./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab44fea-dae6-47f9-af7a-a7af7fc4fdcb/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab44fea-dae6-47f9-af7a-a7af7fc4fdcb/bin/utaipan-G1rejxKTta/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab44fea-dae6-47f9-af7a-a7af7fc4fdcb/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab44fea-dae6-47f9-af7a-a7af7fc4fdcb/bin/utaipan-G1rejxKTta/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab44fea-dae6-47f9-af7a-a7af7fc4fdcb/bin/utaipan-G1rejxKTta/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab44fea-dae6-47f9-af7a-a7af7fc4fdcb/bin/utaipan-G1rejxKTta --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 d291badf6e321259e0b1b1625d2ed48867e61016cda7885a720272c3e12df877 --- 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-dbf71c6-m [2022-10-17 17:38:20,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:38:20,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:38:20,240 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:38:20,241 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:38:20,246 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:38:20,249 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:38:20,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:38:20,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:38:20,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:38:20,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:38:20,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:38:20,269 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:38:20,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:38:20,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:38:20,279 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:38:20,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:38:20,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:38:20,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:38:20,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:38:20,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:38:20,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:38:20,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:38:20,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:38:20,313 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:38:20,314 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:38:20,314 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:38:20,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:38:20,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:38:20,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:38:20,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:38:20,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:38:20,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:38:20,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:38:20,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:38:20,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:38:20,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:38:20,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:38:20,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:38:20,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:38:20,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:38:20,331 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab44fea-dae6-47f9-af7a-a7af7fc4fdcb/bin/utaipan-G1rejxKTta/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-10-17 17:38:20,380 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:38:20,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:38:20,381 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:38:20,382 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:38:20,383 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:38:20,383 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:38:20,383 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:38:20,384 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:38:20,384 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:38:20,384 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-10-17 17:38:20,385 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:38:20,385 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:38:20,386 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-10-17 17:38:20,386 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-10-17 17:38:20,386 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:38:20,386 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-10-17 17:38:20,387 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-10-17 17:38:20,387 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-10-17 17:38:20,388 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:38:20,388 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:38:20,388 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:38:20,388 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:38:20,389 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:38:20,389 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:38:20,389 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:38:20,389 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:38:20,390 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:38:20,391 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:38:20,391 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:38:20,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:38:20,392 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:38:20,392 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-10-17 17:38:20,393 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:38:20,393 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:38:20,393 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-10-17 17:38:20,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:38:20,394 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:38:20,394 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:38:20,394 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_9ab44fea-dae6-47f9-af7a-a7af7fc4fdcb/bin/utaipan-G1rejxKTta/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab44fea-dae6-47f9-af7a-a7af7fc4fdcb/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d291badf6e321259e0b1b1625d2ed48867e61016cda7885a720272c3e12df877 [2022-10-17 17:38:20,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:38:20,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:38:20,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:38:20,739 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:38:20,739 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:38:20,741 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab44fea-dae6-47f9-af7a-a7af7fc4fdcb/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i [2022-10-17 17:38:20,812 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab44fea-dae6-47f9-af7a-a7af7fc4fdcb/bin/utaipan-G1rejxKTta/data/727d4f720/584f6064465c4bdb90c49795bb2709bb/FLAG73faea9ce [2022-10-17 17:38:21,913 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:38:21,914 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab44fea-dae6-47f9-af7a-a7af7fc4fdcb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i [2022-10-17 17:38:21,973 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab44fea-dae6-47f9-af7a-a7af7fc4fdcb/bin/utaipan-G1rejxKTta/data/727d4f720/584f6064465c4bdb90c49795bb2709bb/FLAG73faea9ce [2022-10-17 17:38:22,200 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab44fea-dae6-47f9-af7a-a7af7fc4fdcb/bin/utaipan-G1rejxKTta/data/727d4f720/584f6064465c4bdb90c49795bb2709bb [2022-10-17 17:38:22,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:38:22,206 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:38:22,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:38:22,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:38:22,212 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:38:22,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:38:22" (1/1) ... [2022-10-17 17:38:22,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58a586e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:38:22, skipping insertion in model container [2022-10-17 17:38:22,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:38:22" (1/1) ... [2022-10-17 17:38:22,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:38:22,475 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:38:26,858 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab44fea-dae6-47f9-af7a-a7af7fc4fdcb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[462737,462750] [2022-10-17 17:38:26,860 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab44fea-dae6-47f9-af7a-a7af7fc4fdcb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[462906,462919] [2022-10-17 17:38:26,861 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab44fea-dae6-47f9-af7a-a7af7fc4fdcb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463073,463086] [2022-10-17 17:38:26,862 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab44fea-dae6-47f9-af7a-a7af7fc4fdcb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463241,463254] [2022-10-17 17:38:26,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:38:26,909 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:38:27,478 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab44fea-dae6-47f9-af7a-a7af7fc4fdcb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[462737,462750] [2022-10-17 17:38:27,480 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab44fea-dae6-47f9-af7a-a7af7fc4fdcb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[462906,462919] [2022-10-17 17:38:27,480 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab44fea-dae6-47f9-af7a-a7af7fc4fdcb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463073,463086] [2022-10-17 17:38:27,481 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab44fea-dae6-47f9-af7a-a7af7fc4fdcb/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463241,463254] [2022-10-17 17:38:27,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:38:27,723 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:38:27,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:38:27 WrapperNode [2022-10-17 17:38:27,724 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:38:27,725 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:38:27,725 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:38:27,725 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:38:27,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:38:27" (1/1) ... [2022-10-17 17:38:27,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:38:27" (1/1) ... [2022-10-17 17:38:28,078 INFO L138 Inliner]: procedures = 522, calls = 2018, calls flagged for inlining = 218, calls inlined = 177, statements flattened = 5279 [2022-10-17 17:38:28,079 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:38:28,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:38:28,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:38:28,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:38:28,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:38:27" (1/1) ... [2022-10-17 17:38:28,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:38:27" (1/1) ... [2022-10-17 17:38:28,133 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:38:27" (1/1) ... [2022-10-17 17:38:28,133 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:38:27" (1/1) ... [2022-10-17 17:38:28,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:38:27" (1/1) ... [2022-10-17 17:38:28,382 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:38:27" (1/1) ... [2022-10-17 17:38:28,420 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:38:27" (1/1) ... [2022-10-17 17:38:28,449 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:38:27" (1/1) ... [2022-10-17 17:38:28,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:38:28,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:38:28,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:38:28,491 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:38:28,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:38:27" (1/1) ... [2022-10-17 17:38:28,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:38:28,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab44fea-dae6-47f9-af7a-a7af7fc4fdcb/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:38:28,523 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab44fea-dae6-47f9-af7a-a7af7fc4fdcb/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 17:38:28,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ab44fea-dae6-47f9-af7a-a7af7fc4fdcb/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 17:38:28,564 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_get_ds_info [2022-10-17 17:38:28,564 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_get_ds_info [2022-10-17 17:38:28,564 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-10-17 17:38:28,564 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_commit_prepare [2022-10-17 17:38:28,565 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_commit_prepare [2022-10-17 17:38:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_prepare_ds [2022-10-17 17:38:28,565 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_prepare_ds [2022-10-17 17:38:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_reset_write [2022-10-17 17:38:28,565 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_reset_write [2022-10-17 17:38:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-10-17 17:38:28,566 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-10-17 17:38:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-10-17 17:38:28,566 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-10-17 17:38:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 