 01:40:56,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:40:56,834 INFO L933 BasicCegarLoop]: 1242 mSDtfsCounter, 1029 mSDsluCounter, 1886 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1034 SdHoareTripleChecker+Valid, 2868 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:40:56,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1034 Valid, 2868 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2021-11-21 01:40:56,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2021-11-21 01:40:56,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1715. [2021-11-21 01:40:56,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1020 states have (on average 1.2696078431372548) internal successors, (1295), 1060 states have internal predecessors, (1295), 533 states have call successors, (533), 149 states have call predecessors, (533), 148 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2021-11-21 01:40:56,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2362 transitions. [2021-11-21 01:40:56,964 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2362 transitions. Word has length 98 [2021-11-21 01:40:56,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:40:56,964 INFO L470 AbstractCegarLoop]: Abstraction has 1715 states and 2362 transitions. [2021-11-21 01:40:56,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-21 01:40:56,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2362 transitions. [2021-11-21 01:40:56,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-21 01:40:56,967 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:40:56,967 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:40:56,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-21 01:40:56,967 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:40:56,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:40:56,968 INFO L85 PathProgramCache]: Analyzing trace with hash 457060970, now seen corresponding path program 1 times [2021-11-21 01:40:56,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:40:56,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558856893] [2021-11-21 01:40:56,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:40:56,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:40:57,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:40:57,147 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:40:57,148 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:40:57,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558856893] [2021-11-21 01:40:57,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558856893] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:40:57,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:40:57,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:40:57,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133132988] [2021-11-21 01:40:57,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:40:57,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:40:57,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:40:57,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:40:57,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:40:57,151 INFO L87 Difference]: Start difference. First operand 1715 states and 2362 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-21 01:40:59,583 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:41:01,644 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:05,347 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:41:05,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:41:05,540 INFO L93 Difference]: Finished difference Result 1715 states and 2362 transitions. [2021-11-21 01:41:05,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:41:05,540 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 [2021-11-21 01:41:05,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:41:05,550 INFO L225 Difference]: With dead ends: 1715 [2021-11-21 01:41:05,550 INFO L226 Difference]: Without dead ends: 1713 [2021-11-21 01:41:05,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:41:05,552 INFO L933 BasicCegarLoop]: 1240 mSDtfsCounter, 1026 mSDsluCounter, 1884 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 2864 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:41:05,552 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1031 Valid, 2864 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2021-11-21 01:41:05,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1713 states. [2021-11-21 01:41:05,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1713 to 1713. [2021-11-21 01:41:05,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1713 states, 1019 states have (on average 1.268891069676153) internal successors, (1293), 1058 states have internal predecessors, (1293), 533 states have call successors, (533), 149 states have call predecessors, (533), 148 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2021-11-21 01:41:05,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 2360 transitions. [2021-11-21 01:41:05,720 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 2360 transitions. Word has length 103 [2021-11-21 01:41:05,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:41:05,721 INFO L470 AbstractCegarLoop]: Abstraction has 1713 states and 2360 transitions. [2021-11-21 01:41:05,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-21 01:41:05,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 2360 transitions. [2021-11-21 01:41:05,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-21 01:41:05,724 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:05,724 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:41:05,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-21 01:41:05,725 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:41:05,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:05,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1318064986, now seen corresponding path program 1 times [2021-11-21 01:41:05,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:05,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630424875] [2021-11-21 01:41:05,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:05,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:05,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:05,931 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:41:05,931 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:05,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630424875] [2021-11-21 01:41:05,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630424875] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:05,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:41:05,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:41:05,935 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032192595] [2021-11-21 01:41:05,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:05,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:41:05,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:05,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:41:05,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:41:05,937 INFO L87 Difference]: Start difference. First operand 1713 states and 2360 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-21 01:41:08,416 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:41:12,799 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:41:12,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:41:12,964 INFO L93 Difference]: Finished difference Result 1713 states and 2360 transitions. [2021-11-21 01:41:12,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:41:12,965 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 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 [2021-11-21 01:41:12,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:41:12,980 INFO L225 Difference]: With dead ends: 1713 [2021-11-21 01:41:12,980 INFO L226 Difference]: Without dead ends: 1711 [2021-11-21 01:41:12,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:41:12,982 INFO L933 BasicCegarLoop]: 1238 mSDtfsCounter, 1023 mSDsluCounter, 1882 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1028 SdHoareTripleChecker+Valid, 2860 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:41:12,983 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1028 Valid, 2860 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2021-11-21 01:41:12,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1711 states. [2021-11-21 01:41:13,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1711 to 1711. [2021-11-21 01:41:13,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1711 states, 1018 states have (on average 1.268172888015717) internal successors, (1291), 1056 states have internal predecessors, (1291), 533 states have call successors, (533), 149 states have call predecessors, (533), 148 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2021-11-21 01:41:13,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1711 states to 1711 states and 2358 transitions. [2021-11-21 01:41:13,130 INFO L78 Accepts]: Start accepts. Automaton has 1711 states and 2358 transitions. Word has length 108 [2021-11-21 01:41:13,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:41:13,130 INFO L470 AbstractCegarLoop]: Abstraction has 1711 states and 2358 transitions. [2021-11-21 01:41:13,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-21 01:41:13,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1711 states and 2358 transitions. [2021-11-21 01:41:13,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-21 01:41:13,133 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:13,134 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:41:13,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-21 01:41:13,134 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:41:13,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:13,135 INFO L85 PathProgramCache]: Analyzing trace with hash -988878025, now seen corresponding path program 1 times [2021-11-21 01:41:13,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:13,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567738969] [2021-11-21 01:41:13,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:13,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:13,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:13,363 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:41:13,363 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:13,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567738969] [2021-11-21 01:41:13,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567738969] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:13,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:41:13,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:41:13,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973892487] [2021-11-21 