./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2d0073111a5c7b021bc76098b9f15e3306b34538df9d4af329dd19631f32f125 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:28:16,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:28:16,167 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:28:16,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:28:16,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:28:16,194 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:28:16,196 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:28:16,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:28:16,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:28:16,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:28:16,202 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:28:16,204 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:28:16,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:28:16,205 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:28:16,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:28:16,208 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:28:16,209 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:28:16,210 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:28:16,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:28:16,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:28:16,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:28:16,219 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:28:16,220 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:28:16,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:28:16,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:28:16,226 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:28:16,227 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:28:16,228 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:28:16,229 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:28:16,230 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:28:16,230 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:28:16,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:28:16,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:28:16,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:28:16,235 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:28:16,235 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:28:16,236 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:28:16,237 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:28:16,237 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:28:16,238 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:28:16,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:28:16,241 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 14:28:16,321 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:28:16,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:28:16,343 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:28:16,343 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:28:16,344 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:28:16,345 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:28:16,345 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:28:16,345 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:28:16,346 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:28:16,346 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:28:16,346 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:28:16,347 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:28:16,347 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:28:16,347 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:28:16,348 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:28:16,348 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:28:16,348 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:28:16,349 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:28:16,349 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:28:16,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:28:16,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:28:16,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:28:16,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:28:16,355 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:28:16,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:28:16,355 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:28:16,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:28:16,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:28:16,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:28:16,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:28:16,358 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:28:16,358 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:28:16,358 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:28:16,359 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:28:16,359 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:28:16,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:28:16,360 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:28:16,361 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:28:16,361 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0073111a5c7b021bc76098b9f15e3306b34538df9d4af329dd19631f32f125 [2022-11-23 14:28:16,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:28:16,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:28:16,716 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:28:16,717 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:28:16,718 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:28:16,719 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i [2022-11-23 14:28:20,458 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:28:21,529 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:28:21,530 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i [2022-11-23 14:28:21,623 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/bin/utaipan-Q6hlc19bkW/data/7c7d08e47/a2a0cf394a2d4c92ac1eef65cd127d3c/FLAG7e86980dc [2022-11-23 14:28:21,642 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/bin/utaipan-Q6hlc19bkW/data/7c7d08e47/a2a0cf394a2d4c92ac1eef65cd127d3c [2022-11-23 14:28:21,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:28:21,648 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:28:21,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:28:21,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:28:21,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:28:21,661 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:28:21" (1/1) ... [2022-11-23 14:28:21,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a772ce4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:21, skipping insertion in model container [2022-11-23 14:28:21,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:28:21" (1/1) ... [2022-11-23 14:28:21,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:28:22,044 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:28:31,783 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659699,659712] [2022-11-23 14:28:31,788 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659844,659857] [2022-11-23 14:28:31,789 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659990,660003] [2022-11-23 14:28:31,790 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660155,660168] [2022-11-23 14:28:31,790 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660313,660326] [2022-11-23 14:28:31,791 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660471,660484] [2022-11-23 14:28:31,794 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660629,660642] [2022-11-23 14:28:31,795 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660789,660802] [2022-11-23 14:28:31,795 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660948,660961] [2022-11-23 14:28:31,796 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661087,661100] [2022-11-23 14:28:31,796 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661229,661242] [2022-11-23 14:28:31,797 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661378,661391] [2022-11-23 14:28:31,797 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661517,661530] [2022-11-23 14:28:31,798 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661672,661685] [2022-11-23 14:28:31,798 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661832,661845] [2022-11-23 14:28:31,799 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661983,661996] [2022-11-23 14:28:31,800 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662134,662147] [2022-11-23 14:28:31,800 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662286,662299] [2022-11-23 14:28:31,801 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662435,662448] [2022-11-23 14:28:31,801 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662583,662596] [2022-11-23 14:28:31,802 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662740,662753] [2022-11-23 14:28:31,802 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662889,662902] [2022-11-23 14:28:31,803 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663045,663058] [2022-11-23 14:28:31,804 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663198,663211] [2022-11-23 14:28:31,804 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663344,663357] [2022-11-23 14:28:31,805 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663487,663500] [2022-11-23 14:28:31,805 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663639,663652] [2022-11-23 14:28:31,806 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663785,663798] [2022-11-23 14:28:31,806 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663930,663943] [2022-11-23 14:28:31,807 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664084,664097] [2022-11-23 14:28:31,808 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664235,664248] [2022-11-23 14:28:31,808 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664390,664403] [2022-11-23 14:28:31,809 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664542,664555] [2022-11-23 14:28:31,809 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664697,664710] [2022-11-23 14:28:31,810 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664861,664874] [2022-11-23 14:28:31,810 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665017,665030] [2022-11-23 14:28:31,811 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665181,665194] [2022-11-23 14:28:31,811 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665323,665336] [2022-11-23 14:28:31,812 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665481,665494] [2022-11-23 14:28:31,812 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665648,665661] [2022-11-23 14:28:31,813 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665807,665820] [2022-11-23 14:28:31,814 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665966,665979] [2022-11-23 14:28:31,814 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666115,666128] [2022-11-23 14:28:31,815 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666262,666275] [2022-11-23 14:28:31,815 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666401,666414] [2022-11-23 14:28:31,816 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666564,666577] [2022-11-23 14:28:31,816 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666730,666743] [2022-11-23 14:28:31,817 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666894,666907] [2022-11-23 14:28:31,817 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667059,667072] [2022-11-23 14:28:31,818 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667224,667237] [2022-11-23 14:28:31,819 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667390,667403] [2022-11-23 14:28:31,819 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667555,667568] [2022-11-23 14:28:31,820 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667722,667735] [2022-11-23 14:28:31,820 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667882,667895] [2022-11-23 14:28:31,821 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668044,668057] [2022-11-23 14:28:31,821 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668203,668216] [2022-11-23 14:28:31,822 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668349,668362] [2022-11-23 14:28:31,823 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668492,668505] [2022-11-23 14:28:31,823 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668636,668649] [2022-11-23 14:28:31,824 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668779,668792] [2022-11-23 14:28:31,824 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668923,668936] [2022-11-23 14:28:31,825 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669064,669077] [2022-11-23 14:28:31,826 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669202,669215] [2022-11-23 14:28:31,826 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669360,669373] [2022-11-23 14:28:31,827 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669519,669532] [2022-11-23 14:28:31,827 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669675,669688] [2022-11-23 14:28:31,828 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669824,669837] [2022-11-23 14:28:31,829 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669976,669989] [2022-11-23 14:28:31,829 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670127,670140] [2022-11-23 14:28:31,830 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670276,670289] [2022-11-23 14:28:31,830 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670428,670441] [2022-11-23 14:28:31,831 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670576,670589] [2022-11-23 14:28:31,831 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670729,670742] [2022-11-23 14:28:31,832 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670880,670893] [2022-11-23 14:28:31,832 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671030,671043] [2022-11-23 14:28:31,833 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671177,671190] [2022-11-23 14:28:31,833 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671328,671341] [2022-11-23 14:28:31,834 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671479,671492] [2022-11-23 14:28:31,835 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671627,671640] [2022-11-23 14:28:31,835 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671793,671806] [2022-11-23 14:28:31,836 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671962,671975] [2022-11-23 14:28:31,836 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672129,672142] [2022-11-23 14:28:31,837 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672297,672310] [2022-11-23 14:28:31,837 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672447,672460] [2022-11-23 14:28:31,838 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672594,672607] [2022-11-23 14:28:31,838 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672755,672768] [2022-11-23 14:28:31,839 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672925,672938] [2022-11-23 14:28:31,839 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[673087,673100] [2022-11-23 14:28:31,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:28:31,944 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:28:33,049 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659699,659712] [2022-11-23 14:28:33,050 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659844,659857] [2022-11-23 14:28:33,051 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[659990,660003] [2022-11-23 14:28:33,052 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660155,660168] [2022-11-23 14:28:33,053 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660313,660326] [2022-11-23 14:28:33,054 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660471,660484] [2022-11-23 14:28:33,054 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660629,660642] [2022-11-23 14:28:33,055 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660789,660802] [2022-11-23 14:28:33,056 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[660948,660961] [2022-11-23 14:28:33,057 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661087,661100] [2022-11-23 14:28:33,057 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661229,661242] [2022-11-23 14:28:33,059 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661378,661391] [2022-11-23 14:28:33,059 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661517,661530] [2022-11-23 14:28:33,061 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661672,661685] [2022-11-23 14:28:33,061 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661832,661845] [2022-11-23 14:28:33,063 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[661983,661996] [2022-11-23 14:28:33,063 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662134,662147] [2022-11-23 14:28:33,064 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662286,662299] [2022-11-23 14:28:33,065 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662435,662448] [2022-11-23 14:28:33,066 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662583,662596] [2022-11-23 14:28:33,066 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662740,662753] [2022-11-23 14:28:33,067 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[662889,662902] [2022-11-23 14:28:33,067 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663045,663058] [2022-11-23 14:28:33,069 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663198,663211] [2022-11-23 14:28:33,070 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663344,663357] [2022-11-23 14:28:33,071 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663487,663500] [2022-11-23 14:28:33,071 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663639,663652] [2022-11-23 14:28:33,072 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663785,663798] [2022-11-23 14:28:33,072 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[663930,663943] [2022-11-23 14:28:33,073 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664084,664097] [2022-11-23 14:28:33,073 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664235,664248] [2022-11-23 14:28:33,074 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664390,664403] [2022-11-23 14:28:33,074 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664542,664555] [2022-11-23 14:28:33,075 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664697,664710] [2022-11-23 14:28:33,076 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[664861,664874] [2022-11-23 14:28:33,076 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665017,665030] [2022-11-23 14:28:33,077 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665181,665194] [2022-11-23 14:28:33,078 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665323,665336] [2022-11-23 14:28:33,079 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665481,665494] [2022-11-23 14:28:33,079 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665648,665661] [2022-11-23 14:28:33,081 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665807,665820] [2022-11-23 14:28:33,081 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[665966,665979] [2022-11-23 14:28:33,082 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666115,666128] [2022-11-23 14:28:33,082 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666262,666275] [2022-11-23 14:28:33,083 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666401,666414] [2022-11-23 14:28:33,083 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666564,666577] [2022-11-23 14:28:33,084 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666730,666743] [2022-11-23 14:28:33,084 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[666894,666907] [2022-11-23 14:28:33,085 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667059,667072] [2022-11-23 14:28:33,085 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667224,667237] [2022-11-23 14:28:33,086 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667390,667403] [2022-11-23 14:28:33,086 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667555,667568] [2022-11-23 14:28:33,088 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667722,667735] [2022-11-23 14:28:33,089 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[667882,667895] [2022-11-23 14:28:33,090 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668044,668057] [2022-11-23 14:28:33,091 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668203,668216] [2022-11-23 14:28:33,097 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668349,668362] [2022-11-23 14:28:33,098 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668492,668505] [2022-11-23 14:28:33,099 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668636,668649] [2022-11-23 14:28:33,099 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668779,668792] [2022-11-23 14:28:33,100 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[668923,668936] [2022-11-23 14:28:33,102 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669064,669077] [2022-11-23 14:28:33,107 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669202,669215] [2022-11-23 14:28:33,108 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669360,669373] [2022-11-23 14:28:33,108 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669519,669532] [2022-11-23 14:28:33,109 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669675,669688] [2022-11-23 14:28:33,110 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669824,669837] [2022-11-23 14:28:33,110 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[669976,669989] [2022-11-23 14:28:33,111 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670127,670140] [2022-11-23 14:28:33,111 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670276,670289] [2022-11-23 14:28:33,112 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670428,670441] [2022-11-23 14:28:33,112 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670576,670589] [2022-11-23 14:28:33,113 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670729,670742] [2022-11-23 14:28:33,113 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[670880,670893] [2022-11-23 14:28:33,114 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671030,671043] [2022-11-23 14:28:33,114 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671177,671190] [2022-11-23 14:28:33,115 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671328,671341] [2022-11-23 14:28:33,115 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671479,671492] [2022-11-23 14:28:33,116 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671627,671640] [2022-11-23 14:28:33,116 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671793,671806] [2022-11-23 14:28:33,117 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[671962,671975] [2022-11-23 14:28:33,117 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672129,672142] [2022-11-23 14:28:33,118 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672297,672310] [2022-11-23 14:28:33,118 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672447,672460] [2022-11-23 14:28:33,118 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672594,672607] [2022-11-23 14:28:33,119 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672755,672768] [2022-11-23 14:28:33,119 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[672925,672938] [2022-11-23 14:28:33,120 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i[673087,673100] [2022-11-23 14:28:33,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:28:33,573 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:28:33,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:33 WrapperNode [2022-11-23 14:28:33,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:28:33,575 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:28:33,576 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:28:33,576 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:28:33,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:33" (1/1) ... [2022-11-23 14:28:33,825 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:33" (1/1) ... [2022-11-23 14:28:34,240 INFO L138 Inliner]: procedures = 981, calls = 6465, calls flagged for inlining = 457, calls inlined = 329, statements flattened = 12997 [2022-11-23 14:28:34,241 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:28:34,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:28:34,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:28:34,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:28:34,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:33" (1/1) ... [2022-11-23 14:28:34,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:33" (1/1) ... [2022-11-23 14:28:34,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:33" (1/1) ... [2022-11-23 14:28:34,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:33" (1/1) ... [2022-11-23 14:28:34,704 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:33" (1/1) ... [2022-11-23 14:28:34,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:33" (1/1) ... [2022-11-23 14:28:34,821 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:33" (1/1) ... [2022-11-23 14:28:34,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:33" (1/1) ... [2022-11-23 14:28:34,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:28:34,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:28:34,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:28:34,952 