17:38:28,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 17:38:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-10-17 17:38:28,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-10-17 17:38:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-10-17 17:38:28,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-10-17 17:38:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_init_commit [2022-10-17 17:38:28,567 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_init_commit [2022-10-17 17:38:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_init_decode_pages [2022-10-17 17:38:28,568 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_init_decode_pages [2022-10-17 17:38:28,568 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-10-17 17:38:28,568 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-10-17 17:38:28,568 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_free_lseg [2022-10-17 17:38:28,568 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_free_lseg [2022-10-17 17:38:28,568 INFO L130 BoogieDeclarations]: Found specification of procedure NFS_SERVER [2022-10-17 17:38:28,569 INFO L138 BoogieDeclarations]: Found implementation of procedure NFS_SERVER [2022-10-17 17:38:28,569 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_select_ds_fh [2022-10-17 17:38:28,569 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_select_ds_fh [2022-10-17 17:38:28,569 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-10-17 17:38:28,569 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-10-17 17:38:28,569 INFO L130 BoogieDeclarations]: Found specification of procedure FILELAYOUT_LSEG [2022-10-17 17:38:28,570 INFO L138 BoogieDeclarations]: Found implementation of procedure FILELAYOUT_LSEG [2022-10-17 17:38:28,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-10-17 17:38:28,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-10-17 17:38:28,570 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_pg_init_read [2022-10-17 17:38:28,570 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_pg_init_read [2022-10-17 17:38:28,570 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-10-17 17:38:28,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-10-17 17:38:28,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-10-17 17:38:28,571 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_calc_j_index [2022-10-17 17:38:28,571 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_calc_j_index [2022-10-17 17:38:28,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 17:38:28,571 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_count_stats [2022-10-17 17:38:28,572 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_count_stats [2022-10-17 17:38:28,572 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-17 17:38:28,572 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-17 17:38:28,572 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_get_lseg [2022-10-17 17:38:28,572 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_get_lseg [2022-10-17 17:38:28,572 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-10-17 17:38:28,573 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-10-17 17:38:28,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 17:38:28,573 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_pageio_reset_read_mds [2022-10-17 17:38:28,573 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_pageio_reset_read_mds [2022-10-17 17:38:28,573 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_recover_commit_reqs [2022-10-17 17:38:28,573 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_recover_commit_reqs [2022-10-17 17:38:28,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 17:38:28,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-10-17 17:38:28,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-10-17 17:38:28,574 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_pg_test [2022-10-17 17:38:28,574 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_pg_test [2022-10-17 17:38:28,574 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_pg_init_write [2022-10-17 17:38:28,574 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_pg_init_write [2022-10-17 17:38:28,575 INFO L130 BoogieDeclarations]: Found specification of procedure transfer_commit_list [2022-10-17 17:38:28,575 INFO L138 BoogieDeclarations]: Found implementation of procedure transfer_commit_list [2022-10-17 17:38:28,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 17:38:28,575 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_commit_release [2022-10-17 17:38:28,575 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_commit_release [2022-10-17 17:38:28,575 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_free_layout_hdr [2022-10-17 17:38:28,576 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_free_layout_hdr [2022-10-17 17:38:28,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-17 17:38:28,576 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-17 17:38:28,576 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_find_or_create_ds_client [2022-10-17 17:38:28,576 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_find_or_create_ds_client [2022-10-17 17:38:28,576 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-10-17 17:38:28,577 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-10-17 17:38:28,577 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64_rem [2022-10-17 17:38:28,577 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64_rem [2022-10-17 17:38:28,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-10-17 17:38:28,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-10-17 17:38:28,577 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_free_deveiceid_node [2022-10-17 17:38:28,578 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_free_deveiceid_node [2022-10-17 17:38:28,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 17:38:28,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-10-17 17:38:28,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-10-17 17:38:28,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-10-17 17:38:28,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-10-17 17:38:28,578 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_request_remove_commit_list [2022-10-17 17:38:28,579 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_request_remove_commit_list [2022-10-17 17:38:28,579 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_commit_done [2022-10-17 17:38:28,579 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_commit_done [2022-10-17 17:38:28,579 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-10-17 17:38:28,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-10-17 17:38:28,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:38:28,580 INFO L130 BoogieDeclarations]: Found