./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802b5db2-8c50-4587-9065-bc4dbdfd4e0c/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802b5db2-8c50-4587-9065-bc4dbdfd4e0c/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802b5db2-8c50-4587-9065-bc4dbdfd4e0c/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802b5db2-8c50-4587-9065-bc4dbdfd4e0c/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802b5db2-8c50-4587-9065-bc4dbdfd4e0c/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802b5db2-8c50-4587-9065-bc4dbdfd4e0c/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 678d1ed0889f06c506279e4c19484f47385b64dd1d4a949ec484624bf8468835 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:10:02,521 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:10:02,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:10:02,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:10:02,543 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:10:02,545 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:10:02,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:10:02,548 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:10:02,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:10:02,551 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:10:02,552 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:10:02,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:10:02,554 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:10:02,555 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:10:02,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:10:02,558 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:10:02,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:10:02,561 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:10:02,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:10:02,565 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:10:02,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:10:02,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:10:02,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:10:02,570 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:10:02,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:10:02,574 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:10:02,575 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:10:02,576 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:10:02,576 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:10:02,577 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:10:02,578 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:10:02,579 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:10:02,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:10:02,581 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:10:02,582 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:10:02,593 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:10:02,594 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:10:02,594 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:10:02,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:10:02,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:10:02,597 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:10:02,599 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802b5db2-8c50-4587-9065-bc4dbdfd4e0c/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 08:10:02,631 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:10:02,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:10:02,632 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:10:02,632 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:10:02,633 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:10:02,633 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:10:02,633 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:10:02,634 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:10:02,634 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:10:02,634 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:10:02,635 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:10:02,635 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:10:02,635 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:10:02,635 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:10:02,636 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:10:02,636 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:10:02,636 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:10:02,636 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:10:02,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:10:02,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:10:02,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:10:02,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:10:02,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:10:02,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:10:02,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:10:02,639 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:10:02,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:10:02,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:10:02,640 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:10:02,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:10:02,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:10:02,641 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:10:02,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:10:02,642 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:10:02,642 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:10:02,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:10:02,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:10:02,643 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:10:02,643 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_802b5db2-8c50-4587-9065-bc4dbdfd4e0c/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802b5db2-8c50-4587-9065-bc4dbdfd4e0c/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 678d1ed0889f06c506279e4c19484f47385b64dd1d4a949ec484624bf8468835 [2022-11-19 08:10:02,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:10:02,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:10:02,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:10:02,972 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:10:02,973 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:10:02,974 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802b5db2-8c50-4587-9065-bc4dbdfd4e0c/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2022-11-19 08:10:03,040 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802b5db2-8c50-4587-9065-bc4dbdfd4e0c/bin/utaipan-I9t0OCRTmS/data/9ef0fcea3/a25132d368974fe1bffaee9e69cafa61/FLAG5577fb1dd [2022-11-19 08:10:04,250 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:10:04,251 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802b5db2-8c50-4587-9065-bc4dbdfd4e0c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2022-11-19 08:10:04,333 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802b5db2-8c50-4587-9065-bc4dbdfd4e0c/bin/utaipan-I9t0OCRTmS/data/9ef0fcea3/a25132d368974fe1bffaee9e69cafa61/FLAG5577fb1dd [2022-11-19 08:10:04,454 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802b5db2-8c50-4587-9065-bc4dbdfd4e0c/bin/utaipan-I9t0OCRTmS/data/9ef0fcea3/a25132d368974fe1bffaee9e69cafa61 [2022-11-19 08:10:04,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:10:04,458 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:10:04,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:10:04,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:10:04,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:10:04,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:10:04" (1/1) ... [2022-11-19 08:10:04,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@364c6971 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:04, skipping insertion in model container [2022-11-19 08:10:04,467 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:10:04" (1/1) ... [2022-11-19 08:10:04,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:10:04,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:10:13,271 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802b5db2-8c50-4587-9065-bc4dbdfd4e0c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596672,596685] [2022-11-19 08:10:13,280 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802b5db2-8c50-4587-9065-bc4dbdfd4e0c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596841,596854] [2022-11-19 08:10:13,281 