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:28:34,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:33" (1/1) ... [2022-11-23 14:28:34,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:28:34,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:28:35,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:28:35,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ef2af8-c52e-4f68-97b4-b798f1c0f589/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:28:35,133 INFO L130 BoogieDeclarations]: Found specification of procedure dput [2022-11-23 14:28:35,134 INFO L138 BoogieDeclarations]: Found implementation of procedure dput [2022-11-23 14:28:35,134 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-23 14:28:35,134 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2022-11-23 14:28:35,134 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2022-11-23 14:28:35,134 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_DeleteNSEntry [2022-11-23 14:28:35,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_DeleteNSEntry [2022-11-23 14:28:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure ncp__io2vol [2022-11-23 14:28:35,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp__io2vol [2022-11-23 14:28:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-23 14:28:35,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-23 14:28:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_dates [2022-11-23 14:28:35,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_dates [2022-11-23 14:28:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure __ncp_start_request [2022-11-23 14:28:35,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __ncp_start_request [2022-11-23 14:28:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-23 14:28:35,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-23 14:28:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-23 14:28:35,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-23 14:28:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_obtain_info [2022-11-23 14:28:35,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_obtain_info [2022-11-23 14:28:35,136 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_file_write [2022-11-23 14:28:35,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_file_write [2022-11-23 14:28:35,137 INFO L130 BoogieDeclarations]: Found specification of procedure new_encode_dev [2022-11-23 14:28:35,137 INFO L138 BoogieDeclarations]: Found implementation of procedure new_encode_dev [2022-11-23 14:28:35,137 INFO L130 BoogieDeclarations]: Found specification of procedure sign_packet [2022-11-23 14:28:35,137 INFO L138 BoogieDeclarations]: Found implementation of procedure sign_packet [2022-11-23 14:28:35,137 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_file_mmap_fault [2022-11-23 14:28:35,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_file_mmap_fault [2022-11-23 14:28:35,138 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_obtain_nfs_info [2022-11-23 14:28:35,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_obtain_nfs_info [2022-11-23 14:28:35,138 INFO L130 BoogieDeclarations]: Found specification of procedure grab_cache_page [2022-11-23 14:28:35,138 INFO L138 BoogieDeclarations]: Found implementation of procedure grab_cache_page [2022-11-23 14:28:35,138 INFO L130 BoogieDeclarations]: Found specification of procedure get_current___1 [2022-11-23 14:28:35,138 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current___1 [2022-11-23 14:28:35,138 INFO L130 BoogieDeclarations]: Found specification of procedure get_current___0 [2022-11-23 14:28:35,139 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current___0 [2022-11-23 14:28:35,139 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_make_open [2022-11-23 14:28:35,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_make_open [2022-11-23 14:28:35,139 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-23 14:28:35,139 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-23 14:28:35,139 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2022-11-23 14:28:35,139 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2022-11-23 14:28:35,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-23 14:28:35,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-23 14:28:35,140 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2022-11-23 14:28:35,140 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2022-11-23 14:28:35,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-23 14:28:35,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-23 14:28:35,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-23 14:28:35,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-23 14:28:35,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:28:35,141 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_ioctl [2022-11-23 14:28:35,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_ioctl [2022-11-23 14:28:35,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-23 14:28:35,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-23 14:28:35,141 INFO L130 BoogieDeclarations]: Found specification of procedure kmap [2022-11-23 14:28:35,142 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap [2022-11-23 14:28:35,142 INFO L130 BoogieDeclarations]: Found specification of procedure iunique [2022-11-23 14:28:35,142 INFO L138 BoogieDeclarations]: Found implementation of procedure iunique [2022-11-23 14:28:35,142 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_le16 [2022-11-23 14:28:35,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_le16 [2022-11-23 14:28:35,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-23 14:28:35,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-23 14:28:35,143 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_statfs [2022-11-23 14:28:35,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_statfs [2022-11-23 14:28:35,143 INFO L130 BoogieDeclarations]: Found specification of procedure assert_server_locked [2022-11-23 14:28:35,143 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_server_locked [2022-11-23 14:28:35,143 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-23 14:28:35,143 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-23 14:28:35,143 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_write_kernel [2022-11-23 14:28:35,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_write_kernel [2022-11-23 14:28:35,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-23 14:28:35,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-23 14:28:35,144 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_byte [2022-11-23 14:28:35,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_byte [2022-11-23 14:28:35,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:28:35,144 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2022-11-23 14:28:35,144 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2022-11-23 14:28:35,144 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~wchar_t~0~X~$Pointer$~X~int~TO~int [2022-11-23 14:28:35,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~wchar_t~0~X~$Pointer$~X~int~TO~int [2022-11-23 14:28:35,145 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_write [2022-11-23 14:28:35,145 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_write [2022-11-23 14:28:35,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-23 14:28:35,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-23 14:28:35,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:28:35,145 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_destroy_inode [2022-11-23 14:28:35,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_destroy_inode [2022-11-23 14:28:35,145 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_attrs [2022-11-23 14:28:35,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_attrs [2022-11-23 14:28:35,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-23 14:28:35,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-23 14:28:35,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:28:35,146 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-23 14:28:35,146 INFO L130 BoogieDeclarations]: Found specification of procedure bdi_destroy [2022-11-23 14:28:35,146 INFO L138 BoogieDeclarations]: Found implementation of procedure bdi_destroy [2022-11-23 14:28:35,146 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-23 14:28:35,147 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-23 14:28:35,147 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_get_volume_root [2022-11-23 14:28:35,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_get_volume_root [2022-11-23 14:28:35,147 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-23 14:28:35,147 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-23 14:28:35,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_ncp_server [2022-11-23 14:28:35,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mutex_of_ncp_server [2022-11-23 14:28:35,147 INFO L130 BoogieDeclarations]: Found specification of procedure unload_nls [2022-11-23 14:28:35,147 INFO L138 BoogieDeclarations]: Found implementation of procedure unload_nls [2022-11-23 14:28:35,148 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_request [2022-11-23 14:28:35,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_request [2022-11-23 14:28:35,148 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_date_dos2unix [2022-11-23 14:28:35,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_date_dos2unix [2022-11-23 14:28:35,148 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_new_dentry [2022-11-23 14:28:35,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_new_dentry [2022-11-23 14:28:35,148 INFO L130 BoogieDeclarations]: Found specification of procedure recalc_sigpending [2022-11-23 14:28:35,148 INFO L138 BoogieDeclarations]: Found implementation of procedure recalc_sigpending [2022-11-23 14:28:35,149 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-23 14:28:35,149 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-23 14:28:35,149 INFO L130 BoogieDeclarations]: Found specification of procedure nls_tolower [2022-11-23 14:28:35,149 INFO L138 BoogieDeclarations]: Found implementation of procedure nls_tolower [2022-11-23 14:28:35,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:28:35,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:28:35,149 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-23 14:28:35,149 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-23 14:28:35,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_open_mutex_of_ncp_inode_info [2022-11-23 14:28:35,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_open_mutex_of_ncp_inode_info [2022-11-23 14:28:35,150 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_page [2022-11-23 14:28:35,150 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_page [2022-11-23 14:28:35,150 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2022-11-23 14:28:35,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2022-11-23 14:28:35,150 INFO L130 BoogieDeclarations]: Found specification of procedure dir_emit [2022-11-23 14:28:35,150 INFO L138 BoogieDeclarations]: Found implementation of procedure dir_emit [2022-11-23 14:28:35,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 14:28:35,150 INFO L130 BoogieDeclarations]: Found specification of procedure release_sock [2022-11-23 14:28:35,150 INFO L138 BoogieDeclarations]: Found implementation of procedure release_sock [2022-11-23 14:28:35,151 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2022-11-23 14:28:35,151 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2022-11-23 14:28:35,151 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-23 14:28:35,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_146 [2022-11-23 14:28:35,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_146 [2022-11-23 14:28:35,151 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_rmdir [2022-11-23 14:28:35,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_rmdir [2022-11-23 14:28:35,151 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-23 14:28:35,152 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-23 14:28:35,152 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_file_read [2022-11-23 14:28:35,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_file_read [2022-11-23 14:28:35,152 INFO L130 BoogieDeclarations]: Found specification of procedure d_instantiate [2022-11-23 14:28:35,152 INFO L138 BoogieDeclarations]: Found implementation of procedure d_instantiate [2022-11-23 14:28:35,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_i_mutex_of_inode [2022-11-23 14:28:35,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_i_mutex_of_inode [2022-11-23 14:28:35,152 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_compat_ioctl [2022-11-23 14:28:35,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_compat_ioctl [2022-11-23 14:28:35,153 INFO L130 BoogieDeclarations]: Found specification of procedure WSET_LH [2022-11-23 14:28:35,153 INFO L138 BoogieDeclarations]: Found implementation of procedure WSET_LH [2022-11-23 14:28:35,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 14:28:35,153 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 14:28:35,153 INFO L130 BoogieDeclarations]: Found specification of procedure setattr_copy [2022-11-23 14:28:35,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setattr_copy [2022-11-23 14:28:35,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-23 14:28:35,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-23 14:28:35,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_for_read_section [2022-11-23 14:28:35,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_for_read_section [2022-11-23 14:28:35,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-23 14:28:35,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-23 14:28:35,154 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_data [2022-11-23 14:28:35,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_data [2022-11-23 14:28:35,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:28:35,155 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-23 14:28:35,155 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-23 14:28:35,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-23 14:28:35,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-23 14:28:35,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:28:35,155 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-23 14:28:35,156 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-23 14:28:35,156 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_d_prune [2022-11-23 14:28:35,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_d_prune [2022-11-23 14:28:35,156 INFO L130 BoogieDeclarations]: Found specification of procedure lock_sock [2022-11-23 14:28:35,156 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_sock [2022-11-23 14:28:35,156 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_byte [2022-11-23 14:28:35,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_byte [2022-11-23 14:28:35,156 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_init_header [2022-11-23 14:28:35,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_init_header [2022-11-23 14:28:35,157 INFO L130 BoogieDeclarations]: Found specification of procedure pagecache_get_page [2022-11-23 14:28:35,157 INFO L138 BoogieDeclarations]: Found implementation of procedure pagecache_get_page [2022-11-23 14:28:35,157 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_mem [2022-11-23 14:28:35,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_mem [2022-11-23 14:28:35,157 INFO L130 BoogieDeclarations]: Found specification of procedure kill_anon_super [2022-11-23 14:28:35,157 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_anon_super [2022-11-23 14:28:35,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_root_setup_lock_of_ncp_server [2022-11-23 14:28:35,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_root_setup_lock_of_ncp_server [2022-11-23 14:28:35,158 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_is_server_root [2022-11-23 14:28:35,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_is_server_root [2022-11-23 14:28:35,158 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_is_nfs_extras [2022-11-23 14:28:35,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_is_nfs_extras [2022-11-23 14:28:35,158 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_release [2022-11-23 14:28:35,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_release [2022-11-23 14:28:35,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-23 14:28:35,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-23 14:28:35,159 INFO L130 BoogieDeclarations]: Found specification of procedure ncpdgram_send [2022-11-23 14:28:35,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ncpdgram_send [2022-11-23 14:28:35,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-23 14:28:35,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-23 14:28:35,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2022-11-23 14:28:35,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2022-11-23 14:28:35,160 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_inode_close [2022-11-23 14:28:35,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_inode_close [2022-11-23 14:28:35,160 INFO L130 BoogieDeclarations]: Found specification of procedure NCP_FINFO [2022-11-23 14:28:35,160 INFO L138 BoogieDeclarations]: Found implementation of procedure NCP_FINFO [2022-11-23 14:28:35,160 INFO L130 BoogieDeclarations]: Found specification of procedure ncp__vol2io [2022-11-23 14:28:35,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp__vol2io [2022-11-23 14:28:35,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_creq_mutex_of_NOT_ARG_SIGN [2022-11-23 14:28:35,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_creq_mutex_of_NOT_ARG_SIGN [2022-11-23 14:28:35,161 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_RenameNSEntry [2022-11-23 14:28:35,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_RenameNSEntry [2022-11-23 14:28:35,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_i_mutex_of_inode [2022-11-23 14:28:35,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_i_mutex_of_inode [2022-11-23 14:28:35,161 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2022-11-23 14:28:35,162 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2022-11-23 14:28:35,162 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_notify_change [2022-11-23 14:28:35,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_notify_change [2022-11-23 14:28:35,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_75 [2022-11-23 14:28:35,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_75 [2022-11-23 14:28:35,162 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_dword [2022-11-23 14:28:35,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_dword [2022-11-23 14:28:35,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-23 14:28:35,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-23 14:28:35,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:28:35,163 INFO L130 BoogieDeclarations]: Found specification of procedure mark_inode_dirty [2022-11-23 14:28:35,163 INFO L138 BoogieDeclarations]: Found implementation of procedure mark_inode_dirty [2022-11-23 14:28:35,163 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_inode [2022-11-23 14:28:35,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_inode [2022-11-23 14:28:35,163 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_del_file_or_subdir [2022-11-23 14:28:35,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_del_file_or_subdir [2022-11-23 14:28:35,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 14:28:35,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 14:28:35,164 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_create_new [2022-11-23 14:28:35,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_create_new [2022-11-23 14:28:35,164 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2022-11-23 14:28:35,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2022-11-23 14:28:35,164 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-23 14:28:35,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-23 14:28:35,165 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_init_request [2022-11-23 14:28:35,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_init_request [2022-11-23 14:28:35,165 INFO L130 BoogieDeclarations]: Found specification of procedure PageUptodate [2022-11-23 14:28:35,165 INFO L138 BoogieDeclarations]: Found implementation of procedure PageUptodate [2022-11-23 14:28:35,165 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-23 14:28:35,166 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-23 14:28:35,166 INFO L130 BoogieDeclarations]: Found specification of procedure kunmap [2022-11-23 14:28:35,166 INFO L138 BoogieDeclarations]: Found implementation of procedure kunmap [2022-11-23 14:28:35,166 INFO L130 BoogieDeclarations]: Found specification of procedure NCP_SBP [2022-11-23 14:28:35,166 INFO L138 BoogieDeclarations]: Found implementation of procedure NCP_SBP [2022-11-23 14:28:35,166 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2022-11-23 14:28:35,167 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2022-11-23 14:28:35,167 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_hash_dentry [2022-11-23 14:28:35,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_hash_dentry [2022-11-23 14:28:35,167 INFO L130 BoogieDeclarations]: Found specification of procedure load_nls_default [2022-11-23 14:28:35,167 INFO L138 BoogieDeclarations]: Found implementation of procedure load_nls_default [2022-11-23 14:28:35,167 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-23 14:28:35,167 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-23 14:28:35,168 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_open_create_file_or_subdir [2022-11-23 14:28:35,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_open_create_file_or_subdir [2022-11-23 14:28:35,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-23 14:28:35,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-23 14:28:35,168 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-23 14:28:35,168 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-23 14:28:35,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 14:28:35,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 14:28:35,169 INFO L130 BoogieDeclarations]: Found specification of procedure WVAL_LH___0 [2022-11-23 14:28:35,169 INFO L138 BoogieDeclarations]: Found implementation of procedure WVAL_LH___0 [2022-11-23 14:28:35,169 INFO L130 BoogieDeclarations]: Found specification of procedure d_rehash [2022-11-23 14:28:35,169 INFO L138 BoogieDeclarations]: Found implementation of procedure d_rehash [2022-11-23 14:28:35,169 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_evict_inode [2022-11-23 14:28:35,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_evict_inode [2022-11-23 14:28:35,169 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_show_options [2022-11-23 14:28:35,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_show_options [2022-11-23 14:28:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-23 14:28:35,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-23 14:28:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-23 14:28:35,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-23 14:28:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure generic_file_llseek [2022-11-23 14:28:35,170 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_file_llseek [2022-11-23 14:28:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_before_release_sock [2022-11-23 14:28:35,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_before_release_sock [2022-11-23 14:28:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_be16 [2022-11-23 14:28:35,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_be16 [2022-11-23 14:28:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_make_closed [2022-11-23 14:28:35,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_make_closed [2022-11-23 14:28:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-23 14:28:35,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-23 14:28:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_del_file_or_subdir2 [2022-11-23 14:28:35,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_del_file_or_subdir2 [2022-11-23 14:28:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_modify_nfs_info [2022-11-23 14:28:35,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_modify_nfs_info [2022-11-23 14:28:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_case_sensitive [2022-11-23 14:28:35,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_case_sensitive [2022-11-23 14:28:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 14:28:35,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 14:28:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-23 14:28:35,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-23 14:28:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_inodecache [2022-11-23 14:28:35,173 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_inodecache [2022-11-23 14:28:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:28:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~~loff_t~0~X~~u64~0~X~int~TO~int [2022-11-23 14:28:35,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~~loff_t~0~X~~u64~0~X~int~TO~int [2022-11-23 14:28:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure __ncp_abort_request [2022-11-23 14:28:35,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __ncp_abort_request [2022-11-23 14:28:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure from_kuid_munged [2022-11-23 14:28:35,174 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kuid_munged [2022-11-23 14:28:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2022-11-23 14:28:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_word [2022-11-23 14:28:35,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_word [2022-11-23 14:28:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_dword_lh [2022-11-23 14:28:35,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_dword_lh [2022-11-23 14:28:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 14:28:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_do_request [2022-11-23 14:28:35,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_do_request [2022-11-23 14:28:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-23 14:28:35,175 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-23 14:28:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_inode_close___3 [2022-11-23 14:28:35,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_inode_close___3 [2022-11-23 14:28:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 14:28:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_date_unix2dos [2022-11-23 14:28:35,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_date_unix2dos [2022-11-23 14:28:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-23 14:28:35,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-23 14:28:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-23 14:28:35,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-23 14:28:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 14:28:35,177 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 14:28:35,177 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_ren_or_mov_file_or_subdir [2022-11-23 14:28:35,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_ren_or_mov_file_or_subdir [2022-11-23 14:28:35,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-23 14:28:35,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-23 14:28:35,177 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2022-11-23 14:28:35,177 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2022-11-23 14:28:35,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_creq_mutex_of_NOT_ARG_SIGN [2022-11-23 14:28:35,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_creq_mutex_of_NOT_ARG_SIGN [2022-11-23 14:28:35,178 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_request2 [2022-11-23 14:28:35,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_request2 [2022-11-23 14:28:35,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-23 14:28:35,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-23 14:28:35,178 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_init_request_s [2022-11-23 14:28:35,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_init_request_s [2022-11-23 14:28:35,179 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-23 14:28:35,179 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-23 14:28:35,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-23 14:28:35,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-23 14:28:35,179 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_lock_server [2022-11-23 14:28:35,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_lock_server [2022-11-23 14:28:35,179 INFO L130 BoogieDeclarations]: Found specification of procedure DSET_LH [2022-11-23 14:28:35,180 INFO L138 BoogieDeclarations]: Found implementation of procedure DSET_LH [2022-11-23 14:28:35,180 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_close_file [2022-11-23 14:28:35,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_close_file [2022-11-23 14:28:35,180 INFO L130 BoogieDeclarations]: Found specification of procedure nwsign [2022-11-23 14:28:35,180 INFO L138 BoogieDeclarations]: Found implementation of procedure nwsign [2022-11-23 14:28:35,180 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2022-11-23 14:28:35,180 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2022-11-23 14:28:35,180 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_known_namespace [2022-11-23 14:28:35,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_known_namespace [2022-11-23 14:28:35,181 INFO L130 BoogieDeclarations]: Found specification of procedure load_nls [2022-11-23 14:28:35,181 INFO L138 BoogieDeclarations]: Found implementation of procedure load_nls [2022-11-23 14:28:35,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_net_sock__double_release [2022-11-23 14:28:35,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_net_sock__double_release [2022-11-23 14:28:35,181 INFO L130 BoogieDeclarations]: Found specification of procedure DVAL_LH___0 [2022-11-23 14:28:35,181 INFO L138 BoogieDeclarations]: Found implementation of procedure DVAL_LH___0 [2022-11-23 14:28:35,181 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_readdir [2022-11-23 14:28:35,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_readdir [2022-11-23 14:28:35,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-23 14:28:35,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-23 14:28:35,182 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2022-11-23 14:28:35,182 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2022-11-23 14:28:35,182 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_read_kernel [2022-11-23 14:28:35,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_read_kernel [2022-11-23 14:28:35,182 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-23 14:28:35,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-23 14:28:35,183 INFO L130 BoogieDeclarations]: Found specification of procedure rol32 [2022-11-23 14:28:35,183 INFO L138 BoogieDeclarations]: Found implementation of procedure rol32 [2022-11-23 14:28:35,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 14:28:35,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 14:28:35,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 14:28:35,183 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-11-23 14:28:35,183 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-11-23 14:28:35,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-23 14:28:35,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-23 14:28:35,184 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_disconnect [2022-11-23 14:28:35,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_disconnect [2022-11-23 14:28:35,184 INFO L130 BoogieDeclarations]: Found specification of procedure inode_permission [2022-11-23 14:28:35,184 INFO L138 BoogieDeclarations]: Found implementation of procedure inode_permission [2022-11-23 14:28:35,184 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_extract_file_info [2022-11-23 14:28:35,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_extract_file_info [2022-11-23 14:28:35,185 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_modify_file_or_subdir_dos_info_path [2022-11-23 14:28:35,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_modify_file_or_subdir_dos_info_path [2022-11-23 14:28:35,185 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_put_super [2022-11-23 14:28:35,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_put_super [2022-11-23 14:28:35,185 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_lookup_volume [2022-11-23 14:28:35,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_lookup_volume [2022-11-23 14:28:35,185 INFO L130 BoogieDeclarations]: Found specification of procedure __ncptcp_try_send [2022-11-23 14:28:35,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __ncptcp_try_send [2022-11-23 14:28:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2022-11-23 14:28:35,186 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2022-11-23 14:28:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-23 14:28:35,186 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-23 14:28:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_mmap [2022-11-23 14:28:35,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_mmap [2022-11-23 14:28:35,186 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_be16 [2022-11-23 14:28:35,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_be16 [2022-11-23 14:28:35,187 INFO L130 BoogieDeclarations]: Found specification of procedure do_send [2022-11-23 14:28:35,187 INFO L138 BoogieDeclarations]: Found implementation of procedure do_send [2022-11-23 14:28:35,187 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-23 14:28:35,187 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-23 14:28:35,187 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_pstring [2022-11-23 14:28:35,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_pstring [2022-11-23 14:28:35,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_root_setup_lock_of_ncp_server [2022-11-23 14:28:35,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_root_setup_lock_of_ncp_server [2022-11-23 14:28:35,188 INFO L130 BoogieDeclarations]: Found specification of procedure generic_read_dir [2022-11-23 14:28:35,188 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_read_dir [2022-11-23 14:28:35,188 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_obtain_mtime [2022-11-23 14:28:35,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_obtain_mtime [2022-11-23 14:28:35,188 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_unlink [2022-11-23 14:28:35,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_unlink [2022-11-23 14:28:35,189 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_dword [2022-11-23 14:28:35,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_dword [2022-11-23 14:28:35,189 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2022-11-23 14:28:35,189 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2022-11-23 14:28:35,189 INFO L130 BoogieDeclarations]: Found specification of procedure file_accessed [2022-11-23 14:28:35,189 INFO L138 BoogieDeclarations]: Found implementation of procedure file_accessed [2022-11-23 14:28:35,189 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2022-11-23 14:28:35,189 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2022-11-23 14:28:35,190 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_age_dentry [2022-11-23 14:28:35,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_age_dentry [2022-11-23 14:28:35,190 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_handle_path [2022-11-23 14:28:35,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_handle_path [2022-11-23 14:28:35,190 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2022-11-23 14:28:35,190 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2022-11-23 14:28:35,190 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2022-11-23 14:28:35,190 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2022-11-23 14:28:35,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 14:28:35,191 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-23 14:28:35,191 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-23 14:28:35,191 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-23 14:28:35,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-23 14:28:35,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-23 14:28:35,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-23 14:28:35,191 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_iget [2022-11-23 14:28:35,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_iget [2022-11-23 14:28:35,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-23 14:28:35,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-23 14:28:35,192 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_fill_cache [2022-11-23 14:28:35,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_fill_cache [2022-11-23 14:28:35,192 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_stop_tasks [2022-11-23 14:28:35,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_stop_tasks [2022-11-23 14:28:35,192 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_dirent [2022-11-23 14:28:35,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_dirent [2022-11-23 14:28:35,193 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_instantiate [2022-11-23 14:28:35,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_instantiate [2022-11-23 14:28:35,193 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_single_volume [2022-11-23 14:28:35,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_single_volume [2022-11-23 14:28:35,193 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_symlink_readpage [2022-11-23 14:28:35,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_symlink_readpage [2022-11-23 14:28:35,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-23 14:28:35,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-23 14:28:35,194 INFO L130 BoogieDeclarations]: Found specification of procedure DVAL_LH [2022-11-23 14:28:35,194 INFO L138 BoogieDeclarations]: Found implementation of procedure DVAL_LH [2022-11-23 14:28:35,194 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-23 14:28:35,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2022-11-23 14:28:35,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_74 [2022-11-23 14:28:35,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_74 [2022-11-23 14:28:35,194 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_reply_dword_lh [2022-11-23 14:28:35,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_reply_dword_lh [2022-11-23 14:28:35,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-23 14:28:35,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-23 14:28:35,195 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 14:28:35,195 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 14:28:35,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_siglock_of_sighand_struct [2022-11-23 14:28:35,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_siglock_of_sighand_struct [2022-11-23 14:28:35,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-23 14:28:35,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-23 14:28:35,196 INFO L130 BoogieDeclarations]: Found specification of procedure SetPageUptodate [2022-11-23 14:28:35,196 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPageUptodate [2022-11-23 14:28:35,196 INFO L130 BoogieDeclarations]: Found specification of procedure uid_eq [2022-11-23 14:28:35,196 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_eq [2022-11-23 14:28:35,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-23 14:28:35,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-23 14:28:35,197 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_req_put [2022-11-23 14:28:35,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_req_put [2022-11-23 14:28:35,197 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-23 14:28:35,197 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-23 14:28:35,197 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-23 14:28:35,197 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-23 14:28:35,197 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_conn_valid [2022-11-23 14:28:35,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_conn_valid [2022-11-23 14:28:35,198 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-23 14:28:35,198 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-23 14:28:35,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-23 14:28:35,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-23 14:28:35,198 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_add_be32 [2022-11-23 14:28:35,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_add_be32 [2022-11-23 14:28:35,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_open_mutex_of_ncp_inode_info [2022-11-23 14:28:35,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_open_mutex_of_ncp_inode_info [2022-11-23 14:28:35,199 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_finish_request [2022-11-23 14:28:35,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_finish_request [2022-11-23 14:28:35,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-23 14:28:35,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-23 14:28:35,199 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_update_inode2 [2022-11-23 14:28:35,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_update_inode2 [2022-11-23 14:28:35,199 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-23 14:28:35,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-23 14:28:35,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:28:35,200 INFO L130 BoogieDeclarations]: Found specification of procedure gid_eq [2022-11-23 14:28:35,200 INFO L138 BoogieDeclarations]: Found implementation of procedure gid_eq [2022-11-23 14:28:35,200 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-23 14:28:35,200 INFO L130 BoogieDeclarations]: Found specification of procedure ncp_unlock_server [2022-11-23 14:28:35,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ncp_unlock_server [2022-11-23 14:28:35,200 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le64 [2022-11-23 14:28:35,200 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le64 [2022-11-23 14:28:37,124 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:28:37,130 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:28:37,436 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 14:28:53,270 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:28:56,740 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:28:56,741 INFO L300 CfgBuilder]: Removed 17 assume(true) statements. [2022-11-23 14:28:56,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:28:56 BoogieIcfgContainer [2022-11-23 14:28:56,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:28:56,754 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:28:56,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:28:56,759 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:28:56,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:28:21" (1/3) ... [2022-11-23 14:28:56,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79cdd698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:28:56, skipping insertion in model container [2022-11-23 14:28:56,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:28:33" (2/3) ... [2022-11-23 14:28:56,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79cdd698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:28:56, skipping insertion in model container [2022-11-23 14:28:56,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:28:56" (3/3) ... [2022-11-23 14:28:56,770 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---fs--ncpfs--ncpfs.ko.cil.i [2022-11-23 14:28:56,797 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:28:56,797 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2022-11-23 14:28:56,978 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:28:56,985 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1ce08b49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:28:56,986 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2022-11-23 14:28:57,006 INFO L276 IsEmpty]: Start isEmpty. Operand has 3581 states, 2044 states have (on average 1.3087084148727985) internal successors, (2675), 2136 states have internal predecessors, (2675), 1261 states have call successors, (1261), 246 states have call predecessors, (1261), 245 states have return successors, (1252), 1230 states have call predecessors, (1252), 1252 states have call successors, (1252) [2022-11-23 14:28:57,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-23 14:28:57,016 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:28:57,017 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-23 14:28:57,018 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_for_read_sectionErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:28:57,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:28:57,025 INFO L85 PathProgramCache]: Analyzing trace with hash -2122548548, now seen corresponding path program 1 times [2022-11-23 14:28:57,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:28:57,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916377532] [2022-11-23 14:28:57,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:28:57,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:28:57,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:28:58,622 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 14:28:58,623 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:28:58,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916377532] [2022-11-23 14:28:58,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916377532] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:28:58,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:28:58,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:28:58,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463820696] [2022-11-23 14:28:58,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:28:58,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:28:58,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:28:58,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:28:58,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:28:58,711 INFO L87 Difference]: Start difference. First operand has 3581 states, 2044 states have (on average 1.3087084148727985) internal successors, (2675), 2136 states have internal predecessors, (2675), 1261 states have call successors, (1261), 246 states have call predecessors, (1261), 245 states have return successors, (1252), 1230 states have call predecessors, (1252), 1252 states have call successors, (1252) Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 14:29:05,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:29:05,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:29:05,854 INFO L93 Difference]: Finished difference Result 7111 states and 10670 transitions. [2022-11-23 14:29:05,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:29:05,857 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 35 [2022-11-23 14:29:05,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:29:06,009 INFO L225 Difference]: With dead ends: 7111 [2022-11-23 14:29:06,009 INFO L226 Difference]: Without dead ends: 3534 [2022-11-23 14:29:06,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:29:06,115 INFO L413 NwaCegarLoop]: 4610 mSDtfsCounter, 5082 mSDsluCounter, 4602 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5087 SdHoareTripleChecker+Valid, 9212 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:29:06,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5087 Valid, 9212 Invalid, 949 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 948 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-11-23 14:29:06,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3534 states. [2022-11-23 14:29:06,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3534 to 3532. [2022-11-23 14:29:06,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3532 states, 2019 states have (on average 1.283308568598316) internal successors, (2591), 2094 states have internal predecessors, (2591), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2022-11-23 14:29:06,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3532 states to 3532 states and 5063 transitions. [2022-11-23 14:29:06,538 INFO L78 Accepts]: Start accepts. Automaton has 3532 states and 5063 transitions. Word has length 35 [2022-11-23 14:29:06,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:29:06,540 INFO L495 AbstractCegarLoop]: Abstraction has 3532 states and 5063 transitions. [2022-11-23 14:29:06,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 14:29:06,541 INFO L276 IsEmpty]: Start isEmpty. Operand 3532 states and 5063 transitions. [2022-11-23 14:29:06,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-23 14:29:06,544 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:29:06,544 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-23 14:29:06,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:29:06,545 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_for_read_sectionErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:29:06,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:29:06,545 INFO L85 PathProgramCache]: Analyzing trace with hash 349814328, now seen corresponding path program 1 times [2022-11-23 14:29:06,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:29:06,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852568250] [2022-11-23 14:29:06,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:29:06,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:29:06,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:29:07,216 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 14:29:07,216 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:29:07,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852568250] [2022-11-23 14:29:07,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852568250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:29:07,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:29:07,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:29:07,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770330053] [2022-11-23 