01:41:13,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:13,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:41:13,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:13,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:41:13,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:41:13,367 INFO L87 Difference]: Start difference. First operand 1711 states and 2358 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-21 01:41:15,762 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:41:17,462 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:20,942 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:41:21,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:41:21,148 INFO L93 Difference]: Finished difference Result 1711 states and 2358 transitions. [2021-11-21 01:41:21,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:41:21,149 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 [2021-11-21 01:41:21,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:41:21,161 INFO L225 Difference]: With dead ends: 1711 [2021-11-21 01:41:21,161 INFO L226 Difference]: Without dead ends: 1709 [2021-11-21 01:41:21,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:41:21,163 INFO L933 BasicCegarLoop]: 1236 mSDtfsCounter, 1020 mSDsluCounter, 1880 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 2856 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:41:21,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1025 Valid, 2856 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2021-11-21 01:41:21,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1709 states. [2021-11-21 01:41:21,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1709 to 1709. [2021-11-21 01:41:21,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1709 states, 1017 states have (on average 1.2674532940019665) internal successors, (1289), 1054 states have internal predecessors, (1289), 533 states have call successors, (533), 149 states have call predecessors, (533), 148 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2021-11-21 01:41:21,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1709 states to 1709 states and 2356 transitions. [2021-11-21 01:41:21,316 INFO L78 Accepts]: Start accepts. Automaton has 1709 states and 2356 transitions. Word has length 113 [2021-11-21 01:41:21,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:41:21,317 INFO L470 AbstractCegarLoop]: Abstraction has 1709 states and 2356 transitions. [2021-11-21 01:41:21,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-21 01:41:21,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1709 states and 2356 transitions. [2021-11-21 01:41:21,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-11-21 01:41:21,321 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:21,321 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:41:21,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-21 01:41:21,321 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:41:21,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:21,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1255375562, now seen corresponding path program 1 times [2021-11-21 01:41:21,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:21,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250490966] [2021-11-21 01:41:21,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:21,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:21,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:21,656 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2021-11-21 01:41:21,657 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:21,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250490966] [2021-11-21 01:41:21,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250490966] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:21,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:41:21,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:41:21,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232136225] [2021-11-21 01:41:21,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:21,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:41:21,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:21,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:41:21,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:41:21,660 INFO L87 Difference]: Start difference. First operand 1709 states and 2356 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-21 01:41:24,278 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:41:30,573 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:41:30,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:41:30,791 INFO L93 Difference]: Finished difference Result 1714 states and 2359 transitions. [2021-11-21 01:41:30,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:41:30,791 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 134 [2021-11-21 01:41:30,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:41:30,811 INFO L225 Difference]: With dead ends: 1714 [2021-11-21 01:41:30,818 INFO L226 Difference]: Without dead ends: 1712 [2021-11-21 01:41:30,820 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-21 01:41:30,821 INFO L933 BasicCegarLoop]: 1233 mSDtfsCounter, 947 mSDsluCounter, 3378 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 4130 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:41:30,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [950 Valid, 4130 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 698 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2021-11-21 01:41:30,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2021-11-21 01:41:31,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1711. [2021-11-21 01:41:31,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1711 states, 1018 states have (on average 1.2652259332023577) internal successors, (1288), 1054 states have internal predecessors, (1288), 533 states have call successors, (533), 151 states have call predecessors, (533), 150 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2021-11-21 01:41:31,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1711 states to 1711 states and 2355 transitions. [2021-11-21 01:41:31,046 INFO L78 Accepts]: Start accepts. Automaton has 1711 states and 2355 transitions. Word has length 134 [2021-11-21 01:41:31,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:41:31,047 INFO L470 AbstractCegarLoop]: Abstraction has 1711 states and 2355 transitions. [2021-11-21 01:41:31,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-21 01:41:31,047 INFO L276 IsEmpty]: Start isEmpty. Operand 1711 states and 2355 transitions. [2021-11-21 01:41:31,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-21 01:41:31,050 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:31,050 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:41:31,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-21 01:41:31,050 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:41:31,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:31,052 INFO L85 PathProgramCache]: Analyzing trace with hash 863096383, now seen corresponding path program 1 times [2021-11-21 01:41:31,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:31,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023260978] [2021-11-21 01:41:31,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:31,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:31,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:31,300 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:41:31,300 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:31,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023260978] [2021-11-21 01:41:31,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023260978] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:31,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:41:31,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:41:31,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463065253] [2021-11-21 01:41:31,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:31,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:41:31,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:31,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:41:31,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:41:31,305 INFO L87 Difference]: Start difference. First operand 1711 states and 2355 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-21 01:41:33,707 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:41:35,228 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:38,880 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:41:39,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:41:39,082 INFO L93 Difference]: Finished difference Result 1711 states and 2355 transitions. [2021-11-21 01:41:39,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:41:39,082 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 [2021-11-21 01:41:39,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:41:39,093 INFO L225 Difference]: With dead ends: 1711 [2021-11-21 01:41:39,094 INFO L226 Difference]: Without dead ends: 1709 [2021-11-21 01:41:39,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:41:39,096 INFO L933 BasicCegarLoop]: 1232 mSDtfsCounter, 1015 mSDsluCounter, 1876 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1020 SdHoareTripleChecker+Valid, 2848 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:41:39,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1020 Valid, 2848 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2021-11-21 01:41:39,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1709 states. [2021-11-21 01:41:39,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1709 to 1709. [2021-11-21 01:41:39,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1709 states, 1017 states have (on average 1.264503441494592) internal successors, (1286), 1052 states have internal predecessors, (1286), 533 states have call successors, (533), 151 states have call predecessors, (533), 150 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2021-11-21 01:41:39,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1709 states to 1709 states and 2353 transitions. [2021-11-21 01:41:39,248 INFO L78 Accepts]: Start accepts. Automaton has 1709 states and 2353 transitions. Word has length 118 [2021-11-21 01:41:39,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:41:39,248 INFO L470 AbstractCegarLoop]: Abstraction has 1709 states and 2353 transitions. [2021-11-21 01:41:39,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-21 01:41:39,249 INFO L276 IsEmpty]: Start isEmpty. Operand 1709 states and 2353 transitions. [2021-11-21 01:41:39,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-21 01:41:39,251 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:39,251 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:41:39,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-21 01:41:39,252 