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802b5db2-8c50-4587-9065-bc4dbdfd4e0c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597008,597021] [2022-11-19 08:10:13,281 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802b5db2-8c50-4587-9065-bc4dbdfd4e0c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597176,597189] [2022-11-19 08:10:13,344 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:10:13,455 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:10:14,499 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802b5db2-8c50-4587-9065-bc4dbdfd4e0c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596672,596685] [2022-11-19 08:10:14,500 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802b5db2-8c50-4587-9065-bc4dbdfd4e0c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596841,596854] [2022-11-19 08:10:14,501 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802b5db2-8c50-4587-9065-bc4dbdfd4e0c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597008,597021] [2022-11-19 08:10:14,502 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802b5db2-8c50-4587-9065-bc4dbdfd4e0c/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597176,597189] [2022-11-19 08:10:14,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:10:15,055 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:10:15,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:15 WrapperNode [2022-11-19 08:10:15,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:10:15,057 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:10:15,057 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:10:15,057 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:10:15,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:15" (1/1) ... [2022-11-19 08:10:15,298 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:15" (1/1) ... [2022-11-19 08:10:15,725 INFO L138 Inliner]: procedures = 824, calls = 5711, calls flagged for inlining = 430, calls inlined = 371, statements flattened = 11550 [2022-11-19 08:10:15,726 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:10:15,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:10:15,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:10:15,728 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:10:15,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:15" (1/1) ... [2022-11-19 08:10:15,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:15" (1/1) ... [2022-11-19 08:10:15,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:15" (1/1) ... [2022-11-19 08:10:15,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:15" (1/1) ... [2022-11-19 08:10:16,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:15" (1/1) ... [2022-11-19 08:10:16,218 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:15" (1/1) ... [2022-11-19 08:10:16,288 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:15" (1/1) ... [2022-11-19 08:10:16,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:15" (1/1) ... [2022-11-19 08:10:16,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:10:16,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:10:16,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:10:16,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:10:16,412 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:15" (1/1) ... [2022-11-19 08:10:16,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:10:16,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802b5db2-8c50-4587-9065-bc4dbdfd4e0c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:10:16,455 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802b5db2-8c50-4587-9065-bc4dbdfd4e0c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:10:16,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_802b5db2-8c50-4587-9065-bc4dbdfd4e0c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:10:16,522 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-19 08:10:16,522 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-19 08:10:16,522 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_remove [2022-11-19 08:10:16,523 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_remove [2022-11-19 08:10:16,523 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_led [2022-11-19 08:10:16,523 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_led [2022-11-19 08:10:16,523 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_alloc_rx_skbs [2022-11-19 08:10:16,523 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_alloc_rx_skbs [2022-11-19 08:10:16,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 08:10:16,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 08:10:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure rx_set_rss [2022-11-19 08:10:16,524 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_set_rss [2022-11-19 08:10:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_power_aux [2022-11-19 08:10:16,525 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_power_aux [2022-11-19 08:10:16,526 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-19 08:10:16,526 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-19 08:10:16,526 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2022-11-19 08:10:16,526 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2022-11-19 08:10:16,526 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-19 08:10:16,526 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-19 08:10:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_add_filter [2022-11-19 08:10:16,527 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_add_filter [2022-11-19 08:10:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-19 08:10:16,527 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-19 08:10:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2022-11-19 08:10:16,527 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2022-11-19 08:10:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2022-11-19 08:10:16,528 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2022-11-19 08:10:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-19 08:10:16,528 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-19 08:10:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-19 08:10:16,529 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-19 08:10:16,529 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_init_netdev [2022-11-19 08:10:16,529 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_init_netdev [2022-11-19 08:10:16,529 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-19 08:10:16,530 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-19 08:10:16,530 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-19 08:10:16,530 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-19 08:10:16,530 INFO L130 BoogieDeclarations]: Found specification of procedure netif_schedule_queue [2022-11-19 08:10:16,530 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_schedule_queue [2022-11-19 08:10:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_regs_len [2022-11-19 08:10:16,531 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_regs_len [2022-11-19 08:10:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 08:10:16,533 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 08:10:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_update [2022-11-19 08:10:16,533 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_update [2022-11-19 08:10:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 08:10:16,533 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 08:10:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 08:10:16,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 08:10:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_ramset [2022-11-19 08:10:16,534 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_ramset [2022-11-19 08:10:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:10:16,535 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_update_features [2022-11-19 08:10:16,535 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_update_features [2022-11-19 08:10:16,535 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_netpoll [2022-11-19 08:10:16,536 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_netpoll [2022-11-19 08:10:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-19 08:10:16,536 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-19 08:10:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 08:10:16,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 08:10:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-11-19 08:10:16,537 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-11-19 08:10:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-19 