14:29:07,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:29:07,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:29:07,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:29:07,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:29:07,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:29:07,223 INFO L87 Difference]: Start difference. First operand 3532 states and 5063 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 14:29:09,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:29:16,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:29:16,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:29:16,477 INFO L93 Difference]: Finished difference Result 3534 states and 5066 transitions. [2022-11-23 14:29:16,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:29:16,479 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 37 [2022-11-23 14:29:16,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:29:16,510 INFO L225 Difference]: With dead ends: 3534 [2022-11-23 14:29:16,511 INFO L226 Difference]: Without dead ends: 3532 [2022-11-23 14:29:16,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:29:16,515 INFO L413 NwaCegarLoop]: 4585 mSDtfsCounter, 5046 mSDsluCounter, 4580 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5053 SdHoareTripleChecker+Valid, 9165 SdHoareTripleChecker+Invalid, 945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:29:16,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5053 Valid, 9165 Invalid, 945 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 943 Invalid, 2 Unknown, 0 Unchecked, 8.7s Time] [2022-11-23 14:29:16,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3532 states. [2022-11-23 14:29:16,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3532 to 3530. [2022-11-23 14:29:16,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3530 states, 2018 states have (on average 1.2829534192269574) internal successors, (2589), 2092 states have internal predecessors, (2589), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2022-11-23 14:29:16,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3530 states to 3530 states and 5061 transitions. [2022-11-23 14:29:16,786 INFO L78 Accepts]: Start accepts. Automaton has 3530 states and 5061 transitions. Word has length 37 [2022-11-23 14:29:16,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:29:16,787 INFO L495 AbstractCegarLoop]: Abstraction has 3530 states and 5061 transitions. [2022-11-23 14:29:16,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 14:29:16,787 INFO L276 IsEmpty]: Start isEmpty. Operand 3530 states and 5061 transitions. [2022-11-23 14:29:16,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-23 14:29:16,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:29:16,790 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-23 14:29:16,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:29:16,790 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_for_read_sectionErr2ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:29:16,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:29:16,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1173807411, now seen corresponding path program 1 times [2022-11-23 14:29:16,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:29:16,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956016404] [2022-11-23 14:29:16,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:29:16,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:29:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:29:17,315 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 14:29:17,315 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:29:17,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956016404] [2022-11-23 14:29:17,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956016404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:29:17,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:29:17,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:29:17,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762168551] [2022-11-23 14:29:17,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:29:17,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:29:17,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:29:17,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:29:17,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:29:17,319 INFO L87 Difference]: Start difference. First operand 3530 states and 5061 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 14:29:24,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:29:25,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:29:25,893 INFO L93 Difference]: Finished difference Result 3530 states and 5061 transitions. [2022-11-23 14:29:25,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:29:25,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 39 [2022-11-23 14:29:25,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:29:25,923 INFO L225 Difference]: With dead ends: 3530 [2022-11-23 14:29:25,924 INFO L226 Difference]: Without dead ends: 3528 [2022-11-23 14:29:25,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:29:25,931 INFO L413 NwaCegarLoop]: 4583 mSDtfsCounter, 5042 mSDsluCounter, 4580 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5045 SdHoareTripleChecker+Valid, 9163 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:29:25,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5045 Valid, 9163 Invalid, 948 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 948 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2022-11-23 14:29:25,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3528 states. [2022-11-23 14:29:26,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3528 to 3528. [2022-11-23 14:29:26,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3528 states, 2017 states have (on average 1.282597917699554) internal successors, (2587), 2090 states have internal predecessors, (2587), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2022-11-23 14:29:26,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3528 states to 3528 states and 5059 transitions. [2022-11-23 14:29:26,352 INFO L78 Accepts]: Start accepts. Automaton has 3528 states and 5059 transitions. Word has length 39 [2022-11-23 14:29:26,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:29:26,353 INFO L495 AbstractCegarLoop]: Abstraction has 3528 states and 5059 transitions. [2022-11-23 14:29:26,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 14:29:26,353 INFO L276 IsEmpty]: Start isEmpty. Operand 3528 states and 5059 transitions. [2022-11-23 14:29:26,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-23 14:29:26,365 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:29:26,365 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-23 14:29:26,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:29:26,366 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_for_read_sectionErr3ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:29:26,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:29:26,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1537924703, now seen corresponding path program 1 times [2022-11-23 14:29:26,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:29:26,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758999757] [2022-11-23 14:29:26,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:29:26,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:29:26,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:29:26,948 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 14:29:26,949 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:29:26,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758999757] [2022-11-23 14:29:26,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758999757] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:29:26,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:29:26,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:29:26,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215200507] [2022-11-23 14:29:26,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:29:26,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:29:26,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:29:26,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:29:26,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:29:26,952 INFO L87 Difference]: Start difference. First operand 3528 states and 5059 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, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 14:29:33,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:29:33,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:29:33,997 INFO L93 Difference]: Finished difference Result 3530 states and 5062 transitions. [2022-11-23 14:29:33,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:29:33,998 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, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 41 [2022-11-23 14:29:33,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:29:34,026 INFO L225 Difference]: With dead ends: 3530 [2022-11-23 14:29:34,026 INFO L226 Difference]: Without dead ends: 3528 [2022-11-23 14:29:34,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:29:34,031 INFO L413 NwaCegarLoop]: 4581 mSDtfsCounter, 5033 mSDsluCounter, 4582 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5038 SdHoareTripleChecker+Valid, 9163 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:29:34,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5038 Valid, 9163 Invalid, 948 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-11-23 14:29:34,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3528 states. [2022-11-23 14:29:34,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3528 to 3526. [2022-11-23 14:29:34,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3526 states, 2016 states have (on average 1.2822420634920635) internal successors, (2585), 2088 states have internal predecessors, (2585), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2022-11-23 14:29:34,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3526 states to 3526 states and 5057 transitions. [2022-11-23 14:29:34,356 INFO L78 Accepts]: Start accepts. Automaton has 3526 states and 5057 transitions. Word has length 41 [2022-11-23 14:29:34,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:29:34,358 INFO L495 AbstractCegarLoop]: Abstraction has 3526 states and 5057 transitions. [2022-11-23 14:29:34,359 INFO L496 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, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 14:29:34,359 INFO L276 IsEmpty]: Start isEmpty. Operand 3526 states and 5057 transitions. [2022-11-23 14:29:34,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-23 14:29:34,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:29:34,366 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-23 14:29:34,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:29:34,366 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:29:34,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:29:34,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1578421416, now seen corresponding path program 1 times [2022-11-23 14:29:34,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:29:34,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790778544] [2022-11-23 14:29:34,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:29:34,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:29:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:29:34,812 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 14:29:34,812 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:29:34,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790778544] [2022-11-23 14:29:34,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790778544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:29:34,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:29:34,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:29:34,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877197494] [2022-11-23 14:29:34,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:29:34,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:29:34,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:29:34,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:29:34,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:29:34,816 INFO L87 Difference]: Start difference. First operand 3526 states and 5057 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-23 14:29:37,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:29:41,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:29:41,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:29:41,953 INFO L93 Difference]: Finished difference Result 3528 states and 5060 transitions. [2022-11-23 14:29:41,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:29:41,953 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 49 [2022-11-23 14:29:41,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:29:41,981 INFO L225 Difference]: With dead ends: 3528 [2022-11-23 14:29:41,981 INFO L226 Difference]: Without dead ends: 3526 [2022-11-23 14:29:41,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:29:41,986 INFO L413 NwaCegarLoop]: 4579 mSDtfsCounter, 5035 mSDsluCounter, 4580 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5039 SdHoareTripleChecker+Valid, 9159 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:29:41,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5039 Valid, 9159 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-11-23 14:29:41,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3526 states. [2022-11-23 14:29:42,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3526 to 3524. [2022-11-23 14:29:42,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3524 states, 2015 states have (on average 1.2818858560794044) internal successors, (2583), 2086 states have internal predecessors, (2583), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2022-11-23 14:29:42,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3524 states to 3524 states and 5055 transitions. [2022-11-23 14:29:42,294 INFO L78 Accepts]: Start accepts. Automaton has 3524 states and 5055 transitions. Word has length 49 [2022-11-23 14:29:42,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:29:42,295 INFO L495 AbstractCegarLoop]: Abstraction has 3524 states and 5055 transitions. [2022-11-23 14:29:42,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-23 14:29:42,295 INFO L276 IsEmpty]: Start isEmpty. Operand 3524 states and 5055 transitions. [2022-11-23 14:29:42,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-23 14:29:42,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:29:42,297 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:29:42,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:29:42,298 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:29:42,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:29:42,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1724294130, now seen corresponding path program 1 times [2022-11-23 14:29:42,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:29:42,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748601458] [2022-11-23 14:29:42,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:29:42,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:29:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:29:42,727 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 14:29:42,727 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:29:42,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748601458] [2022-11-23 14:29:42,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748601458] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:29:42,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:29:42,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:29:42,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241130782] [2022-11-23 14:29:42,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:29:42,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:29:42,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:29:42,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:29:42,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:29:42,730 INFO L87 Difference]: Start difference. First operand 3524 states and 5055 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-23 14:29:49,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:29:49,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:29:49,857 INFO L93 Difference]: Finished difference Result 3524 states and 5055 transitions. [2022-11-23 14:29:49,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:29:49,858 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (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 54 [2022-11-23 14:29:49,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:29:49,893 INFO L225 Difference]: With dead ends: 3524 [2022-11-23 14:29:49,893 INFO L226 Difference]: Without dead ends: 3522 [2022-11-23 14:29:49,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:29:49,899 INFO L413 NwaCegarLoop]: 4577 mSDtfsCounter, 5033 mSDsluCounter, 4577 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5035 SdHoareTripleChecker+Valid, 9154 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:29:49,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5035 Valid, 9154 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 948 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-11-23 14:29:49,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3522 states. [2022-11-23 14:29:50,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3522 to 3522. [2022-11-23 14:29:50,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3522 states, 2014 states have (on average 1.2815292949354518) internal successors, (2581), 2084 states have internal predecessors, (2581), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2022-11-23 14:29:50,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3522 states to 3522 states and 5053 transitions. [2022-11-23 14:29:50,371 INFO L78 Accepts]: Start accepts. Automaton has 3522 states and 5053 transitions. Word has length 54 [2022-11-23 14:29:50,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:29:50,371 INFO L495 AbstractCegarLoop]: Abstraction has 3522 states and 5053 transitions. [2022-11-23 14:29:50,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-23 14:29:50,372 INFO L276 IsEmpty]: Start isEmpty. Operand 3522 states and 5053 transitions. [2022-11-23 14:29:50,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-23 14:29:50,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:29:50,374 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:29:50,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 14:29:50,375 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:29:50,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:29:50,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1787005869, now seen corresponding path program 1 times [2022-11-23 14:29:50,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:29:50,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379135114] [2022-11-23 14:29:50,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:29:50,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:29:50,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:29:50,844 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 14:29:50,844 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:29:50,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379135114] [2022-11-23 14:29:50,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379135114] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:29:50,845 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:29:50,845 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:29:50,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771288445] [2022-11-23 14:29:50,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:29:50,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:29:50,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:29:50,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:29:50,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:29:50,849 INFO L87 Difference]: Start difference. First operand 3522 states and 5053 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 14:29:53,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:29:57,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:29:57,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:29:57,806 INFO L93 Difference]: Finished difference Result 3524 states and 5056 transitions. [2022-11-23 14:29:57,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:29:57,807 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (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 59 [2022-11-23 14:29:57,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:29:57,832 INFO L225 Difference]: With dead ends: 3524 [2022-11-23 14:29:57,832 INFO L226 Difference]: Without dead ends: 3522 [2022-11-23 14:29:57,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:29:57,837 INFO L413 NwaCegarLoop]: 4575 mSDtfsCounter, 5029 mSDsluCounter, 4576 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5033 SdHoareTripleChecker+Valid, 9151 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:29:57,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5033 Valid, 9151 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-11-23 14:29:57,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3522 states. [2022-11-23 14:29:58,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3522 to 3520. [2022-11-23 14:29:58,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3520 states, 2013 states have (on average 1.2811723795330352) internal successors, (2579), 2082 states have internal predecessors, (2579), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2022-11-23 14:29:58,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3520 states to 3520 states and 5051 transitions. [2022-11-23 14:29:58,173 INFO L78 Accepts]: Start accepts. Automaton has 3520 states and 5051 transitions. Word has length 59 [2022-11-23 14:29:58,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:29:58,173 INFO L495 AbstractCegarLoop]: Abstraction has 3520 states and 5051 transitions. [2022-11-23 14:29:58,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 14:29:58,174 INFO L276 IsEmpty]: Start isEmpty. Operand 3520 states and 5051 transitions. [2022-11-23 14:29:58,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-23 14:29:58,176 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:29:58,176 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:29:58,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 14:29:58,177 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:29:58,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:29:58,177 INFO L85 PathProgramCache]: Analyzing trace with hash -2124060192, now seen corresponding path program 1 times [2022-11-23 14:29:58,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:29:58,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163610239] [2022-11-23 14:29:58,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:29:58,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:29:58,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:29:58,718 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 14:29:58,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:29:58,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163610239] [2022-11-23 14:29:58,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163610239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:29:58,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:29:58,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:29:58,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421255796] [2022-11-23 14:29:58,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:29:58,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:29:58,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:29:58,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:29:58,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:29:58,722 INFO L87 Difference]: Start difference. First operand 3520 states and 5051 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 14:30:04,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:30:04,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:30:04,821 INFO L93 Difference]: Finished difference Result 3522 states and 5054 transitions. [2022-11-23 14:30:04,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:30:04,822 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (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 64 [2022-11-23 14:30:04,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:30:04,848 INFO L225 Difference]: With dead ends: 3522 [2022-11-23 14:30:04,848 INFO L226 Difference]: Without dead ends: 3520 [2022-11-23 14:30:04,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:30:04,853 INFO L413 NwaCegarLoop]: 4573 mSDtfsCounter, 5026 mSDsluCounter, 4574 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5030 SdHoareTripleChecker+Valid, 9147 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:30:04,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5030 Valid, 9147 