specification of procedure FILELAYOUT_FROM_HDR [2022-10-17 17:38:28,580 INFO L138 BoogieDeclarations]: Found implementation of procedure FILELAYOUT_FROM_HDR [2022-10-17 17:38:28,580 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_inline_decode [2022-10-17 17:38:28,580 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_inline_decode [2022-10-17 17:38:28,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-17 17:38:28,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-17 17:38:28,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 17:38:28,581 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_alloc_layout_hdr [2022-10-17 17:38:28,581 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_alloc_layout_hdr [2022-10-17 17:38:28,581 INFO L130 BoogieDeclarations]: Found specification of procedure req_offset [2022-10-17 17:38:28,581 INFO L138 BoogieDeclarations]: Found implementation of procedure req_offset [2022-10-17 17:38:28,581 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 17:38:28,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 17:38:28,582 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_mark_request_commit [2022-10-17 17:38:28,582 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_mark_request_commit [2022-10-17 17:38:28,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_80___0 [2022-10-17 17:38:28,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_80___0 [2022-10-17 17:38:28,582 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-10-17 17:38:28,583 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-10-17 17:38:28,583 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-10-17 17:38:28,583 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-10-17 17:38:28,583 INFO L130 BoogieDeclarations]: Found specification of procedure _filelayout_free_lseg [2022-10-17 17:38:28,583 INFO L138 BoogieDeclarations]: Found implementation of procedure _filelayout_free_lseg [2022-10-17 17:38:28,583 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_alloc_lseg [2022-10-17 17:38:28,584 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_alloc_lseg [2022-10-17 17:38:28,584 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-10-17 17:38:28,584 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-10-17 17:38:28,584 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_set_rw_stateid [2022-10-17 17:38:28,584 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_set_rw_stateid [2022-10-17 17:38:28,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:38:28,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:38:28,585 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-17 17:38:28,585 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-17 17:38:28,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 17:38:28,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 17:38:28,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 17:38:28,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 17:38:28,586 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_commit_count_stats [2022-10-17 17:38:28,586 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_commit_count_stats [2022-10-17 17:38:28,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-10-17 17:38:28,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-10-17 17:38:28,586 INFO L130 BoogieDeclarations]: Found specification of procedure FILELAYOUT_DEVID_NODE [2022-10-17 17:38:28,586 INFO L138 BoogieDeclarations]: Found implementation of procedure FILELAYOUT_DEVID_NODE [2022-10-17 17:38:28,586 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_resend_writes [2022-10-17 17:38:28,587 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_resend_writes [2022-10-17 17:38:28,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-10-17 17:38:28,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-10-17 17:38:28,587 INFO L130 BoogieDeclarations]: Found specification of procedure nfs41_sequence_done [2022-10-17 17:38:28,587 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs41_sequence_done [2022-10-17 17:38:28,587 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_free_deviceid [2022-10-17 17:38:28,587 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_free_deviceid [2022-10-17 17:38:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_retry_commit [2022-10-17 17:38:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_retry_commit [2022-10-17 17:38:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_scan_commit_lists [2022-10-17 17:38:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_scan_commit_lists [2022-10-17 17:38:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_fenceme [2022-10-17 17:38:28,588 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_fenceme [2022-10-17 17:38:28,588 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_commit_pagelist [2022-10-17 17:38:28,589 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_commit_pagelist [2022-10-17 17:38:28,589 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_put_lseg [2022-10-17 17:38:28,589 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_put_lseg [2022-10-17 17:38:28,589 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-10-17 17:38:28,589 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-10-17 17:38:28,589 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2022-10-17 17:38:28,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2022-10-17 17:38:28,590 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_count_stats [2022-10-17 17:38:28,590 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_count_stats [2022-10-17 17:38:28,590 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_reset_read [2022-10-17 17:38:28,590 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_reset_read [2022-10-17 17:38:28,590 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_exit [2022-10-17 17:38:28,590 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_exit [2022-10-17 17:38:28,591 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-10-17 17:38:28,591 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-10-17 17:38:28,591 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-10-17 17:38:28,591 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-10-17 17:38:28,591 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_count_iostats [2022-10-17 17:38:28,591 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_count_iostats [2022-10-17 17:38:28,591 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_clear_request_commit [2022-10-17 17:38:28,592 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_clear_request_commit [2022-10-17 17:38:28,592 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-10-17 17:38:28,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-10-17 17:38:28,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 17:38:28,592 