08:10:16,537 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-19 08:10:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-19 08:10:16,538 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-19 08:10:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 08:10:16,538 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 08:10:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_lock [2022-11-19 08:10:16,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_lock [2022-11-19 08:10:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-19 08:10:16,539 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-19 08:10:16,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-19 08:10:16,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-19 08:10:16,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:10:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-19 08:10:16,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-19 08:10:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-19 08:10:16,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-19 08:10:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_add [2022-11-19 08:10:16,541 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_add [2022-11-19 08:10:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-11-19 08:10:16,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-11-19 08:10:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-19 08:10:16,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-19 08:10:16,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2022-11-19 08:10:16,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2022-11-19 08:10:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2022-11-19 08:10:16,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2022-11-19 08:10:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-19 08:10:16,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-19 08:10:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:10:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_map_skb [2022-11-19 08:10:16,545 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_map_skb [2022-11-19 08:10:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_resume [2022-11-19 08:10:16,545 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_resume [2022-11-19 08:10:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure roundup_ring_size [2022-11-19 08:10:16,546 INFO L138 BoogieDeclarations]: Found implementation of procedure roundup_ring_size [2022-11-19 08:10:16,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 08:10:16,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 08:10:16,546 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 08:10:16,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 08:10:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:10:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 08:10:16,551 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read32 [2022-11-19 08:10:16,552 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read32 [2022-11-19 08:10:16,552 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-19 08:10:16,552 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-19 08:10:16,553 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_disable [2022-11-19 08:10:16,553 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_disable [2022-11-19 08:10:16,554 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_clean [2022-11-19 08:10:16,555 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_clean [2022-11-19 08:10:16,555 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-11-19 08:10:16,560 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-11-19 08:10:16,560 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 08:10:16,560 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 08:10:16,560 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_down [2022-11-19 08:10:16,560 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_down [2022-11-19 08:10:16,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-19 08:10:16,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-19 08:10:16,561 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_reinit [2022-11-19 08:10:16,561 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_reinit [2022-11-19 08:10:16,561 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-19 08:10:16,561 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-19 08:10:16,561 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read16 [2022-11-19 08:10:16,561 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read16 [2022-11-19 08:10:16,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:10:16,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:10:16,562 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write16 [2022-11-19 08:10:16,562 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write16 [2022-11-19 08:10:16,562 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-19 08:10:16,562 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-19 08:10:16,562 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_free_buffers [2022-11-19 08:10:16,563 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_free_buffers [2022-11-19 08:10:16,563 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-19 08:10:16,563 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-19 08:10:16,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 08:10:16,563 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-19 08:10:16,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-19 08:10:16,563 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-11-19 08:10:16,564 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-11-19 08:10:16,564 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2022-11-19 08:10:16,564 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2022-11-19 08:10:16,564 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-19 08:10:16,564 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-19 08:10:16,564 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read32 [2022-11-19 08:10:16,564 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read32 [2022-11-19 08:10:16,565 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-19 08:10:16,565 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_multicast [2022-11-19 08:10:16,565 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_multicast [2022-11-19 08:10:16,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-19 08:10:16,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-19 08:10:16,565 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_prefetch_init [2022-11-19 08:10:16,565 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_prefetch_init [2022-11-19 08:10:16,565 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_reset [2022-11-19 08:10:16,566 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_reset [2022-11-19 08:10:16,566 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-19 08:10:16,566 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-19 08:10:16,566 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-19 08:10:16,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-19 08:10:16,566 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-19 08:10:16,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-19 08:10:16,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2022-11-19 08:10:16,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2022-11-19 08:10:16,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 08:10:16,567 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 08:10:16,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-19 08:10:16,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-19 08:10:16,567 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-19 08:10:16,568 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-19 08:10:16,568 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vpd_wait [2022-11-19 08:10:16,568 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vpd_wait [2022-11-19 08:10:16,568 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-19 08:10:16,568 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-19 08:10:16,568 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_shutdown [2022-11-19 08:10:16,568 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_shutdown [2022-11-19 08:10:16,569 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read16 [2022-11-19 08:10:16,569 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read16 [2022-11-19 08:10:16,569 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_le [2022-11-19 08:10:16,569 