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-11-23 14:30:04,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3520 states. [2022-11-23 14:30:05,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3520 to 3518. [2022-11-23 14:30:05,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3518 states, 2012 states have (on average 1.2808151093439364) internal successors, (2577), 2080 states have internal predecessors, (2577), 1237 states have call successors, (1237), 244 states have call predecessors, (1237), 243 states have return successors, (1235), 1221 states have call predecessors, (1235), 1235 states have call successors, (1235) [2022-11-23 14:30:05,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3518 states to 3518 states and 5049 transitions. [2022-11-23 14:30:05,215 INFO L78 Accepts]: Start accepts. Automaton has 3518 states and 5049 transitions. Word has length 64 [2022-11-23 14:30:05,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:30:05,216 INFO L495 AbstractCegarLoop]: Abstraction has 3518 states and 5049 transitions. [2022-11-23 14:30:05,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-23 14:30:05,216 INFO L276 IsEmpty]: Start isEmpty. Operand 3518 states and 5049 transitions. [2022-11-23 14:30:05,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-23 14:30:05,218 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:30:05,218 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:30:05,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 14:30:05,219 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:30:05,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:30:05,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1186259556, now seen corresponding path program 1 times [2022-11-23 14:30:05,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:30:05,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999811505] [2022-11-23 14:30:05,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:30:05,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:30:05,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:30:06,386 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-23 14:30:06,387 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:30:06,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999811505] [2022-11-23 14:30:06,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999811505] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:30:06,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:30:06,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:30:06,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260334069] [2022-11-23 14:30:06,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:30:06,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:30:06,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:30:06,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:30:06,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:30:06,391 INFO L87 Difference]: Start difference. First operand 3518 states and 5049 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 14:30:17,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:30:17,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:30:17,576 INFO L93 Difference]: Finished difference Result 6233 states and 9147 transitions. [2022-11-23 14:30:17,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:30:17,577 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 67 [2022-11-23 14:30:17,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:30:17,634 INFO L225 Difference]: With dead ends: 6233 [2022-11-23 14:30:17,635 INFO L226 Difference]: Without dead ends: 6231 [2022-11-23 14:30:17,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:30:17,644 INFO L413 NwaCegarLoop]: 6074 mSDtfsCounter, 3959 mSDsluCounter, 16829 mSDsCounter, 0 mSdLazyCounter, 2125 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3965 SdHoareTripleChecker+Valid, 22903 SdHoareTripleChecker+Invalid, 2129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2125 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:30:17,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3965 Valid, 22903 Invalid, 2129 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2125 Invalid, 1 Unknown, 0 Unchecked, 10.4s Time] [2022-11-23 14:30:17,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6231 states. [2022-11-23 14:30:18,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6231 to 6054. [2022-11-23 14:30:18,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6054 states, 3567 states have (on average 1.2946453602467058) internal successors, (4618), 3665 states have internal predecessors, (4618), 2048 states have call successors, (2048), 417 states have call predecessors, (2048), 413 states have return successors, (2293), 2024 states have call predecessors, (2293), 2046 states have call successors, (2293) [2022-11-23 14:30:18,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6054 states to 6054 states and 8959 transitions. [2022-11-23 14:30:18,461 INFO L78 Accepts]: Start accepts. Automaton has 6054 states and 8959 transitions. Word has length 67 [2022-11-23 14:30:18,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:30:18,463 INFO L495 AbstractCegarLoop]: Abstraction has 6054 states and 8959 transitions. [2022-11-23 14:30:18,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 14:30:18,463 INFO L276 IsEmpty]: Start isEmpty. Operand 6054 states and 8959 transitions. [2022-11-23 14:30:18,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-23 14:30:18,466 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:30:18,466 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:30:18,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 14:30:18,467 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:30:18,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:30:18,474 INFO L85 PathProgramCache]: Analyzing trace with hash -33553170, now seen corresponding path program 1 times [2022-11-23 14:30:18,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:30:18,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376230335] [2022-11-23 14:30:18,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:30:18,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:30:18,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:30:18,939 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 14:30:18,939 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:30:18,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376230335] [2022-11-23 14:30:18,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376230335] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:30:18,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:30:18,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:30:18,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028768432] [2022-11-23 14:30:18,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:30:18,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:30:18,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:30:18,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:30:18,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:30:18,943 INFO L87 Difference]: Start difference. First operand 6054 states and 8959 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 14:30:25,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:30:25,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:30:25,931 INFO L93 Difference]: Finished difference Result 6056 states and 8962 transitions. [2022-11-23 14:30:25,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:30:25,932 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (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 69 [2022-11-23 14:30:25,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:30:25,971 INFO L225 Difference]: With dead ends: 6056 [2022-11-23 14:30:25,971 INFO L226 Difference]: Without dead ends: 6054 [2022-11-23 14:30:25,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:30:25,978 INFO L413 NwaCegarLoop]: 4571 mSDtfsCounter, 5023 mSDsluCounter, 4572 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5027 SdHoareTripleChecker+Valid, 9143 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:30:25,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5027 Valid, 9143 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-11-23 14:30:25,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6054 states. [2022-11-23 14:30:26,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6054 to 6054. [2022-11-23 14:30:26,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6054 states, 3567 states have (on average 1.2943650126156434) internal successors, (4617), 3665 states have internal predecessors, (4617), 2048 states have call successors, (2048), 417 states have call predecessors, (2048), 414 states have return successors, (2295), 2024 states have call predecessors, (2295), 2046 states have call successors, (2295) [2022-11-23 14:30:26,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6054 states to 6054 states and 8960 transitions. [2022-11-23 14:30:26,810 INFO L78 Accepts]: Start accepts. Automaton has 6054 states and 8960 transitions. Word has length 69 [2022-11-23 14:30:26,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:30:26,811 INFO L495 AbstractCegarLoop]: Abstraction has 6054 states and 8960 transitions. [2022-11-23 14:30:26,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-23 14:30:26,811 INFO L276 IsEmpty]: Start isEmpty. Operand 6054 states and 8960 transitions. [2022-11-23 14:30:26,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-23 14:30:26,814 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:30:26,814 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:30:26,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 14:30:26,815 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:30:26,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:30:26,816 INFO L85 PathProgramCache]: Analyzing trace with hash -358992852, now seen corresponding path program 1 times [2022-11-23 14:30:26,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:30:26,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509043866] [2022-11-23 14:30:26,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:30:26,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:30:26,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:30:27,668 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-23 14:30:27,668 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:30:27,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509043866] [2022-11-23 14:30:27,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509043866] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:30:27,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:30:27,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:30:27,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070912754] [2022-11-23 14:30:27,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:30:27,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:30:27,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:30:27,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:30:27,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:30:27,671 INFO L87 Difference]: Start difference. First operand 6054 states and 8960 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 14:30:39,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:30:41,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:30:43,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:30:43,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:30:43,971 INFO L93 Difference]: Finished difference Result 6707 states and 9770 transitions. [2022-11-23 14:30:43,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:30:43,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 70 [2022-11-23 14:30:43,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:30:44,012 INFO L225 Difference]: With dead ends: 6707 [2022-11-23 14:30:44,012 INFO L226 Difference]: Without dead ends: 6705 [2022-11-23 14:30:44,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:30:44,019 INFO L413 NwaCegarLoop]: 5020 mSDtfsCounter, 4925 mSDsluCounter, 10742 mSDsCounter, 0 mSdLazyCounter, 1662 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4930 SdHoareTripleChecker+Valid, 15762 SdHoareTripleChecker+Invalid, 1667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1662 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:30:44,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4930 Valid, 15762 Invalid, 1667 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1662 Invalid, 2 Unknown, 0 Unchecked, 15.4s Time] [2022-11-23 14:30:44,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6705 states. [2022-11-23 14:30:44,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6705 to 6693. [2022-11-23 14:30:44,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6693 states, 3911 states have (on average 1.281513679365891) internal successors, (5012), 4015 states have internal predecessors, (5012), 2248 states have call successors, (2248), 514 states have call predecessors, (2248), 509 states have return successors, (2501), 2220 states have call predecessors, (2501), 2246 states have call successors, (2501) [2022-11-23 14:30:44,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6693 states to 6693 states and 9761 transitions. [2022-11-23 14:30:44,919 INFO L78 Accepts]: Start accepts. Automaton has 6693 states and 9761 transitions. Word has length 70 [2022-11-23 14:30:44,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:30:44,919 INFO L495 AbstractCegarLoop]: Abstraction has 6693 states and 9761 transitions. [2022-11-23 14:30:44,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 14:30:44,920 INFO L276 IsEmpty]: Start isEmpty. Operand 6693 states and 9761 transitions. [2022-11-23 14:30:44,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-23 14:30:44,922 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:30:44,922 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:30:44,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 14:30:44,923 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:30:44,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:30:44,923 INFO L85 PathProgramCache]: Analyzing trace with hash -687431419, now seen corresponding path program 1 times [2022-11-23 14:30:44,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:30:44,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032328901] [2022-11-23 14:30:44,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:30:44,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:30:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:30:45,921 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-23 14:30:45,921 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:30:45,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032328901] [2022-11-23 14:30:45,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032328901] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:30:45,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:30:45,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:30:45,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691192272] [2022-11-23 14:30:45,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:30:45,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:30:45,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:30:45,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:30:45,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:30:45,924 INFO L87 Difference]: Start difference. First operand 6693 states and 9761 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 14:30:49,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:30:57,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:30:57,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:30:57,688 INFO L93 Difference]: Finished difference Result 14359 states and 21211 transitions. [2022-11-23 14:30:57,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:30:57,688 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 67 [2022-11-23 14:30:57,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:30:57,738 INFO L225 Difference]: With dead ends: 14359 [2022-11-23 14:30:57,738 INFO L226 Difference]: Without dead ends: 7672 [2022-11-23 14:30:57,786 INFO L412 NwaCegarLoop]: 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 [2022-11-23 14:30:57,787 INFO L413 NwaCegarLoop]: 4812 mSDtfsCounter, 379 mSDsluCounter, 13940 mSDsCounter, 0 mSdLazyCounter, 2159 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 18752 SdHoareTripleChecker+Invalid, 2160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2159 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:30:57,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 18752 Invalid, 2160 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2159 Invalid, 1 Unknown, 0 Unchecked, 10.7s Time] [2022-11-23 14:30:57,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7672 states. [2022-11-23 14:30:58,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7672 to 6697. [2022-11-23 14:30:58,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6697 states, 3914 states have (on average 1.2812979049565663) internal successors, (5015), 4018 states have internal predecessors, (5015), 2248 states have call successors, (2248), 514 states have call predecessors, (2248), 510 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-11-23 14:30:58,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6697 states to 6697 states and 9782 transitions. [2022-11-23 14:30:58,752 INFO L78 Accepts]: Start accepts. Automaton has 6697 states and 9782 transitions. Word has length 67 [2022-11-23 14:30:58,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:30:58,753 INFO L495 AbstractCegarLoop]: Abstraction has 6697 states and 9782 transitions. [2022-11-23 14:30:58,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-23 14:30:58,753 INFO L276 IsEmpty]: Start isEmpty. Operand 6697 states and 9782 transitions. [2022-11-23 14:30:58,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-23 14:30:58,755 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:30:58,755 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:30:58,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-23 14:30:58,756 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:30:58,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:30:58,756 INFO L85 PathProgramCache]: Analyzing trace with hash -346473505, now seen corresponding path program 1 times [2022-11-23 14:30:58,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:30:58,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467151509] [2022-11-23 14:30:58,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:30:58,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:30:58,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:30:59,130 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 14:30:59,130 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:30:59,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467151509] [2022-11-23 14:30:59,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467151509] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:30:59,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:30:59,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:30:59,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585073460] [2022-11-23 14:30:59,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:30:59,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:30:59,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:30:59,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:30:59,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:30:59,134 INFO L87 Difference]: Start difference. First operand 6697 states and 9782 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 14:31:05,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:31:05,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:31:05,942 INFO L93 Difference]: Finished difference Result 6697 states and 9782 transitions. [2022-11-23 14:31:05,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:31:05,943 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (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 74 [2022-11-23 14:31:05,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:31:05,981 INFO L225 Difference]: With dead ends: 6697 [2022-11-23 14:31:05,982 INFO L226 Difference]: Without dead ends: 6695 [2022-11-23 14:31:05,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:31:05,989 INFO L413 NwaCegarLoop]: 4569 mSDtfsCounter, 5020 mSDsluCounter, 4570 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5024 SdHoareTripleChecker+Valid, 9139 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:31:05,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5024 Valid, 9139 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-11-23 14:31:06,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6695 states. [2022-11-23 14:31:06,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6695 to 6695. [2022-11-23 14:31:06,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6695 states, 3913 states have (on average 1.2811142346026068) internal successors, (5013), 4016 states have internal predecessors, (5013), 2248 states have call successors, (2248), 514 states have call predecessors, (2248), 510 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-11-23 14:31:06,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6695 states to 6695 states and 9780 transitions. [2022-11-23 14:31:06,801 INFO L78 Accepts]: Start accepts. Automaton has 6695 states and 9780 transitions. Word has length 74 [2022-11-23 14:31:06,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:31:06,801 INFO L495 AbstractCegarLoop]: Abstraction has 6695 states and 9780 transitions. [2022-11-23 14:31:06,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 14:31:06,802 INFO L276 IsEmpty]: Start isEmpty. Operand 6695 states and 9780 transitions. [2022-11-23 14:31:06,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-23 14:31:06,804 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:31:06,804 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:31:06,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-23 14:31:06,805 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:31:06,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:31:06,805 INFO L85 PathProgramCache]: Analyzing trace with hash -395623126, now seen corresponding path program 1 times [2022-11-23 14:31:06,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:31:06,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145938528] [2022-11-23 14:31:06,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:31:06,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:31:06,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:31:07,168 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 14:31:07,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:31:07,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145938528] [2022-11-23 14:31:07,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145938528] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:31:07,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:31:07,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:31:07,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28186638] [2022-11-23 14:31:07,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:31:07,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:31:07,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:31:07,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:31:07,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:31:07,171 INFO L87 Difference]: Start difference. First operand 6695 states and 9780 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:31:13,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:31:13,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:31:13,526 INFO L93 Difference]: Finished difference Result 6695 states and 9780 transitions. [2022-11-23 14:31:13,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:31:13,527 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (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 79 [2022-11-23 14:31:13,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:31:13,563 INFO L225 Difference]: With dead ends: 6695 [2022-11-23 14:31:13,563 INFO L226 Difference]: Without dead ends: 6693 [2022-11-23 14:31:13,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:31:13,570 INFO L413 NwaCegarLoop]: 4567 mSDtfsCounter, 5017 mSDsluCounter, 4568 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5021 SdHoareTripleChecker+Valid, 9135 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:31:13,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5021 Valid, 9135 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-11-23 14:31:13,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6693 states. [2022-11-23 14:31:14,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6693 to 6693. [2022-11-23 14:31:14,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6693 states, 3912 states have (on average 1.2809304703476483) internal successors, (5011), 4014 states have internal predecessors, (5011), 2248 states have call successors, (2248), 514 states have call predecessors, (2248), 510 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-11-23 14:31:14,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6693 states to 6693 states and 9778 