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:41:39,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:39,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1742677379, now seen corresponding path program 1 times [2021-11-21 01:41:39,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:39,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932886490] [2021-11-21 01:41:39,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:39,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:39,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:39,449 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:41:39,450 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:39,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932886490] [2021-11-21 01:41:39,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932886490] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:39,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:41:39,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:41:39,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995641052] [2021-11-21 01:41:39,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:39,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:41:39,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:39,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:41:39,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:41:39,453 INFO L87 Difference]: Start difference. First operand 1709 states and 2353 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-21 01:41:41,979 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:41:46,873 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:41:47,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:41:47,083 INFO L93 Difference]: Finished difference Result 1709 states and 2353 transitions. [2021-11-21 01:41:47,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:41:47,084 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 [2021-11-21 01:41:47,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:41:47,092 INFO L225 Difference]: With dead ends: 1709 [2021-11-21 01:41:47,092 INFO L226 Difference]: Without dead ends: 1707 [2021-11-21 01:41:47,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:41:47,094 INFO L933 BasicCegarLoop]: 1230 mSDtfsCounter, 1012 mSDsluCounter, 1874 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1017 SdHoareTripleChecker+Valid, 2844 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:41:47,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1017 Valid, 2844 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2021-11-21 01:41:47,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2021-11-21 01:41:47,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1707. [2021-11-21 01:41:47,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1707 states, 1016 states have (on average 1.263779527559055) internal successors, (1284), 1050 states have internal predecessors, (1284), 533 states have call successors, (533), 151 states have call predecessors, (533), 150 states have return successors, (534), 524 states have call predecessors, (534), 531 states have call successors, (534) [2021-11-21 01:41:47,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 2351 transitions. [2021-11-21 01:41:47,225 INFO L78 Accepts]: Start accepts. Automaton has 1707 states and 2351 transitions. Word has length 123 [2021-11-21 01:41:47,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:41:47,225 INFO L470 AbstractCegarLoop]: Abstraction has 1707 states and 2351 transitions. [2021-11-21 01:41:47,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-21 01:41:47,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1707 states and 2351 transitions. [2021-11-21 01:41:47,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-21 01:41:47,228 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:47,229 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:41:47,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-21 01:41:47,229 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:41:47,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:47,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1662440428, now seen corresponding path program 1 times [2021-11-21 01:41:47,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:47,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808738226] [2021-11-21 01:41:47,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:47,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:47,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:48,065 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 4 proven. 26 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-21 01:41:48,065 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:48,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808738226] [2021-11-21 01:41:48,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808738226] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:41:48,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57942147] [2021-11-21 01:41:48,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:48,066 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:41:48,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:41:48,071 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:41:48,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:41:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:49,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 3370 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-21 01:41:49,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:41:49,814 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2021-11-21 01:41:49,815 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:41:49,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57942147] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:49,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 01:41:49,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [9] total 16 [2021-11-21 01:41:49,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569344673] [2021-11-21 01:41:49,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:49,816 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-21 01:41:49,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:49,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-21 01:41:49,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2021-11-21 01:41:49,817 INFO L87 Difference]: Start difference. First operand 1707 states and 2351 transitions. Second operand has 11 states, 8 states have (on average 6.875) internal successors, (55), 10 states have internal predecessors, (55), 6 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2021-11-21 01:41:53,977 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:42:05,433 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:06,539 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:14,664 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:42:14,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:14,961 INFO L93 Difference]: Finished difference Result 4128 states and 5860 transitions. [2021-11-21 01:42:14,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-21 01:42:14,962 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 6.875) internal successors, (55), 10 states have internal predecessors, (55), 6 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) Word has length 141 [2021-11-21 01:42:14,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:14,977 INFO L225 Difference]: With dead ends: 4128 [2021-11-21 01:42:14,978 INFO L226 Difference]: Without dead ends: 2439 [2021-11-21 01:42:14,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=396, Unknown=0, NotChecked=0, Total=462 [2021-11-21 01:42:14,991 INFO L933 BasicCegarLoop]: 1697 mSDtfsCounter, 953 mSDsluCounter, 16492 mSDsCounter, 0 mSdLazyCounter, 3056 mSolverCounterSat, 512 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 15790 SdHoareTripleChecker+Invalid, 3570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 3056 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:14,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [955 Valid, 15790 Invalid, 3570 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [512 Valid, 3056 Invalid, 2 Unknown, 0 Unchecked, 24.6s Time] [2021-11-21 01:42:14,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2439 states. [2021-11-21 01:42:15,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2439 to 1731. [2021-11-21 01:42:15,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1731 states, 1032 states have (on average 1.2596899224806202) internal successors, (1300), 1066 states have internal predecessors, (1300), 541 states have call successors, (541), 151 states have call predecessors, (541), 150 states have return successors, (542), 532 states have call predecessors, (542), 539 states have call successors, (542) [2021-11-21 01:42:15,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 2383 transitions. [2021-11-21 01:42:15,278 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 2383 transitions. Word has length 141 [2021-11-21 01:42:15,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:15,279 INFO L470 AbstractCegarLoop]: Abstraction has 1731 states and 2383 transitions. [2021-11-21 01:42:15,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 6.875) internal successors, (55), 10 states have internal predecessors, (55), 6 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2021-11-21 01:42:15,279 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 2383 transitions. [2021-11-21 01:42:15,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-21 01:42:15,281 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:15,282 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:15,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:42:15,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:42:15,495 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:42:15,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:15,496 INFO L85 PathProgramCache]: Analyzing trace with hash 153907835, now seen corresponding path program 1 times [2021-11-21 01:42:15,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:15,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306373822] [2021-11-21 01:42:15,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:15,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:15,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:15,680 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:42:15,681 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:15,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306373822] [2021-11-21 01:42:15,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306373822] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:15,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:15,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:42:15,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540226701] [2021-11-21 