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_le [2022-11-19 08:10:16,569 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_stop [2022-11-19 08:10:16,569 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_stop [2022-11-19 08:10:16,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:10:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 08:10:16,570 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 08:10:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:10:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_down [2022-11-19 08:10:16,574 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_down [2022-11-19 08:10:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-19 08:10:16,574 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-19 08:10:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure __gm_phy_read [2022-11-19 08:10:16,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __gm_phy_read [2022-11-19 08:10:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 08:10:16,575 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 08:10:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2022-11-19 08:10:16,575 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2022-11-19 08:10:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-19 08:10:16,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-19 08:10:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure gma_write16 [2022-11-19 08:10:16,575 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_write16 [2022-11-19 08:10:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-19 08:10:16,576 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-19 08:10:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_next_rx [2022-11-19 08:10:16,576 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_next_rx [2022-11-19 08:10:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-19 08:10:16,576 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-19 08:10:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2022-11-19 08:10:16,577 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2022-11-19 08:10:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_eeprom_len [2022-11-19 08:10:16,577 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_eeprom_len [2022-11-19 08:10:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-19 08:10:16,577 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-19 08:10:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_79 [2022-11-19 08:10:16,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_79 [2022-11-19 08:10:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:10:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_us2clk [2022-11-19 08:10:16,578 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_us2clk [2022-11-19 08:10:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 08:10:16,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 08:10:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2022-11-19 08:10:16,578 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2022-11-19 08:10:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-19 08:10:16,579 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-19 08:10:16,579 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2022-11-19 08:10:16,579 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2022-11-19 08:10:16,579 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-19 08:10:16,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-19 08:10:16,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2022-11-19 08:10:16,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2022-11-19 08:10:16,580 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-19 08:10:16,581 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-19 08:10:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_qset [2022-11-19 08:10:16,586 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_qset [2022-11-19 08:10:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_mhz [2022-11-19 08:10:16,586 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_mhz [2022-11-19 08:10:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-19 08:10:16,586 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-19 08:10:16,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 08:10:16,587 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 08:10:16,587 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-19 08:10:16,588 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-19 08:10:16,589 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats32 [2022-11-19 08:10:16,590 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats32 [2022-11-19 08:10:16,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 08:10:16,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 08:10:16,590 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-19 08:10:16,590 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-19 08:10:16,590 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_supported_modes [2022-11-19 08:10:16,590 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_supported_modes [2022-11-19 08:10:16,591 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_read [2022-11-19 08:10:16,591 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_read [2022-11-19 08:10:16,591 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_alloc [2022-11-19 08:10:16,591 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_alloc [2022-11-19 08:10:16,591 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2022-11-19 08:10:16,591 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2022-11-19 08:10:16,591 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_unlock [2022-11-19 08:10:16,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_unlock [2022-11-19 08:10:16,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 08:10:16,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 08:10:16,592 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_show_addr [2022-11-19 08:10:16,592 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_show_addr [2022-11-19 08:10:16,592 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-19 08:10:16,592 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-19 08:10:16,592 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_close [2022-11-19 08:10:16,592 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_close [2022-11-19 08:10:16,593 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-19 08:10:16,593 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-19 08:10:16,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 08:10:16,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 08:10:16,593 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_start [2022-11-19 08:10:16,593 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_start [2022-11-19 08:10:16,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:10:16,593 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-11-19 08:10:16,594 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-11-19 08:10:16,594 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats64 [2022-11-19 08:10:16,594 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats64 [2022-11-19 08:10:16,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-19 08:10:16,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-19 08:10:16,594 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-19 08:10:16,594 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-19 08:10:16,594 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 08:10:16,595 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 08:10:16,595 INFO L130 BoogieDeclarations]: Found specification of procedure pci_is_pcie [2022-11-19 08:10:16,595 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_is_pcie [2022-11-19 08:10:16,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 08:10:16,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-19 08:10:16,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-19 08:10:16,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 08:10:16,595 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-19 08:10:16,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-19 08:10:16,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_80 [2022-11-19 08:10:16,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_80 [2022-11-19 08:10:16,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 08:10:16,596 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 08:10:16,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-19 08:10:16,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-19 