transitions. [2022-11-23 14:31:14,578 INFO L78 Accepts]: Start accepts. Automaton has 6693 states and 9778 transitions. Word has length 79 [2022-11-23 14:31:14,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:31:14,579 INFO L495 AbstractCegarLoop]: Abstraction has 6693 states and 9778 transitions. [2022-11-23 14:31:14,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-23 14:31:14,580 INFO L276 IsEmpty]: Start isEmpty. Operand 6693 states and 9778 transitions. [2022-11-23 14:31:14,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-23 14:31:14,582 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:31:14,582 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:31:14,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-23 14:31:14,583 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:31:14,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:31:14,583 INFO L85 PathProgramCache]: Analyzing trace with hash 430009275, now seen corresponding path program 1 times [2022-11-23 14:31:14,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:31:14,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828510638] [2022-11-23 14:31:14,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:31:14,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:31:14,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:31:15,532 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-23 14:31:15,533 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:31:15,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828510638] [2022-11-23 14:31:15,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828510638] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:31:15,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:31:15,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 14:31:15,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159984417] [2022-11-23 14:31:15,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:31:15,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:31:15,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:31:15,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:31:15,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:31:15,535 INFO L87 Difference]: Start difference. First operand 6693 states and 9778 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 14:31:19,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:31:31,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:31:32,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:31:32,173 INFO L93 Difference]: Finished difference Result 6693 states and 9778 transitions. [2022-11-23 14:31:32,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:31:32,173 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 80 [2022-11-23 14:31:32,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:31:32,206 INFO L225 Difference]: With dead ends: 6693 [2022-11-23 14:31:32,206 INFO L226 Difference]: Without dead ends: 6691 [2022-11-23 14:31:32,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:31:32,212 INFO L413 NwaCegarLoop]: 4566 mSDtfsCounter, 5016 mSDsluCounter, 11219 mSDsCounter, 0 mSdLazyCounter, 4364 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5023 SdHoareTripleChecker+Valid, 15785 SdHoareTripleChecker+Invalid, 4365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4364 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:31:32,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5023 Valid, 15785 Invalid, 4365 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 4364 Invalid, 1 Unknown, 0 Unchecked, 15.5s Time] [2022-11-23 14:31:32,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6691 states. [2022-11-23 14:31:33,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6691 to 6691. [2022-11-23 14:31:33,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6691 states, 3911 states have (on average 1.28023523395551) internal successors, (5007), 4012 states have internal predecessors, (5007), 2248 states have call successors, (2248), 514 states have call predecessors, (2248), 510 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-11-23 14:31:33,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6691 states to 6691 states and 9774 transitions. [2022-11-23 14:31:33,282 INFO L78 Accepts]: Start accepts. Automaton has 6691 states and 9774 transitions. Word has length 80 [2022-11-23 14:31:33,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:31:33,283 INFO L495 AbstractCegarLoop]: Abstraction has 6691 states and 9774 transitions. [2022-11-23 14:31:33,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 14:31:33,283 INFO L276 IsEmpty]: Start isEmpty. Operand 6691 states and 9774 transitions. [2022-11-23 14:31:33,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-23 14:31:33,286 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:31:33,286 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:31:33,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-23 14:31:33,286 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:31:33,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:31:33,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1021873923, now seen corresponding path program 1 times [2022-11-23 14:31:33,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:31:33,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768458381] [2022-11-23 14:31:33,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:31:33,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:31:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:31:33,694 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 14:31:33,695 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:31:33,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768458381] [2022-11-23 14:31:33,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768458381] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:31:33,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:31:33,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:31:33,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448311191] [2022-11-23 14:31:33,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:31:33,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:31:33,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:31:33,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:31:33,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:31:33,698 INFO L87 Difference]: Start difference. First operand 6691 states and 9774 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 14:31:40,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:31:40,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:31:40,724 INFO L93 Difference]: Finished difference Result 6691 states and 9774 transitions. [2022-11-23 14:31:40,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:31:40,725 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 84 [2022-11-23 14:31:40,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:31:40,760 INFO L225 Difference]: With dead ends: 6691 [2022-11-23 14:31:40,760 INFO L226 Difference]: Without dead ends: 6689 [2022-11-23 14:31:40,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:31:40,766 INFO L413 NwaCegarLoop]: 4563 mSDtfsCounter, 5016 mSDsluCounter, 4560 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5020 SdHoareTripleChecker+Valid, 9123 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:31:40,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5020 Valid, 9123 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-11-23 14:31:40,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6689 states. [2022-11-23 14:31:41,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6689 to 6689. [2022-11-23 14:31:41,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6689 states, 3910 states have (on average 1.2800511508951407) internal successors, (5005), 4010 states have internal predecessors, (5005), 2248 states have call successors, (2248), 514 states have call predecessors, (2248), 510 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-11-23 14:31:41,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6689 states to 6689 states and 9772 transitions. [2022-11-23 14:31:41,852 INFO L78 Accepts]: Start accepts. Automaton has 6689 states and 9772 transitions. Word has length 84 [2022-11-23 14:31:41,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:31:41,853 INFO L495 AbstractCegarLoop]: Abstraction has 6689 states and 9772 transitions. [2022-11-23 14:31:41,853 INFO L496 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 14:31:41,853 INFO L276 IsEmpty]: Start isEmpty. Operand 6689 states and 9772 transitions. [2022-11-23 14:31:41,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-23 14:31:41,855 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:31:41,855 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:31:41,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-23 14:31:41,857 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:31:41,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:31:41,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1290491955, now seen corresponding path program 1 times [2022-11-23 14:31:41,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:31:41,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153511782] [2022-11-23 14:31:41,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:31:41,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:31:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:31:42,198 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-23 14:31:42,199 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:31:42,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153511782] [2022-11-23 14:31:42,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153511782] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:31:42,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:31:42,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:31:42,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098264204] [2022-11-23 14:31:42,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:31:42,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:31:42,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:31:42,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:31:42,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:31:42,202 INFO L87 Difference]: Start difference. First operand 6689 states and 9772 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 14:31:47,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:31:47,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:31:47,985 INFO L93 Difference]: Finished difference Result 13351 states and 19984 transitions. [2022-11-23 14:31:47,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:31:47,985 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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 83 [2022-11-23 14:31:47,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:31:48,022 INFO L225 Difference]: With dead ends: 13351 [2022-11-23 14:31:48,022 INFO L226 Difference]: Without dead ends: 6681 [2022-11-23 14:31:48,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:31:48,075 INFO L413 NwaCegarLoop]: 4558 mSDtfsCounter, 5002 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5002 SdHoareTripleChecker+Valid, 4558 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:31:48,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5002 Valid, 4558 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-23 14:31:48,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6681 states. [2022-11-23 14:31:49,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6681 to 6681. [2022-11-23 14:31:49,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6681 states, 3903 states have (on average 1.2790161414296695) internal successors, (4992), 4002 states have internal predecessors, (4992), 2248 states have call successors, (2248), 514 states have call predecessors, (2248), 510 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-11-23 14:31:49,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6681 states to 6681 states and 9759 transitions. [2022-11-23 14:31:49,246 INFO L78 Accepts]: Start accepts. Automaton has 6681 states and 9759 transitions. Word has length 83 [2022-11-23 14:31:49,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:31:49,247 INFO L495 AbstractCegarLoop]: Abstraction has 6681 states and 9759 transitions. [2022-11-23 14:31:49,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 14:31:49,248 INFO L276 IsEmpty]: Start isEmpty. Operand 6681 states and 9759 transitions. [2022-11-23 14:31:49,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-23 14:31:49,250 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:31:49,250 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:31:49,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-23 14:31:49,251 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:31:49,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:31:49,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1526381114, now seen corresponding path program 1 times [2022-11-23 14:31:49,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:31:49,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157833542] [2022-11-23 14:31:49,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:31:49,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:31:49,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:31:49,611 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 14:31:49,611 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:31:49,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157833542] [2022-11-23 14:31:49,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157833542] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:31:49,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:31:49,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:31:49,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032442021] [2022-11-23 14:31:49,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:31:49,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:31:49,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:31:49,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:31:49,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:31:49,614 INFO L87 Difference]: Start difference. First operand 6681 states and 9759 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 14:31:56,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:31:56,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:31:56,576 INFO L93 Difference]: Finished difference Result 6681 states and 9759 transitions. [2022-11-23 14:31:56,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:31:56,577 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (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 86 [2022-11-23 14:31:56,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:31:56,602 INFO L225 Difference]: With dead ends: 6681 [2022-11-23 14:31:56,602 INFO L226 Difference]: Without dead ends: 6679 [2022-11-23 14:31:56,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:31:56,607 INFO L413 NwaCegarLoop]: 4556 mSDtfsCounter, 5003 mSDsluCounter, 4557 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5007 SdHoareTripleChecker+Valid, 9113 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:31:56,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5007 Valid, 9113 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-11-23 14:31:56,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6679 states. [2022-11-23 14:31:57,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6679 to 6679. [2022-11-23 14:31:57,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6679 states, 3902 states have (on average 1.2788313685289594) internal successors, (4990), 4000 states have internal predecessors, (4990), 2248 states have call successors, (2248), 514 states have call predecessors, (2248), 510 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-11-23 14:31:57,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6679 states to 6679 states and 9757 transitions. [2022-11-23 14:31:57,564 INFO L78 Accepts]: Start accepts. Automaton has 6679 states and 9757 transitions. Word has length 86 [2022-11-23 14:31:57,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:31:57,565 INFO L495 AbstractCegarLoop]: Abstraction has 6679 states and 9757 transitions. [2022-11-23 14:31:57,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-23 14:31:57,565 INFO L276 IsEmpty]: Start isEmpty. Operand 6679 states and 9757 transitions. [2022-11-23 14:31:57,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-23 14:31:57,567 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:31:57,567 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:31:57,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-23 14:31:57,568 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:31:57,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:31:57,568 INFO L85 PathProgramCache]: Analyzing trace with hash 362178353, now seen corresponding path program 1 times [2022-11-23 14:31:57,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:31:57,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611317915] [2022-11-23 14:31:57,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:31:57,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:31:57,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:31:57,929 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 14:31:57,930 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:31:57,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611317915] [2022-11-23 14:31:57,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611317915] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:31:57,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:31:57,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:31:57,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750352491] [2022-11-23 14:31:57,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:31:57,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:31:57,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:31:57,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:31:57,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:31:57,934 INFO L87 Difference]: Start difference. First operand 6679 states and 9757 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-23 14:32:04,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:32:04,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:32:04,633 INFO L93 Difference]: Finished difference Result 6679 states and 9757 transitions. [2022-11-23 14:32:04,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:32:04,634 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (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 91 [2022-11-23 14:32:04,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:32:04,661 INFO L225 Difference]: With dead ends: 6679 [2022-11-23 14:32:04,661 INFO L226 Difference]: Without dead ends: 6677 [2022-11-23 14:32:04,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:32:04,666 INFO L413 NwaCegarLoop]: 4554 mSDtfsCounter, 5002 mSDsluCounter, 4555 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5006 SdHoareTripleChecker+Valid, 9109 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:32:04,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5006 Valid, 9109 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2022-11-23 14:32:04,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6677 states. [2022-11-23 14:32:05,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6677 to 6677. [2022-11-23 14:32:05,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6677 states, 3901 states have (on average 1.2786465008972059) internal successors, (4988), 3998 states have internal predecessors, (4988), 2248 states have call successors, (2248), 514 states have call predecessors, (2248), 510 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-11-23 14:32:05,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6677 states to 6677 states and 9755 transitions. [2022-11-23 14:32:05,506 INFO L78 Accepts]: Start accepts. Automaton has 6677 states and 9755 transitions. Word has length 91 [2022-11-23 14:32:05,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:32:05,506 INFO L495 AbstractCegarLoop]: Abstraction has 6677 states and 9755 transitions. [2022-11-23 14:32:05,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-23 14:32:05,507 INFO L276 IsEmpty]: Start isEmpty. Operand 6677 states and 9755 transitions. [2022-11-23 14:32:05,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-23 14:32:05,509 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:32:05,509 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:32:05,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-23 14:32:05,510 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:32:05,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:32:05,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1353353360, now seen corresponding path program 1 times [2022-11-23 14:32:05,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:32:05,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707467895] [2022-11-23 14:32:05,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:32:05,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:32:05,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:32:05,879 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 14:32:05,879 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:32:05,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707467895] [2022-11-23 14:32:05,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707467895] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:32:05,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:32:05,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:32:05,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195370112] [2022-11-23 14:32:05,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:32:05,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:32:05,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:32:05,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:32:05,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:32:05,882 INFO L87 Difference]: Start difference. First operand 6677 states and 9755 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 14:32:12,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:32:12,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:32:12,517 INFO L93 Difference]: Finished difference Result 6677 states and 9755 transitions. [2022-11-23 14:32:12,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:32:12,517 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (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 96 [2022-11-23 14:32:12,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:32:12,545 INFO L225 Difference]: With dead ends: 6677 [2022-11-23 14:32:12,545 INFO L226 Difference]: Without dead ends: 6675 [2022-11-23 14:32:12,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:32:12,551 INFO L413 NwaCegarLoop]: 4551 mSDtfsCounter, 4999 mSDsluCounter, 4552 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5003 SdHoareTripleChecker+Valid, 9103 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:32:12,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5003 Valid, 9103 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 949 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-11-23 14:32:12,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6675 states. [2022-11-23 14:32:13,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6675 to 6675. [2022-11-23 14:32:13,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6675 states, 3900 states have (on average 1.2784615384615385) internal successors, (4986), 3996 states have internal predecessors, (4986), 2248 states have call successors, (2248), 514 states have call predecessors, (2248), 510 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-11-23 14:32:13,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6675 states to 6675 states and 9753 transitions. [2022-11-23 14:32:13,380 INFO L78 Accepts]: Start accepts. Automaton has 6675 states and 9753 transitions. Word has length 96 [2022-11-23 14:32:13,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:32:13,381 INFO L495 AbstractCegarLoop]: Abstraction has 6675 states and 9753 transitions. [2022-11-23 14:32:13,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 14:32:13,381 INFO L276 IsEmpty]: Start isEmpty. Operand 6675 states and 9753 transitions. [2022-11-23 14:32:13,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-23 14:32:13,382 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:32:13,383 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:32:13,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-23 14:32:13,383 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:32:13,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:32:13,383 INFO L85 PathProgramCache]: Analyzing trace with hash 150115108, now seen corresponding path program 1 times [2022-11-23 14:32:13,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:32:13,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697203060] [2022-11-23 14:32:13,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:32:13,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:32:13,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:32:14,089 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-23 