01:42:15,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:15,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:42:15,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:15,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:42:15,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:42:15,687 INFO L87 Difference]: Start difference. First operand 1731 states and 2383 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-21 01:42:18,188 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:42:23,248 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:42:23,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:23,459 INFO L93 Difference]: Finished difference Result 1731 states and 2383 transitions. [2021-11-21 01:42:23,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:42:23,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 [2021-11-21 01:42:23,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:23,468 INFO L225 Difference]: With dead ends: 1731 [2021-11-21 01:42:23,469 INFO L226 Difference]: Without dead ends: 1729 [2021-11-21 01:42:23,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:42:23,472 INFO L933 BasicCegarLoop]: 1228 mSDtfsCounter, 1009 mSDsluCounter, 1872 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 2840 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:23,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1014 Valid, 2840 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2021-11-21 01:42:23,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1729 states. [2021-11-21 01:42:23,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1729 to 1729. [2021-11-21 01:42:23,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1729 states, 1031 states have (on average 1.2589718719689622) internal successors, (1298), 1064 states have internal predecessors, (1298), 541 states have call successors, (541), 151 states have call predecessors, (541), 150 states have return successors, (542), 532 states have call predecessors, (542), 539 states have call successors, (542) [2021-11-21 01:42:23,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1729 states to 1729 states and 2381 transitions. [2021-11-21 01:42:23,689 INFO L78 Accepts]: Start accepts. Automaton has 1729 states and 2381 transitions. Word has length 128 [2021-11-21 01:42:23,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:23,689 INFO L470 AbstractCegarLoop]: Abstraction has 1729 states and 2381 transitions. [2021-11-21 01:42:23,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-21 01:42:23,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1729 states and 2381 transitions. [2021-11-21 01:42:23,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-21 01:42:23,692 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:23,693 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:23,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-21 01:42:23,693 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:42:23,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:23,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1678730247, now seen corresponding path program 1 times [2021-11-21 01:42:23,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:23,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118884176] [2021-11-21 01:42:23,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:23,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:23,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:23,896 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:42:23,897 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:23,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118884176] [2021-11-21 01:42:23,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118884176] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:23,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:23,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:42:23,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245251532] [2021-11-21 01:42:23,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:23,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:42:23,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:23,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:42:23,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:42:23,900 INFO L87 Difference]: Start difference. First operand 1729 states and 2381 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-21 01:42:26,378 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:42:27,735 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:31,721 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:42:31,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:31,924 INFO L93 Difference]: Finished difference Result 1729 states and 2381 transitions. [2021-11-21 01:42:31,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:42:31,925 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 [2021-11-21 01:42:31,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:31,932 INFO L225 Difference]: With dead ends: 1729 [2021-11-21 01:42:31,933 INFO L226 Difference]: Without dead ends: 1727 [2021-11-21 01:42:31,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:42:31,936 INFO L933 BasicCegarLoop]: 1226 mSDtfsCounter, 1006 mSDsluCounter, 1870 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 2836 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:31,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1011 Valid, 2836 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2021-11-21 01:42:31,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1727 states. [2021-11-21 01:42:32,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1727 to 1727. [2021-11-21 01:42:32,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1727 states, 1030 states have (on average 1.258252427184466) internal successors, (1296), 1062 states have internal predecessors, (1296), 541 states have call successors, (541), 151 states have call predecessors, (541), 150 states have return successors, (542), 532 states have call predecessors, (542), 539 states have call successors, (542) [2021-11-21 01:42:32,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1727 states to 1727 states and 2379 transitions. [2021-11-21 01:42:32,118 INFO L78 Accepts]: Start accepts. Automaton has 1727 states and 2379 transitions. Word has length 133 [2021-11-21 01:42:32,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:32,119 INFO L470 AbstractCegarLoop]: Abstraction has 1727 states and 2379 transitions. [2021-11-21 01:42:32,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-21 01:42:32,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1727 states and 2379 transitions. [2021-11-21 01:42:32,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-21 01:42:32,122 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:32,122 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:32,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-21 01:42:32,123 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:42:32,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:32,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1881579892, now seen corresponding path program 1 times [2021-11-21 01:42:32,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:32,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153663144] [2021-11-21 01:42:32,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:32,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:32,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:32,943 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 4 proven. 26 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2021-11-21 01:42:32,943 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:32,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153663144] [2021-11-21 01:42:32,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153663144] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:42:32,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496843217] [2021-11-21 01:42:32,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:32,944 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:42:32,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:42:32,946 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:42:32,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 01:42:33,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:34,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 3446 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-21 01:42:34,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:42:34,644 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2021-11-21 01:42:34,644 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:42:34,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496843217] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:34,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 01:42:34,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [9] total 16 [2021-11-21 01:42:34,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713281] [2021-11-21 01:42:34,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:34,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-21 01:42:34,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:34,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-21 01:42:34,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2021-11-21 01:42:34,646 INFO L87 Difference]: Start difference. First operand 1727 states and 2379 transitions. Second operand has 11 states, 8 states have (on average 7.625) internal successors, (61), 10 states have internal predecessors, (61), 6 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2021-11-21 01:42:38,750 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:42:41,091 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:44,305 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:51,741 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:53,369 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:00,798 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:43:01,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:01,047 INFO L93 Difference]: Finished difference Result 4182 states and 5934 transitions. [2021-11-21 01:43:01,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-21 01:43:01,047 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 7.625) internal successors, (61), 10 states have internal predecessors, (61), 6 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) Word has length 153 [2021-11-21 01:43:01,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:01,057 INFO L225 Difference]: With dead ends: 4182 [2021-11-21 01:43:01,057 INFO L226 Difference]: Without dead ends: 2473 [2021-11-21 01:43:01,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=396, Unknown=0, NotChecked=0, Total=462 [2021-11-21 01:43:01,068 INFO L933 BasicCegarLoop]: 1695 mSDtfsCounter, 953 mSDsluCounter, 16468 mSDsCounter, 0 mSdLazyCounter, 