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-17 17:38:28,592 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-17 17:38:28,592 INFO L130 BoogieDeclarations]: Found specification of procedure NFS_FILEID [2022-10-17 17:38:28,593 INFO L138 BoogieDeclarations]: Found implementation of procedure NFS_FILEID [2022-10-17 17:38:28,593 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_calc_ds_index [2022-10-17 17:38:28,593 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_calc_ds_index [2022-10-17 17:38:28,593 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_get_dserver_offset [2022-10-17 17:38:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_get_dserver_offset [2022-10-17 17:38:28,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 17:38:28,594 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_put_deviceid [2022-10-17 17:38:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_put_deviceid [2022-10-17 17:38:28,594 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-10-17 17:38:28,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-10-17 17:38:28,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 17:38:28,595 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_prepare [2022-10-17 17:38:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_prepare [2022-10-17 17:38:28,595 INFO L130 BoogieDeclarations]: Found specification of procedure NFS_I [2022-10-17 17:38:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure NFS_I [2022-10-17 17:38:28,595 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-17 17:38:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-17 17:38:28,596 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-10-17 17:38:28,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-10-17 17:38:28,596 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_put_client [2022-10-17 17:38:28,596 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_put_client [2022-10-17 17:38:28,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-10-17 17:38:28,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-10-17 17:38:28,596 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_call_done [2022-10-17 17:38:28,597 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_call_done [2022-10-17 17:38:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-17 17:38:28,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-17 17:38:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_release [2022-10-17 17:38:28,597 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_release [2022-10-17 17:38:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure nfs41_setup_sequence [2022-10-17 17:38:28,597 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs41_setup_sequence [2022-10-17 17:38:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-10-17 17:38:28,598 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-10-17 17:38:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_commitdata_alloc [2022-10-17 17:38:28,598 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_commitdata_alloc [2022-10-17 17:38:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_set_scratch_buffer [2022-10-17 17:38:28,598 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_set_scratch_buffer [2022-10-17 17:38:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_79 [2022-10-17 17:38:28,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_79 [2022-10-17 17:38:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_pagelist [2022-10-17 17:38:28,599 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_pagelist [2022-10-17 17:38:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-17 17:38:28,599 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-17 17:38:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 17:38:28,600 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 17:38:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_call_done [2022-10-17 17:38:28,600 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_call_done [2022-10-17 17:38:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 17:38:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_free_fh_array [2022-10-17 17:38:28,600 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_free_fh_array [2022-10-17 17:38:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_pagelist [2022-10-17 17:38:28,601 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_pagelist [2022-10-17 17:38:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 17:38:28,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 17:38:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_80 [2022-10-17 17:38:28,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_80 [2022-10-17 17:38:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_initiate_commit [2022-10-17 17:38:28,601 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_initiate_commit [2022-10-17 17:38:28,602 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2022-10-17 17:38:28,602 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-10-17 17:38:28,602 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-10-17 17:38:28,602 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-10-17 17:38:28,602 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-10-17 17:38:28,602 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_print_deviceid [2022-10-17 17:38:28,603 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_print_deviceid [2022-10-17 17:38:28,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-10-17 17:38:28,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-10-17 17:38:28,603 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_update_layout [2022-10-17 17:38:28,603 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_update_layout [2022-10-17 17:38:28,603 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-10-17 17:38:28,604 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-10-17 17:38:28,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_nfs4filelayout_exit_5_2 [2022-10-17 17:38:28,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_nfs4filelayout_exit_5_2 [2022-10-17 17:38:28,604 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_release [2022-10-17 17:38:28,604 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_release [2022-10-17 17:38:28,604 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_mark_deviceid_unavailable [2022-10-17 17:38:28,604 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_mark_deviceid_unavailable [2022-10-17 17:38:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_test_devid_unavailable [2022-10-17 17:38:28,605 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_test_devid_unavailable [2022-10-17 17:38:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:38:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-10-17 17:38:28,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-10-17 