14:32:14,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:32:14,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697203060] [2022-11-23 14:32:14,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697203060] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:32:14,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:32:14,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:32:14,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056059403] [2022-11-23 14:32:14,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:32:14,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:32:14,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:32:14,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:32:14,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:32:14,093 INFO L87 Difference]: Start difference. First operand 6675 states and 9753 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 14:32:26,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:32:26,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:32:26,774 INFO L93 Difference]: Finished difference Result 6845 states and 9933 transitions. [2022-11-23 14:32:26,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:32:26,775 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 102 [2022-11-23 14:32:26,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:32:26,801 INFO L225 Difference]: With dead ends: 6845 [2022-11-23 14:32:26,802 INFO L226 Difference]: Without dead ends: 6843 [2022-11-23 14:32:26,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:32:26,808 INFO L413 NwaCegarLoop]: 7558 mSDtfsCounter, 5130 mSDsluCounter, 18670 mSDsCounter, 0 mSdLazyCounter, 2803 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5133 SdHoareTripleChecker+Valid, 26228 SdHoareTripleChecker+Invalid, 2804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2803 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:32:26,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5133 Valid, 26228 Invalid, 2804 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2803 Invalid, 1 Unknown, 0 Unchecked, 11.4s Time] [2022-11-23 14:32:26,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6843 states. [2022-11-23 14:32:27,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6843 to 6683. [2022-11-23 14:32:27,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6683 states, 3906 states have (on average 1.2780337941628264) internal successors, (4992), 4002 states have internal predecessors, (4992), 2248 states have call successors, (2248), 516 states have call predecessors, (2248), 512 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-11-23 14:32:27,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6683 states to 6683 states and 9759 transitions. [2022-11-23 14:32:27,631 INFO L78 Accepts]: Start accepts. Automaton has 6683 states and 9759 transitions. Word has length 102 [2022-11-23 14:32:27,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:32:27,632 INFO L495 AbstractCegarLoop]: Abstraction has 6683 states and 9759 transitions. [2022-11-23 14:32:27,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 14:32:27,633 INFO L276 IsEmpty]: Start isEmpty. Operand 6683 states and 9759 transitions. [2022-11-23 14:32:27,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-23 14:32:27,635 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:32:27,635 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:32:27,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-23 14:32:27,636 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:32:27,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:32:27,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1816690731, now seen corresponding path program 1 times [2022-11-23 14:32:27,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:32:27,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501715843] [2022-11-23 14:32:27,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:32:27,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:32:27,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:32:28,395 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-23 14:32:28,395 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:32:28,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501715843] [2022-11-23 14:32:28,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501715843] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:32:28,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:32:28,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:32:28,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645982157] [2022-11-23 14:32:28,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:32:28,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:32:28,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:32:28,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:32:28,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:32:28,399 INFO L87 Difference]: Start difference. First operand 6683 states and 9759 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 14:32:36,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:32:36,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:32:36,495 INFO L93 Difference]: Finished difference Result 6705 states and 9775 transitions. [2022-11-23 14:32:36,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 14:32:36,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 104 [2022-11-23 14:32:36,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:32:36,529 INFO L225 Difference]: With dead ends: 6705 [2022-11-23 14:32:36,530 INFO L226 Difference]: Without dead ends: 6703 [2022-11-23 14:32:36,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:32:36,536 INFO L413 NwaCegarLoop]: 4556 mSDtfsCounter, 4946 mSDsluCounter, 9162 mSDsCounter, 0 mSdLazyCounter, 1435 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4950 SdHoareTripleChecker+Valid, 13718 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1435 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:32:36,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4950 Valid, 13718 Invalid, 1438 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1435 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-11-23 14:32:36,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6703 states. [2022-11-23 14:32:37,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6703 to 6701. [2022-11-23 14:32:37,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6701 states, 3918 states have (on average 1.2771822358346094) internal successors, (5004), 4014 states have internal predecessors, (5004), 2248 states have call successors, (2248), 522 states have call predecessors, (2248), 518 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-11-23 14:32:37,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6701 states to 6701 states and 9771 transitions. [2022-11-23 14:32:37,464 INFO L78 Accepts]: Start accepts. Automaton has 6701 states and 9771 transitions. Word has length 104 [2022-11-23 14:32:37,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:32:37,464 INFO L495 AbstractCegarLoop]: Abstraction has 6701 states and 9771 transitions. [2022-11-23 14:32:37,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 14:32:37,465 INFO L276 IsEmpty]: Start isEmpty. Operand 6701 states and 9771 transitions. [2022-11-23 14:32:37,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-23 14:32:37,467 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:32:37,467 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:32:37,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-23 14:32:37,468 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:32:37,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:32:37,468 INFO L85 PathProgramCache]: Analyzing trace with hash 275721439, now seen corresponding path program 1 times [2022-11-23 14:32:37,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:32:37,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932971549] [2022-11-23 14:32:37,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:32:37,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:32:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:32:37,846 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 14:32:37,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:32:37,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932971549] [2022-11-23 14:32:37,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932971549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:32:37,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:32:37,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:32:37,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241692739] [2022-11-23 14:32:37,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:32:37,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:32:37,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:32:37,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:32:37,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:32:37,849 INFO L87 Difference]: Start difference. First operand 6701 states and 9771 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 14:32:45,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:32:45,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:32:45,388 INFO L93 Difference]: Finished difference Result 6701 states and 9771 transitions. [2022-11-23 14:32:45,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:32:45,388 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (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 101 [2022-11-23 14:32:45,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:32:45,410 INFO L225 Difference]: With dead ends: 6701 [2022-11-23 14:32:45,410 INFO L226 Difference]: Without dead ends: 6699 [2022-11-23 14:32:45,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:32:45,414 INFO L413 NwaCegarLoop]: 4550 mSDtfsCounter, 4996 mSDsluCounter, 4551 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5000 SdHoareTripleChecker+Valid, 9101 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:32:45,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5000 Valid, 9101 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-11-23 14:32:45,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6699 states. [2022-11-23 14:32:46,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6699 to 6699. [2022-11-23 14:32:46,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6699 states, 3917 states have (on average 1.2769977023232066) internal successors, (5002), 4012 states have internal predecessors, (5002), 2248 states have call successors, (2248), 522 states have call predecessors, (2248), 518 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-11-23 14:32:46,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6699 states to 6699 states and 9769 transitions. [2022-11-23 14:32:46,245 INFO L78 Accepts]: Start accepts. Automaton has 6699 states and 9769 transitions. Word has length 101 [2022-11-23 14:32:46,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:32:46,245 INFO L495 AbstractCegarLoop]: Abstraction has 6699 states and 9769 transitions. [2022-11-23 14:32:46,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 14:32:46,245 INFO L276 IsEmpty]: Start isEmpty. Operand 6699 states and 9769 transitions. [2022-11-23 14:32:46,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-23 14:32:46,247 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:32:46,247 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:32:46,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-23 14:32:46,248 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:32:46,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:32:46,248 INFO L85 PathProgramCache]: Analyzing trace with hash 19365162, now seen corresponding path program 1 times [2022-11-23 14:32:46,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:32:46,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781416037] [2022-11-23 14:32:46,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:32:46,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:32:46,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:32:46,866 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-11-23 14:32:46,866 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:32:46,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781416037] [2022-11-23 14:32:46,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781416037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:32:46,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:32:46,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:32:46,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608935608] [2022-11-23 14:32:46,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:32:46,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:32:46,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:32:46,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:32:46,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:32:46,870 INFO L87 Difference]: Start difference. First operand 6699 states and 9769 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 14:32:57,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:32:58,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:32:58,022 INFO L93 Difference]: Finished difference Result 6711 states and 9777 transitions. [2022-11-23 14:32:58,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:32:58,023 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 106 [2022-11-23 14:32:58,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:32:58,056 INFO L225 Difference]: With dead ends: 6711 [2022-11-23 14:32:58,056 INFO L226 Difference]: Without dead ends: 6709 [2022-11-23 14:32:58,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-23 14:32:58,061 INFO L413 NwaCegarLoop]: 5113 mSDtfsCounter, 792 mSDsluCounter, 14680 mSDsCounter, 0 mSdLazyCounter, 2139 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 19793 SdHoareTripleChecker+Invalid, 2140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2139 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:32:58,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 19793 Invalid, 2140 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2139 Invalid, 1 Unknown, 0 Unchecked, 10.0s Time] [2022-11-23 14:32:58,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6709 states. [2022-11-23 14:32:59,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6709 to 6703. [2022-11-23 14:32:59,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6703 states, 3920 states have (on average 1.276530612244898) internal successors, (5004), 4015 states have internal predecessors, (5004), 2248 states have call successors, (2248), 523 states have call predecessors, (2248), 519 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-11-23 14:32:59,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6703 states to 6703 states and 9771 transitions. [2022-11-23 14:32:59,066 INFO L78 Accepts]: Start accepts. Automaton has 6703 states and 9771 transitions. Word has length 106 [2022-11-23 14:32:59,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:32:59,067 INFO L495 AbstractCegarLoop]: Abstraction has 6703 states and 9771 transitions. [2022-11-23 14:32:59,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-23 14:32:59,067 INFO L276 IsEmpty]: Start isEmpty. Operand 6703 states and 9771 transitions. [2022-11-23 14:32:59,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-23 14:32:59,069 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:32:59,070 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:32:59,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-23 14:32:59,070 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:32:59,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:32:59,071 INFO L85 PathProgramCache]: Analyzing trace with hash 2110905678, now seen corresponding path program 1 times [2022-11-23 14:32:59,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:32:59,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565877522] [2022-11-23 14:32:59,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:32:59,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:32:59,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:32:59,415 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 14:32:59,416 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:32:59,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565877522] [2022-11-23 14:32:59,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565877522] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:32:59,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:32:59,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:32:59,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043504511] [2022-11-23 14:32:59,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:32:59,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:32:59,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:32:59,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:32:59,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:32:59,418 INFO L87 Difference]: Start difference. First operand 6703 states and 9771 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-23 14:33:06,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:33:06,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:33:06,231 INFO L93 Difference]: Finished difference Result 6703 states and 9771 transitions. [2022-11-23 14:33:06,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:33:06,232 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (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 106 [2022-11-23 14:33:06,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:33:06,254 INFO L225 Difference]: With dead ends: 6703 [2022-11-23 14:33:06,254 INFO L226 Difference]: Without dead ends: 6701 [2022-11-23 14:33:06,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:33:06,258 INFO L413 NwaCegarLoop]: 4548 mSDtfsCounter, 4993 mSDsluCounter, 4549 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4997 SdHoareTripleChecker+Valid, 9097 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:33:06,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4997 Valid, 9097 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-11-23 14:33:06,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6701 states. [2022-11-23 14:33:07,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6701 to 6701. [2022-11-23 14:33:07,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6701 states, 3919 states have (on average 1.2763460066343455) internal successors, (5002), 4013 states have internal predecessors, (5002), 2248 states have call successors, (2248), 523 states have call predecessors, (2248), 519 states have return successors, (2519), 2221 states have call predecessors, (2519), 2246 states have call successors, (2519) [2022-11-23 14:33:07,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6701 states to 6701 states and 9769 transitions. [2022-11-23 14:33:07,084 INFO L78 Accepts]: Start accepts. Automaton has 6701 states and 9769 transitions. Word has length 106 [2022-11-23 14:33:07,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:33:07,084 INFO L495 AbstractCegarLoop]: Abstraction has 6701 states and 9769 transitions. [2022-11-23 14:33:07,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-23 14:33:07,084 INFO L276 IsEmpty]: Start isEmpty. Operand 6701 states and 9769 transitions. [2022-11-23 14:33:07,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-23 14:33:07,087 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:33:07,087 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:33:07,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-23 14:33:07,088 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_net_sock__double_releaseErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:33:07,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:33:07,088 INFO L85 PathProgramCache]: Analyzing trace with hash -26294806, now seen corresponding path program 1 times [2022-11-23 14:33:07,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:33:07,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740458390] [2022-11-23 14:33:07,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:33:07,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:33:07,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:33:08,103 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-23 14:33:08,104 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:33:08,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740458390] [2022-11-23 14:33:08,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740458390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:33:08,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:33:08,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 14:33:08,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018810392] [2022-11-23 14:33:08,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:33:08,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:33:08,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:33:08,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:33:08,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:33:08,106 INFO L87 Difference]: Start difference. First operand 6701 states and 9769 transitions. Second operand has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-23 14:33:49,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:33:51,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:33:53,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:33:55,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:34:00,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:34:00,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:34:00,684 INFO L93 Difference]: Finished difference Result 13281 states and 19384 transitions. [2022-11-23 14:34:00,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 14:34:00,685 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 111 [2022-11-23 14:34:00,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:34:00,731 INFO L225 Difference]: With dead ends: 13281 [2022-11-23 14:34:00,731 INFO L226 Difference]: Without dead ends: 13279 [2022-11-23 14:34:00,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-11-23 14:34:00,737 INFO L413 NwaCegarLoop]: 4792 mSDtfsCounter, 10503 mSDsluCounter, 10019 mSDsCounter, 0 mSdLazyCounter, 15128 mSolverCounterSat, 2719 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11463 SdHoareTripleChecker+Valid, 14811 SdHoareTripleChecker+Invalid, 17851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2719 IncrementalHoareTripleChecker+Valid, 15128 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:34:00,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11463 Valid, 14811 Invalid, 17851 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2719 Valid, 15128 Invalid, 4 Unknown, 0 Unchecked, 49.2s Time] [2022-11-23 14:34:00,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13279 states. [2022-11-23 14:34:02,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13279 to 13127. [2022-11-23 14:34:02,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13127 states, 7695 states have (on average 1.2794022092267707) internal successors, (9845), 7870 states have internal predecessors, (9845), 4415 states have call successors, (4415), 1014 states have call predecessors, (4415), 1002 states have return successors, (4941), 4355 states have call predecessors, (4941), 4413 states have call successors, (4941) [2022-11-23 14:34:02,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13127 states to 13127 states and 19201 transitions. [2022-11-23 14:34:02,410 INFO L78 Accepts]: Start accepts. Automaton has 13127 states and 19201 transitions. Word has length 111 [2022-11-23 14:34:02,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:34:02,411 INFO L495 AbstractCegarLoop]: Abstraction has 13127 states and 19201 transitions. [2022-11-23 14:34:02,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-23 14:34:02,411 INFO L276 IsEmpty]: Start isEmpty. Operand 13127 states and 19201 transitions. [2022-11-23 14:34:02,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-23 14:34:02,414 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:34:02,414 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:34:02,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-23 14:34:02,415 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:34:02,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:34:02,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1438277290, now seen corresponding path program 1 times [2022-11-23 14:34:02,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:34:02,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014498139] [2022-11-23 14:34:02,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:34:02,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:34:02,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:34:02,818 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 14:34:02,819 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:34:02,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014498139] [2022-11-23 14:34:02,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014498139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:34:02,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:34:02,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:34:02,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195771425] [2022-11-23 