3056 mSolverCounterSat, 513 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 15764 SdHoareTripleChecker+Invalid, 3571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 513 IncrementalHoareTripleChecker+Valid, 3056 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:01,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [955 Valid, 15764 Invalid, 3571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [513 Valid, 3056 Invalid, 2 Unknown, 0 Unchecked, 25.8s Time] [2021-11-21 01:43:01,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2473 states. [2021-11-21 01:43:01,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2473 to 1727. [2021-11-21 01:43:01,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1727 states, 1030 states have (on average 1.258252427184466) internal successors, (1296), 1062 states have internal predecessors, (1296), 541 states have call successors, (541), 151 states have call predecessors, (541), 150 states have return successors, (542), 532 states have call predecessors, (542), 539 states have call successors, (542) [2021-11-21 01:43:01,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1727 states to 1727 states and 2379 transitions. [2021-11-21 01:43:01,287 INFO L78 Accepts]: Start accepts. Automaton has 1727 states and 2379 transitions. Word has length 153 [2021-11-21 01:43:01,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:01,288 INFO L470 AbstractCegarLoop]: Abstraction has 1727 states and 2379 transitions. [2021-11-21 01:43:01,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 7.625) internal successors, (61), 10 states have internal predecessors, (61), 6 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (24), 6 states have call predecessors, (24), 6 states have call successors, (24) [2021-11-21 01:43:01,289 INFO L276 IsEmpty]: Start isEmpty. Operand 1727 states and 2379 transitions. [2021-11-21 01:43:01,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-21 01:43:01,291 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:01,292 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:43:01,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-21 01:43:01,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-11-21 01:43:01,505 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:43:01,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:01,505 INFO L85 PathProgramCache]: Analyzing trace with hash -159908742, now seen corresponding path program 1 times [2021-11-21 01:43:01,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:01,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070462300] [2021-11-21 01:43:01,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:01,506 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:01,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:01,680 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:43:01,680 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:01,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070462300] [2021-11-21 01:43:01,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070462300] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:01,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:43:01,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:43:01,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072947498] [2021-11-21 01:43:01,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:01,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:43:01,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:01,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:43:01,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:43:01,683 INFO L87 Difference]: Start difference. First operand 1727 states and 2379 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-21 01:43:04,224 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:43:05,963 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:09,602 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:43:09,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:09,823 INFO L93 Difference]: Finished difference Result 1727 states and 2379 transitions. [2021-11-21 01:43:09,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:43:09,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 [2021-11-21 01:43:09,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:09,830 INFO L225 Difference]: With dead ends: 1727 [2021-11-21 01:43:09,830 INFO L226 Difference]: Without dead ends: 1725 [2021-11-21 01:43:09,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:43:09,832 INFO L933 BasicCegarLoop]: 1224 mSDtfsCounter, 1003 mSDsluCounter, 1868 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 2832 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:09,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1008 Valid, 2832 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2021-11-21 01:43:09,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2021-11-21 01:43:10,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1725. [2021-11-21 01:43:10,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1725 states, 1029 states have (on average 1.2575315840621963) internal successors, (1294), 1060 states have internal predecessors, (1294), 541 states have call successors, (541), 151 states have call predecessors, (541), 150 states have return successors, (542), 532 states have call predecessors, (542), 539 states have call successors, (542) [2021-11-21 01:43:10,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1725 states to 1725 states and 2377 transitions. [2021-11-21 01:43:10,058 INFO L78 Accepts]: Start accepts. Automaton has 1725 states and 2377 transitions. Word has length 138 [2021-11-21 01:43:10,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:10,059 INFO L470 AbstractCegarLoop]: Abstraction has 1725 states and 2377 transitions. [2021-11-21 01:43:10,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-21 01:43:10,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1725 states and 2377 transitions. [2021-11-21 01:43:10,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-21 01:43:10,062 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:10,062 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:43:10,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-21 01:43:10,063 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:43:10,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:10,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1346172472, now seen corresponding path program 1 times [2021-11-21 01:43:10,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:10,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153612608] [2021-11-21 01:43:10,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:10,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:10,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:10,262 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:43:10,263 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:10,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153612608] [2021-11-21 01:43:10,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153612608] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:10,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:43:10,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:43:10,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838283505] [2021-11-21 01:43:10,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:10,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:43:10,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:10,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:43:10,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:43:10,266 INFO L87 Difference]: Start difference. First operand 1725 states and 2377 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-21 01:43:12,791 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:43:14,185 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:18,299 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:43:18,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:18,518 INFO L93 Difference]: Finished difference Result 1725 states and 2377 transitions. [2021-11-21 01:43:18,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:43:18,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (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 [2021-11-21 01:43:18,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:18,524 INFO L225 Difference]: With dead ends: 1725 [2021-11-21 01:43:18,524 INFO L226 Difference]: Without dead ends: 1723 [2021-11-21 01:43:18,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:43:18,526 INFO L933 BasicCegarLoop]: 1222 mSDtfsCounter, 1000 mSDsluCounter, 1866 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1005 SdHoareTripleChecker+Valid, 2828 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:18,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1005 Valid, 2828 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 8.0s Time] [2021-11-21 01:43:18,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2021-11-21 01:43:18,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1723. [2021-11-21 01:43:18,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 1028 states have (on average 1.2568093385214008) internal successors, (1292), 1058 states have internal predecessors, (1292), 541 states have call successors, (541), 151 states have call predecessors, (541), 150 states have return successors, (542), 532 states have call predecessors, (542), 539 states have call successors, (542) [2021-11-21 01:43:18,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2375 transitions. [2021-11-21 01:43:18,761 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2375 transitions. Word has length 143 [2021-11-21 01:43:18,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:18,762 INFO L470 AbstractCegarLoop]: Abstraction has 1723 states and 2375 transitions. [2021-11-21 01:43:18,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-21 01:43:18,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2375 transitions. [2021-11-21 01:43:18,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-21 01:43:18,765 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:18,765 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:43:18,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-21 01:43:18,766 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:43:18,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:18,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1587605705, now seen corresponding path program 1 times [2021-11-21 01:43:18,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:18,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207518049] [2021-11-21 01:43:18,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:18,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:19,013 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2021-11-21 01:43:19,013 