17:38:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_prepare [2022-10-17 17:38:28,605 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_prepare [2022-10-17 17:38:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-10-17 17:38:28,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-10-17 17:38:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_reset_to_mds [2022-10-17 17:38:28,606 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_reset_to_mds [2022-10-17 17:38:29,772 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:38:29,781 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:38:30,456 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 17:38:33,237 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-10-17 17:38:33,462 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:38:34,751 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:38:34,752 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 17:38:34,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:38:34 BoogieIcfgContainer [2022-10-17 17:38:34,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:38:34,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 17:38:34,762 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 17:38:34,766 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 17:38:34,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 05:38:22" (1/3) ... [2022-10-17 17:38:34,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502c47db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:38:34, skipping insertion in model container [2022-10-17 17:38:34,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:38:27" (2/3) ... [2022-10-17 17:38:34,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502c47db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:38:34, skipping insertion in model container [2022-10-17 17:38:34,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:38:34" (3/3) ... [2022-10-17 17:38:34,768 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i [2022-10-17 17:38:34,789 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 17:38:34,789 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-10-17 17:38:34,916 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 17:38:34,925 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;@1f6e3411, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 17:38:34,925 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-10-17 17:38:34,939 INFO L276 IsEmpty]: Start isEmpty. Operand has 1742 states, 1020 states have (on average 1.3068627450980392) internal successors, (1333), 1071 states have internal predecessors, (1333), 594 states have call successors, (594), 125 states have call predecessors, (594), 124 states have return successors, (588), 565 states have call predecessors, (588), 588 states have call successors, (588) [2022-10-17 17:38:34,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2022-10-17 17:38:34,993 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:38:34,994 INFO L195 NwaCegarLoop]: trace histogram [35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:38:34,995 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-10-17 17:38:35,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:38:35,003 INFO L85 PathProgramCache]: Analyzing trace with hash 971470416, now seen corresponding path program 1 times [2022-10-17 17:38:35,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:38:35,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458129009] [2022-10-17 17:38:35,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:38:35,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:38:35,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:38:36,280 INFO L134 CoverageAnalysis]: Checked inductivity of 4556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4556 trivial. 0 not checked. [2022-10-17 17:38:36,281 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:38:36,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458129009] [2022-10-17 17:38:36,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458129009] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:38:36,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:38:36,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:38:36,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470567725] [2022-10-17 17:38:36,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:38:36,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:38:36,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:38:36,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:38:36,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:38:36,395 INFO L87 Difference]: Start difference. First operand has 1742 states, 1020 states have (on average 1.3068627450980392) internal successors, (1333), 1071 states have internal predecessors, (1333), 594 states have call successors, (594), 125 states have call predecessors, (594), 124 states have return successors, (588), 565 states have call predecessors, (588), 588 states have call successors, (588) Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-10-17 17:38:38,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:38:38,050 INFO L93 Difference]: Finished difference Result 5017 states and 7377 transitions. [2022-10-17 17:38:38,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 17:38:38,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 355 [2022-10-17 17:38:38,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:38:38,117 INFO L225 Difference]: With dead ends: 5017 [2022-10-17 17:38:38,117 INFO L226 Difference]: Without dead ends: 3334 [2022-10-17 17:38:38,135 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 [2022-10-17 17:38:38,138 INFO L413 NwaCegarLoop]: 2722 mSDtfsCounter, 2315 mSDsluCounter, 2470 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2315 SdHoareTripleChecker+Valid, 4892 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-10-17 17:38:38,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2315 Valid, 4892 Invalid, 655 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-10-17 17:38:38,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3334 states. [2022-10-17 17:38:38,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3334 to 3328. [2022-10-17 17:38:38,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3328 states, 1971 states have (on average 1.3033992897006597) internal successors, (2569), 2071 states have internal predecessors, (2569), 1110 states have call successors, (1110), 244 states have call predecessors, (1110), 243 states have return successors, (1106), 1060 states have call predecessors, (1106), 1106 states have call successors, (1106) [2022-10-17 17:38:38,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3328 states to 3328 states and 4785 transitions. [2022-10-17 17:38:38,458 INFO L78 Accepts]: Start accepts. Automaton has 3328 states