14:34:02,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:34:02,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:34:02,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:34:02,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:34:02,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:34:02,822 INFO L87 Difference]: Start difference. First operand 13127 states and 19201 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-23 14:34:10,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:34:10,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:34:10,153 INFO L93 Difference]: Finished difference Result 13127 states and 19201 transitions. [2022-11-23 14:34:10,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:34:10,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (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 111 [2022-11-23 14:34:10,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:34:10,198 INFO L225 Difference]: With dead ends: 13127 [2022-11-23 14:34:10,198 INFO L226 Difference]: Without dead ends: 13125 [2022-11-23 14:34:10,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:34:10,205 INFO L413 NwaCegarLoop]: 4546 mSDtfsCounter, 4990 mSDsluCounter, 4547 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4994 SdHoareTripleChecker+Valid, 9093 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:34:10,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4994 Valid, 9093 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-23 14:34:10,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13125 states. [2022-11-23 14:34:11,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13125 to 13125. [2022-11-23 14:34:11,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13125 states, 7694 states have (on average 1.279308552118534) internal successors, (9843), 7868 states have internal predecessors, (9843), 4415 states have call successors, (4415), 1014 states have call predecessors, (4415), 1002 states have return successors, (4941), 4355 states have call predecessors, (4941), 4413 states have call successors, (4941) [2022-11-23 14:34:11,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13125 states to 13125 states and 19199 transitions. [2022-11-23 14:34:11,751 INFO L78 Accepts]: Start accepts. Automaton has 13125 states and 19199 transitions. Word has length 111 [2022-11-23 14:34:11,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:34:11,751 INFO L495 AbstractCegarLoop]: Abstraction has 13125 states and 19199 transitions. [2022-11-23 14:34:11,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-23 14:34:11,752 INFO L276 IsEmpty]: Start isEmpty. Operand 13125 states and 19199 transitions. [2022-11-23 14:34:11,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-23 14:34:11,753 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:34:11,753 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:34:11,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-23 14:34:11,754 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:34:11,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:34:11,755 INFO L85 PathProgramCache]: Analyzing trace with hash -629582893, now seen corresponding path program 1 times [2022-11-23 14:34:11,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:34:11,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564197111] [2022-11-23 14:34:11,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:34:11,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:34:11,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:34:12,126 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 14:34:12,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:34:12,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564197111] [2022-11-23 14:34:12,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564197111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:34:12,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:34:12,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:34:12,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967569372] [2022-11-23 14:34:12,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:34:12,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:34:12,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:34:12,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:34:12,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:34:12,134 INFO L87 Difference]: Start difference. First operand 13125 states and 19199 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-23 14:34:19,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:34:19,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:34:19,806 INFO L93 Difference]: Finished difference Result 13125 states and 19199 transitions. [2022-11-23 14:34:19,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:34:19,807 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (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 116 [2022-11-23 14:34:19,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:34:19,848 INFO L225 Difference]: With dead ends: 13125 [2022-11-23 14:34:19,849 INFO L226 Difference]: Without dead ends: 13123 [2022-11-23 14:34:19,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:34:19,854 INFO L413 NwaCegarLoop]: 4544 mSDtfsCounter, 4987 mSDsluCounter, 4545 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4991 SdHoareTripleChecker+Valid, 9089 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:34:19,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4991 Valid, 9089 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-11-23 14:34:19,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13123 states. [2022-11-23 14:34:21,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13123 to 13123. [2022-11-23 14:34:21,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13123 states, 7693 states have (on average 1.2792148706616404) internal successors, (9841), 7866 states have internal predecessors, (9841), 4415 states have call successors, (4415), 1014 states have call predecessors, (4415), 1002 states have return successors, (4941), 4355 states have call predecessors, (4941), 4413 states have call successors, (4941) [2022-11-23 14:34:21,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13123 states to 13123 states and 19197 transitions. [2022-11-23 14:34:21,492 INFO L78 Accepts]: Start accepts. Automaton has 13123 states and 19197 transitions. Word has length 116 [2022-11-23 14:34:21,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:34:21,492 INFO L495 AbstractCegarLoop]: Abstraction has 13123 states and 19197 transitions. [2022-11-23 14:34:21,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-23 14:34:21,492 INFO L276 IsEmpty]: Start isEmpty. Operand 13123 states and 19197 transitions. [2022-11-23 14:34:21,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-23 14:34:21,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:34:21,494 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:34:21,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-23 14:34:21,495 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:34:21,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:34:21,495 INFO L85 PathProgramCache]: Analyzing trace with hash 701075001, now seen corresponding path program 1 times [2022-11-23 14:34:21,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:34:21,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059764479] [2022-11-23 14:34:21,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:34:21,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:34:21,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:34:22,190 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-11-23 14:34:22,191 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:34:22,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059764479] [2022-11-23 14:34:22,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059764479] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:34:22,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:34:22,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:34:22,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943902708] [2022-11-23 14:34:22,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:34:22,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:34:22,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:34:22,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:34:22,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:34:22,194 INFO L87 Difference]: Start difference. First operand 13123 states and 19197 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-23 14:34:30,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:34:33,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:34:33,920 INFO L93 Difference]: Finished difference Result 25384 states and 37228 transitions. [2022-11-23 14:34:33,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:34:33,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 142 [2022-11-23 14:34:33,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:34:34,020 INFO L225 Difference]: With dead ends: 25384 [2022-11-23 14:34:34,020 INFO L226 Difference]: Without dead ends: 25382 [2022-11-23 14:34:34,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:34:34,029 INFO L413 NwaCegarLoop]: 5669 mSDtfsCounter, 4929 mSDsluCounter, 15563 mSDsCounter, 0 mSdLazyCounter, 1860 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4931 SdHoareTripleChecker+Valid, 21232 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1860 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:34:34,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4931 Valid, 21232 Invalid, 1864 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1860 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2022-11-23 14:34:34,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25382 states. [2022-11-23 14:34:37,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25382 to 25299. [2022-11-23 14:34:37,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25299 states, 14873 states have (on average 1.281113427015397) internal successors, (19054), 15193 states have internal predecessors, (19054), 8480 states have call successors, (8480), 1959 states have call predecessors, (8480), 1933 states have return successors, (9604), 8363 states have call predecessors, (9604), 8478 states have call successors, (9604) [2022-11-23 14:34:37,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25299 states to 25299 states and 37138 transitions. [2022-11-23 14:34:37,494 INFO L78 Accepts]: Start accepts. Automaton has 25299 states and 37138 transitions. Word has length 142 [2022-11-23 14:34:37,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:34:37,495 INFO L495 AbstractCegarLoop]: Abstraction has 25299 states and 37138 transitions. [2022-11-23 14:34:37,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-23 14:34:37,495 INFO L276 IsEmpty]: Start isEmpty. Operand 25299 states and 37138 transitions. [2022-11-23 14:34:37,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-23 14:34:37,497 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:34:37,497 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:34:37,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-23 14:34:37,497 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:34:37,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:34:37,498 INFO L85 PathProgramCache]: Analyzing trace with hash 621610883, now seen corresponding path program 1 times [2022-11-23 14:34:37,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:34:37,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712019945] [2022-11-23 14:34:37,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:34:37,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:34:37,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:34:38,098 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 14:34:38,098 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:34:38,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712019945] [2022-11-23 14:34:38,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712019945] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:34:38,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:34:38,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:34:38,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933110091] [2022-11-23 14:34:38,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:34:38,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:34:38,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:34:38,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:34:38,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:34:38,100 INFO L87 Difference]: Start difference. First operand 25299 states and 37138 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-23 14:34:45,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:34:47,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:34:47,318 INFO L93 Difference]: Finished difference Result 25299 states and 37138 transitions. [2022-11-23 14:34:47,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:34:47,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (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 121 [2022-11-23 14:34:47,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:34:47,423 INFO L225 Difference]: With dead ends: 25299 [2022-11-23 14:34:47,424 INFO L226 Difference]: Without dead ends: 25297 [2022-11-23 14:34:47,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:34:47,436 INFO L413 NwaCegarLoop]: 4542 mSDtfsCounter, 4984 mSDsluCounter, 4543 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4988 SdHoareTripleChecker+Valid, 9085 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:34:47,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4988 Valid, 9085 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-11-23 14:34:47,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25297 states. [2022-11-23 14:34:51,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25297 to 25297. [2022-11-23 14:34:51,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25297 states, 14872 states have (on average 1.2809978483055406) internal successors, (19051), 15191 states have internal predecessors, (19051), 8480 states have call successors, (8480), 1959 states have call predecessors, (8480), 1933 states have return successors, (9604), 8363 states have call predecessors, (9604), 8478 states have call successors, (9604) [2022-11-23 14:34:51,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25297 states to 25297 states and 37135 transitions. [2022-11-23 14:34:51,387 INFO L78 Accepts]: Start accepts. Automaton has 25297 states and 37135 transitions. Word has length 121 [2022-11-23 14:34:51,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:34:51,387 INFO L495 AbstractCegarLoop]: Abstraction has 25297 states and 37135 transitions. [2022-11-23 14:34:51,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-23 14:34:51,388 INFO L276 IsEmpty]: Start isEmpty. Operand 25297 states and 37135 transitions. [2022-11-23 14:34:51,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-23 14:34:51,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:34:51,391 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:34:51,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-23 14:34:51,392 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:34:51,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:34:51,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1715889705, now seen corresponding path program 1 times [2022-11-23 14:34:51,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:34:51,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449825242] [2022-11-23 14:34:51,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:34:51,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:34:51,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:34:51,756 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 14:34:51,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:34:51,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449825242] [2022-11-23 14:34:51,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449825242] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:34:51,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:34:51,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:34:51,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263303296] [2022-11-23 14:34:51,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:34:51,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:34:51,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:34:51,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:34:51,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:34:51,760 INFO L87 Difference]: Start difference. First operand 25297 states and 37135 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-23 14:34:58,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:35:00,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:35:00,508 INFO L93 Difference]: Finished difference Result 25297 states and 37135 transitions. [2022-11-23 14:35:00,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:35:00,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (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 126 [2022-11-23 14:35:00,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:35:00,587 INFO L225 Difference]: With dead ends: 25297 [2022-11-23 14:35:00,588 INFO L226 Difference]: Without dead ends: 25295 [2022-11-23 14:35:00,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:35:00,597 INFO L413 NwaCegarLoop]: 4540 mSDtfsCounter, 4981 mSDsluCounter, 4541 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4985 SdHoareTripleChecker+Valid, 9081 SdHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:35:00,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4985 Valid, 9081 Invalid, 948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 947 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-11-23 14:35:00,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25295 states. [2022-11-23 14:35:04,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25295 to 25295. [2022-11-23 14:35:04,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25295 states, 14871 states have (on average 1.2808822540515097) internal successors, (19048), 15189 states have internal predecessors, (19048), 8480 states have call successors, (8480), 1959 states have call predecessors, (8480), 1933 states have return successors, (9604), 8363 states have call predecessors, (9604), 8478 states have call successors, (9604) [2022-11-23 14:35:04,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25295 states to 25295 states and 37132 transitions. [2022-11-23 14:35:04,143 INFO L78 Accepts]: Start accepts. Automaton has 25295 states and 37132 transitions. Word has length 126 [2022-11-23 14:35:04,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:35:04,144 INFO L495 AbstractCegarLoop]: Abstraction has 25295 states and 37132 transitions. [2022-11-23 14:35:04,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-23 14:35:04,144 INFO L276 IsEmpty]: Start isEmpty. Operand 25295 states and 37132 transitions. [2022-11-23 14:35:04,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-23 14:35:04,146 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:35:04,146 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:35:04,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-23 14:35:04,147 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:35:04,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:35:04,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1103486936, now seen corresponding path program 1 times [2022-11-23 14:35:04,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:35:04,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095284220] [2022-11-23 14:35:04,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:35:04,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:35:04,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:35:04,416 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 14:35:04,417 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:35:04,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095284220] [2022-11-23 14:35:04,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095284220] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:35:04,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:35:04,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:35:04,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246823912] [2022-11-23 14:35:04,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:35:04,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:35:04,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:35:04,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:35:04,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:35:04,419 INFO L87 Difference]: Start difference. First operand 25295 states and 37132 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-23 14:35:14,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:35:16,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:35:16,435 INFO L93 Difference]: Finished difference Result 25551 states and 37403 transitions. [2022-11-23 14:35:16,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:35:16,435 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (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 131 [2022-11-23 14:35:16,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:35:16,514 INFO L225 Difference]: With dead ends: 25551 [2022-11-23 14:35:16,514 INFO L226 Difference]: Without dead ends: 25549 [2022-11-23 14:35:16,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:35:16,523 INFO L413 NwaCegarLoop]: 5749 mSDtfsCounter, 4902 mSDsluCounter, 10269 mSDsCounter, 0 mSdLazyCounter, 1421 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4906 SdHoareTripleChecker+Valid, 16018 SdHoareTripleChecker+Invalid, 1423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1421 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:35:16,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4906 Valid, 16018 Invalid, 1423 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1421 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2022-11-23 14:35:16,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25549 states. [2022-11-23 14:35:19,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25549 to 25505. [2022-11-23 14:35:19,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25505 states, 14992 states have (on average 1.2786152614727855) internal successors, (19169), 15311 states have internal predecessors, (19169), 8533 states have call successors, (8533), 1995 states have call predecessors, (8533), 1969 states have return successors, (9657), 8415 states have call predecessors, (9657), 8531 states have call successors, (9657) [2022-11-23 14:35:19,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25505 states to 25505 states and 37359 transitions. [2022-11-23 14:35:19,860 INFO L78 Accepts]: Start accepts. Automaton has 25505 states and 37359 transitions. Word has length 131 [2022-11-23 14:35:19,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:35:19,861 INFO L495 AbstractCegarLoop]: Abstraction has 25505 states and 37359 transitions. [2022-11-23 14:35:19,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-23 14:35:19,861 INFO L276 IsEmpty]: Start isEmpty. Operand 25505 states and 37359 transitions. [2022-11-23 14:35:19,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-23 14:35:19,863 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:35:19,864 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:35:19,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-23 14:35:19,864 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 32 more)] === [2022-11-23 14:35:19,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:35:19,864 INFO L85 PathProgramCache]: Analyzing trace with hash -371125743, now seen corresponding path program 1 times [2022-11-23 14:35:19,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:35:19,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041701249] [2022-11-23 14:35:19,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:35:19,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:35:19,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:35:20,236 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-11-23 14:35:20,237 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:35:20,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041701249] [2022-11-23 14:35:20,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041701249] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:35:20,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:35:20,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 14:35:20,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363742421] [2022-11-23 14:35:20,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:35:20,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 14:35:20,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:35:20,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 14:35:20,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:35:20,239 INFO L87 Difference]: Start difference. First operand 25505 states and 37359 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23)