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:19,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207518049] [2021-11-21 01:43:19,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207518049] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:19,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:43:19,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:43:19,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501179380] [2021-11-21 01:43:19,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:19,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:43:19,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:19,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:43:19,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:43:19,015 INFO L87 Difference]: Start difference. First operand 1723 states and 2375 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-21 01:43:21,642 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:43:29,167 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:43:29,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:29,363 INFO L93 Difference]: Finished difference Result 3552 states and 4933 transitions. [2021-11-21 01:43:29,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:43:29,364 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) Word has length 161 [2021-11-21 01:43:29,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:29,373 INFO L225 Difference]: With dead ends: 3552 [2021-11-21 01:43:29,374 INFO L226 Difference]: Without dead ends: 1849 [2021-11-21 01:43:29,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:43:29,383 INFO L933 BasicCegarLoop]: 1326 mSDtfsCounter, 23 mSDsluCounter, 4517 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 5217 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:29,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 5217 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 881 Invalid, 2 Unknown, 0 Unchecked, 10.1s Time] [2021-11-21 01:43:29,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1849 states. [2021-11-21 01:43:29,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1849 to 1731. [2021-11-21 01:43:29,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1731 states, 1034 states have (on average 1.2553191489361701) internal successors, (1298), 1064 states have internal predecessors, (1298), 541 states have call successors, (541), 151 states have call predecessors, (541), 152 states have return successors, (552), 534 states have call predecessors, (552), 539 states have call successors, (552) [2021-11-21 01:43:29,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 2391 transitions. [2021-11-21 01:43:29,612 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 2391 transitions. Word has length 161 [2021-11-21 01:43:29,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:29,613 INFO L470 AbstractCegarLoop]: Abstraction has 1731 states and 2391 transitions. [2021-11-21 01:43:29,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-21 01:43:29,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 2391 transitions. [2021-11-21 01:43:29,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-21 01:43:29,616 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:29,616 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:43:29,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-21 01:43:29,617 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:43:29,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:29,617 INFO L85 PathProgramCache]: Analyzing trace with hash 40439556, now seen corresponding path program 1 times [2021-11-21 01:43:29,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:29,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064289072] [2021-11-21 01:43:29,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:29,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:29,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:29,783 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-21 01:43:29,783 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:29,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064289072] [2021-11-21 01:43:29,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064289072] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:29,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:43:29,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:43:29,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746995089] [2021-11-21 01:43:29,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:29,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:43:29,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:29,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:43:29,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:43:29,786 INFO L87 Difference]: Start difference. First operand 1731 states and 2391 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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) [2021-11-21 01:43:32,304 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:43:37,213 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:43:39,356 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:43:39,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:39,593 INFO L93 Difference]: Finished difference Result 1731 states and 2391 transitions. [2021-11-21 01:43:39,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:43:39,594 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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 [2021-11-21 01:43:39,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:39,601 INFO L225 Difference]: With dead ends: 1731 [2021-11-21 01:43:39,602 INFO L226 Difference]: Without dead ends: 1586 [2021-11-21 01:43:39,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:43:39,604 INFO L933 BasicCegarLoop]: 1221 mSDtfsCounter, 997 mSDsluCounter, 1866 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 2826 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:39,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1000 Valid, 2826 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 472 Invalid, 3 Unknown, 0 Unchecked, 9.6s Time] [2021-11-21 01:43:39,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2021-11-21 01:43:39,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1586. [2021-11-21 01:43:39,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 960 states have (on average 1.2708333333333333) internal successors, (1220), 987 states have internal predecessors, (1220), 491 states have call successors, (491), 131 states have call predecessors, (491), 132 states have return successors, (502), 486 states have call predecessors, (502), 489 states have call successors, (502) [2021-11-21 01:43:39,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 2213 transitions. [2021-11-21 01:43:39,810 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 2213 transitions. Word has length 148 [2021-11-21 01:43:39,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:39,810 INFO L470 AbstractCegarLoop]: Abstraction has 1586 states and 2213 transitions. [2021-11-21 01:43:39,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 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) [2021-11-21 01:43:39,811 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 2213 transitions. [2021-11-21 01:43:39,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-21 01:43:39,813 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:39,813 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:43:39,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-21 01:43:39,814 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:43:39,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:39,814 INFO L85 PathProgramCache]: Analyzing trace with hash 321698999, now seen corresponding path program 1 times [2021-11-21 01:43:39,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:39,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434723377] [2021-11-21 01:43:39,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:39,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:40,679 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 4 proven. 30 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2021-11-21 01:43:40,680 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:40,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434723377] [2021-11-21 01:43:40,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434723377] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:43:40,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300737032] [2021-11-21 01:43:40,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:40,680 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:43:40,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:43:40,686 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:43:40,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 01:43:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:41,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 3555 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-21 01:43:41,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:43:42,220 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2021-11-21 01:43:42,220 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:43:42,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300737032] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:42,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 01:43:42,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [9] total 17 [2021-11-21 01:43:42,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648495132] [2021-11-21 01:43:42,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:42,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-21 01:43:42,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:42,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-21 01:43:42,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2021-11-21 01:43:42,222 INFO L87 Difference]: Start difference. First operand 1586 states and 2213 transitions. Second operand has 12 states, 9 states have (on average 7.555555555555555) internal successors, (68), 11 states have internal predecessors, (68), 7 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 7 states have call predecessors, (29), 7 states have call successors, (29) [2021-11-21 01:43:46,813 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:54,036 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:43:58,571 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:44:11,803 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:44:12,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:44:12,088 INFO L93 Difference]: Finished difference Result 3882 states and 5564 transitions. [2021-11-21 01:44:12,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-21 01:44:12,089 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 7.555555555555555) internal