and 4785 transitions. Word has length 355 [2022-10-17 17:38:38,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:38:38,460 INFO L495 AbstractCegarLoop]: Abstraction has 3328 states and 4785 transitions. [2022-10-17 17:38:38,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-10-17 17:38:38,461 INFO L276 IsEmpty]: Start isEmpty. Operand 3328 states and 4785 transitions. [2022-10-17 17:38:38,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2022-10-17 17:38:38,470 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:38:38,471 INFO L195 NwaCegarLoop]: trace histogram [35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:38:38,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 17:38:38,472 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-10-17 17:38:38,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:38:38,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1934450977, now seen corresponding path program 1 times [2022-10-17 17:38:38,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:38:38,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558748096] [2022-10-17 17:38:38,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:38:38,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:38:38,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:38:39,460 INFO L134 CoverageAnalysis]: Checked inductivity of 4556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4556 trivial. 0 not checked. [2022-10-17 17:38:39,461 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:38:39,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558748096] [2022-10-17 17:38:39,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558748096] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:38:39,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:38:39,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 17:38:39,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777894964] [2022-10-17 17:38:39,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:38:39,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 17:38:39,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:38:39,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 17:38:39,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-10-17 17:38:39,471 INFO L87 Difference]: Start difference. First operand 3328 states and 4785 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-10-17 17:38:47,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 17:38:47,593 INFO L93 Difference]: Finished difference Result 9811 states and 14080 transitions. [2022-10-17 17:38:47,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 17:38:47,594 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 365 [2022-10-17 17:38:47,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 17:38:47,653 INFO L225 Difference]: With dead ends: 9811 [2022-10-17 17:38:47,653 INFO L226 Difference]: Without dead ends: 6552 [2022-10-17 17:38:47,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-10-17 17:38:47,671 INFO L413 NwaCegarLoop]: 3242 mSDtfsCounter, 6255 mSDsluCounter, 7517 mSDsCounter, 0 mSdLazyCounter, 3115 mSolverCounterSat, 1097 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6339 SdHoareTripleChecker+Valid, 9621 SdHoareTripleChecker+Invalid, 4212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1097 IncrementalHoareTripleChecker+Valid, 3115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-10-17 17:38:47,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6339 Valid, 9621 Invalid, 4212 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1097 Valid, 3115 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-10-17 17:38:47,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6552 states. [2022-10-17 17:38:48,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6552 to 6474. [2022-10-17 17:38:48,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6474 states, 3855 states have (on average 1.3058365758754864) internal successors, (5034), 4055 states have internal predecessors, (5034), 2126 states have call successors, (2126), 490 states have call predecessors, (2126), 489 states have return successors, (2122), 2024 states have call predecessors, (2122), 2122 states have call successors, (2122) [2022-10-17 17:38:48,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6474 states to 6474 states and 9282 transitions. [2022-10-17 17:38:48,231 INFO L78 Accepts]: Start accepts. Automaton has 6474 states and 9282 transitions. Word has length 365 [2022-10-17 17:38:48,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 17:38:48,233 INFO L495 AbstractCegarLoop]: Abstraction has 6474 states and 9282 transitions. [2022-10-17 17:38:48,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-10-17 17:38:48,234 INFO L276 IsEmpty]: Start isEmpty. Operand 6474 states and 9282 transitions. [2022-10-17 17:38:48,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2022-10-17 17:38:48,243 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 17:38:48,244 INFO L195 NwaCegarLoop]: trace histogram [35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 17:38:48,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 17:38:48,245 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-10-17 17:38:48,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:38:48,245 INFO L85 PathProgramCache]: Analyzing trace with hash -305224842, now seen corresponding path program 1 times [2022-10-17 17:38:48,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-10-17 17:38:48,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782855894] [2022-10-17 17:38:48,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 17:38:48,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:38:48,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:38:48,710 INFO L134 CoverageAnalysis]: Checked inductivity of 4556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4556 trivial. 0 not checked. [2022-10-17 17:38:48,710 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-10-17 17:38:48,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782855894] [2022-10-17 17:38:48,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782855894] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 17:38:48,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 17:38:48,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 17:38:48,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066445192] [2022-10-17 17:38:48,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 17:38:48,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 17:38:48,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-10-17 17:38:48,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 17:38:48,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 17:38:48,714 INFO L87 Difference]: Start difference. First operand 6474 states and 9282 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37)