successors, (68), 11 states have internal predecessors, (68), 7 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 7 states have call predecessors, (29), 7 states have call successors, (29) Word has length 175 [2021-11-21 01:44:12,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:44:12,099 INFO L225 Difference]: With dead ends: 3882 [2021-11-21 01:44:12,100 INFO L226 Difference]: Without dead ends: 2312 [2021-11-21 01:44:12,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=116, Invalid=640, Unknown=0, NotChecked=0, Total=756 [2021-11-21 01:44:12,109 INFO L933 BasicCegarLoop]: 1503 mSDtfsCounter, 1034 mSDsluCounter, 16350 mSDsCounter, 0 mSdLazyCounter, 3223 mSolverCounterSat, 463 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1042 SdHoareTripleChecker+Valid, 15388 SdHoareTripleChecker+Invalid, 3689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 463 IncrementalHoareTripleChecker+Valid, 3223 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:44:12,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1042 Valid, 15388 Invalid, 3689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [463 Valid, 3223 Invalid, 3 Unknown, 0 Unchecked, 29.2s Time] [2021-11-21 01:44:12,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2312 states. [2021-11-21 01:44:12,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2312 to 1586. [2021-11-21 01:44:12,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 960 states have (on average 1.2708333333333333) internal successors, (1220), 987 states have internal predecessors, (1220), 491 states have call successors, (491), 131 states have call predecessors, (491), 132 states have return successors, (502), 486 states have call predecessors, (502), 489 states have call successors, (502) [2021-11-21 01:44:12,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 2213 transitions. [2021-11-21 01:44:12,353 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 2213 transitions. Word has length 175 [2021-11-21 01:44:12,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:44:12,354 INFO L470 AbstractCegarLoop]: Abstraction has 1586 states and 2213 transitions. [2021-11-21 01:44:12,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 7.555555555555555) internal successors, (68), 11 states have internal predecessors, (68), 7 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (29), 7 states have call predecessors, (29), 7 states have call successors, (29) [2021-11-21 01:44:12,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 2213 transitions. [2021-11-21 01:44:12,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2021-11-21 01:44:12,358 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:44:12,359 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:44:12,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-21 01:44:12,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-11-21 01:44:12,575 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:44:12,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:44:12,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1605345731, now seen corresponding path program 1 times [2021-11-21 01:44:12,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:44:12,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938799609] [2021-11-21 01:44:12,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:44:12,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:44:12,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:44:13,031 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2021-11-21 01:44:13,032 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:44:13,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938799609] [2021-11-21 01:44:13,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938799609] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:44:13,032 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:44:13,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:44:13,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125329717] [2021-11-21 01:44:13,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:44:13,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:44:13,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:44:13,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:44:13,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:44:13,034 INFO L87 Difference]: Start difference. First operand 1586 states and 2213 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-21 01:44:16,296 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:18,953 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:44:23,673 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:44:23,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:44:23,931 INFO L93 Difference]: Finished difference Result 3158 states and 4405 transitions. [2021-11-21 01:44:23,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:44:23,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) Word has length 338 [2021-11-21 01:44:23,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:44:23,940 INFO L225 Difference]: With dead ends: 3158 [2021-11-21 01:44:23,940 INFO L226 Difference]: Without dead ends: 1590 [2021-11-21 01:44:23,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:44:23,950 INFO L933 BasicCegarLoop]: 1076 mSDtfsCounter, 0 mSDsluCounter, 3793 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4302 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:44:23,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 4302 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 769 Invalid, 2 Unknown, 0 Unchecked, 10.7s Time] [2021-11-21 01:44:23,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1590 states. [2021-11-21 01:44:24,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1590 to 1590. [2021-11-21 01:44:24,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 964 states have (on average 1.2697095435684647) internal successors, (1224), 989 states have internal predecessors, (1224), 491 states have call successors, (491), 131 states have call predecessors, (491), 132 states have return successors, (502), 488 states have call predecessors, (502), 489 states have call successors, (502) [2021-11-21 01:44:24,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 2217 transitions. [2021-11-21 01:44:24,165 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 2217 transitions. Word has length 338 [2021-11-21 01:44:24,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:44:24,166 INFO L470 AbstractCegarLoop]: Abstraction has 1590 states and 2217 transitions. [2021-11-21 01:44:24,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 3 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-21 01:44:24,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 2217 transitions. [2021-11-21 01:44:24,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2021-11-21 01:44:24,171 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:44:24,171 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:44:24,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-21 01:44:24,172 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:44:24,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:44:24,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1106716848, now seen corresponding path program 1 times [2021-11-21 01:44:24,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:44:24,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947701508] [2021-11-21 01:44:24,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:44:24,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:44:26,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:44:26,847 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2021-11-21 01:44:26,848 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:44:26,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947701508] [2021-11-21 01:44:26,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947701508] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:44:26,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:44:26,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:44:26,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708371515] [2021-11-21 01:44:26,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:44:26,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:44:26,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:44:26,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:44:26,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:44:26,852 INFO L87 Difference]: Start difference. First operand 1590 states and 2217 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-21 01:44:29,079 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:31,127 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:33,897 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:44:39,583 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:44:41,754 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:44:42,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:44:42,126 INFO L93 Difference]: Finished difference Result 2645 states and 3695 transitions. [2021-11-21 01:44:42,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:44:42,127 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 351 [2021-11-21 01:44:42,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:44:42,134 INFO L225 Difference]: With dead ends: 2645 [2021-11-21 01:44:42,134 INFO L226 Difference]: Without dead ends: 1684 [2021-11-21 01:44:42,146 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-21 01:44:42,147 INFO L933 BasicCegarLoop]: 1125 mSDtfsCounter, 33 mSDsluCounter, 3409 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 4097 SdHoareTripleChecker+Invalid, 1148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:44:42,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 4097 Invalid, 1148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1141 Invalid, 3 Unknown, 0 Unchecked, 15.0s Time] [2021-11-21 01:44:42,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1684 states. [2021-11-21 01:44:42,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1684 to 1610. [2021-11-21 01:44:42,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1610 states, 980 states have (on average 1.2714285714285714) internal successors, (1246), 1007 states have internal predecessors, (1246), 495 states have call successors, (495), 131 states have call predecessors, (495), 132 states have return successors, (506), 492 states have call predecessors, (506), 493 states have call successors, (506) [2021-11-21 01:44:42,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 2247 transitions. [2021-11-21 01:44:42,421 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 2247 transitions. Word has length 351 [2021-11-21 01:44:42,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:44:42,424 INFO L470 AbstractCegarLoop]: Abstraction has 1610 states and 2247 transitions. [2021-11-21 01:44:42,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-21 01:44:42,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 2247 transitions. [2021-11-21 01:44:42,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2021-11-21 01:44:42,428 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:44:42,428 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:44:42,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-21 01:44:42,429 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:44:42,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:44:42,430 INFO L85 PathProgramCache]: Analyzing trace with hash -950728955, now seen corresponding path program 1 times [2021-11-21 01:44:42,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:44:42,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385850418] [2021-11-21 01:44:42,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:44:42,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:44:42,563 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:44:42,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1454030862] [2021-11-21 01:44:42,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:44:42,563 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:44:42,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:44:42,565 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:44:42,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-21 01:44:43,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:44:43,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 4587 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-21 01:44:43,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:44:44,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 11 [2021-11-21 01:44:44,859 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2021-11-21 01:44:44,859 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:44:44,860 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:44:44,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385850418] [2021-11-21 01:44:44,860 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:44:44,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454030862] [2021-11-21 01:44:44,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454030862] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:44:44,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:44:44,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-21 01:44:44,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812057198] [2021-11-21 01:44:44,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:44:44,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-21 01:44:44,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:44:44,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-21 01:44:44,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-11-21 01:44:44,863 INFO L87 Difference]: Start difference. First operand 1610 states and 2247 transitions. Second operand has 10 states, 7 states have (on average 13.571428571428571) internal successors, (95), 8 states have internal predecessors, (95), 4 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (42), 4 states have call predecessors, (42), 4 states have call successors, (42) [2021-11-21 01:44:49,340 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:53,383 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:57,881 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:45:00,072 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:45:02,419 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:04,572 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:06,729 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:08,881 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:13,934 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:45:16,172 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:45:18,411 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:45:20,582 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:45:26,934 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:45:27,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:45:27,411 INFO L93 Difference]: Finished difference Result 3199 states and 4462 transitions. [2021-11-21 01:45:27,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-21 01:45:27,411 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 13.571428571428571) internal successors, (95), 8 states have internal predecessors, (95), 4 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (42), 4 states have call predecessors, (42), 4 states have call successors, (42) Word has length 352 [2021-11-21 01:45:27,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:45:27,417 INFO L225 Difference]: With dead ends: 3199 [2021-11-21 01:45:27,417 INFO L226 Difference]: Without dead ends: 1607 [2021-11-21 01:45:27,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-11-21 01:45:27,424 INFO L933 BasicCegarLoop]: 1069 mSDtfsCounter, 16 mSDsluCounter, 9433 mSDsCounter, 0 mSdLazyCounter, 2168 mSolverCounterSat, 6 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 9238 SdHoareTripleChecker+Invalid, 2185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2168 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:45:27,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 9238 Invalid, 2185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 2168 Invalid, 11 Unknown, 0 Unchecked, 42.0s Time] [2021-11-21 01:45:27,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1607 states. [2021-11-21 01:45:27,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1607 to 1604. [2021-11-21 01:45:27,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1604 states, 975 states have (on average 1.2687179487179487) internal successors, (1237), 1001 states have internal predecessors, (1237), 494 states have call successors, (494), 131 states have call predecessors, (494), 132 states have return successors, (505), 491 states have call predecessors, (505), 492 states have call successors, (505) [2021-11-21 01:45:27,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2236 transitions. [2021-11-21 01:45:27,693 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2236 transitions. Word has length 352 [2021-11-21 01:45:27,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:45:27,694 INFO L470 AbstractCegarLoop]: Abstraction has 1604 states and 2236 transitions. [2021-11-21 01:45:27,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 13.571428571428571) internal successors, (95), 8 states have internal predecessors, (95), 4 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (42), 4 states have call predecessors, (42), 4 states have call successors, (42) [2021-11-21 01:45:27,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2236 transitions. [2021-11-21 01:45:27,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2021-11-21 01:45:27,699 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:45:27,699 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:45:27,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-21 01:45:27,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-11-21 01:45:27,927 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_linux_arch_io_io_mem_unmapErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-21 01:45:27,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:45:27,927 INFO L85 PathProgramCache]: Analyzing trace with hash 177555676, now seen corresponding path program 1 times [2021-11-21 01:45:27,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:45:27,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769776089] [2021-11-21 01:45:27,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:27,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:45:28,102 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:45:28,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [215504395] [2021-11-21 01:45:28,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:28,103 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:45:28,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:45:28,104 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:45:28,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99ae7f7a-4aa8-488e-a405-8bd7385c9ec0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-21 01:45:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:45:29,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 4664 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-21 01:45:29,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:45:29,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:45:30,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 18 [2021-11-21 01:45:30,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:30,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 15 treesize of output 7 [2021-11-21 01:45:31,075 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 209 proven. 38 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2021-11-21 01:45:31,076 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:45:32,523 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 26 proven. 33 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-21 01:45:32,523 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:45:32,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769776089] [2021-11-21 01:45:32,524 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:45:32,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215504395] [2021-11-21 01:45:32,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215504395] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:45:32,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [800505183] [2021-11-21 01:45:32,552 INFO L159 IcfgInterpreter]: Started Sifa with 162 locations of interest [2021-11-21 01:45:32,553 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:45:32,558 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:45:32,564 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:45:32,565 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:45:37,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 120 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 81 [2021-11-21 01:45:40,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 120 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 81 [2021-11-21 01:46:11,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 120 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 81 [2021-11-21 01:46:25,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 120 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 81 [2021-11-21 01:46:44,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 120 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 81 [2021-11-21 01:46:50,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 120 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 81 [2021-11-21 01:47:06,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 120 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 81