08:10:16,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-19 08:10:16,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-19 08:10:16,597 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_up [2022-11-19 08:10:16,597 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_up [2022-11-19 08:10:16,597 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-11-19 08:10:16,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-11-19 08:10:16,597 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_unmap [2022-11-19 08:10:16,597 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_unmap [2022-11-19 08:10:16,597 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_put_idx [2022-11-19 08:10:16,598 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_put_idx [2022-11-19 08:10:16,598 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 08:10:16,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 08:10:16,598 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_dma_map [2022-11-19 08:10:16,598 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_dma_map [2022-11-19 08:10:16,598 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 08:10:16,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 08:10:16,598 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_power_up [2022-11-19 08:10:16,599 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_power_up [2022-11-19 08:10:16,599 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_init [2022-11-19 08:10:16,599 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_init [2022-11-19 08:10:16,599 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-19 08:10:16,599 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-19 08:10:16,599 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_complete [2022-11-19 08:10:16,599 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_complete [2022-11-19 08:10:16,599 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2022-11-19 08:10:16,600 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2022-11-19 08:10:16,600 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-19 08:10:16,600 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-19 08:10:16,600 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read16 [2022-11-19 08:10:16,600 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read16 [2022-11-19 08:10:16,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 08:10:16,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 08:10:16,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 08:10:16,601 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_up [2022-11-19 08:10:16,601 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_up [2022-11-19 08:10:16,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 08:10:16,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 08:10:16,601 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_timeout [2022-11-19 08:10:16,601 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_timeout [2022-11-19 08:10:16,601 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-19 08:10:16,601 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-19 08:10:16,602 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_wol_supported [2022-11-19 08:10:16,602 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_wol_supported [2022-11-19 08:10:16,602 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write32 [2022-11-19 08:10:16,602 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write32 [2022-11-19 08:10:16,602 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-11-19 08:10:16,602 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-11-19 08:10:16,602 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_submit [2022-11-19 08:10:16,602 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_submit [2022-11-19 08:10:16,603 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-19 08:10:16,603 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-19 08:10:16,603 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-19 08:10:16,603 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-19 08:10:16,603 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vlan_mode [2022-11-19 08:10:16,603 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vlan_mode [2022-11-19 08:10:16,603 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read8 [2022-11-19 08:10:16,603 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read8 [2022-11-19 08:10:16,604 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2022-11-19 08:10:16,604 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2022-11-19 08:10:16,604 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read32 [2022-11-19 08:10:16,604 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read32 [2022-11-19 08:10:16,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_phy_lock_of_sky2_port [2022-11-19 08:10:16,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_phy_lock_of_sky2_port [2022-11-19 08:10:16,604 INFO L130 BoogieDeclarations]: Found specification of procedure gma_set_addr [2022-11-19 08:10:16,604 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_set_addr [2022-11-19 08:10:16,605 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-19 08:10:16,605 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-19 08:10:16,605 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-11-19 08:10:16,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-11-19 08:10:16,605 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-19 08:10:16,605 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-19 08:10:16,605 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-19 08:10:16,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-19 08:10:16,607 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-19 08:10:16,607 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-19 08:10:16,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 08:10:16,607 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_nway_reset [2022-11-19 08:10:16,607 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_nway_reset [2022-11-19 08:10:16,607 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-19 08:10:16,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-19 08:10:16,608 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-19 08:10:16,608 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-19 08:10:16,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-19 08:10:16,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-19 08:10:16,608 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-19 08:10:16,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-19 08:10:16,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-19 08:10:16,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-19 08:10:16,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 08:10:16,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 08:10:16,609 INFO L130 BoogieDeclarations]: Found specification of procedure tx_avail [2022-11-19 08:10:16,609 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_avail [2022-11-19 08:10:16,609 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_unmap_skb [2022-11-19 08:10:16,609 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_unmap_skb [2022-11-19 08:10:16,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-19 08:10:16,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-19 08:10:16,610 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_clk2us [2022-11-19 08:10:16,610 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_clk2us [2022-11-19 08:10:16,610 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_tx_stfwd [2022-11-19 08:10:16,610 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_tx_stfwd [2022-11-19 08:10:16,610 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_enable_rx_tx [2022-11-19 08:10:16,610 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_enable_rx_tx [2022-11-19 08:10:16,610 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 08:10:16,610 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 08:10:16,611 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-19 08:10:16,611 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-19 08:10:16,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sky2_cleanup_module_22_2 [2022-11-19 08:10:16,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sky2_cleanup_module_22_2 [2022-11-19 08:10:16,611 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-19 08:10:16,611 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-19 08:10:16,611 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_setup_irq [2022-11-19 08:10:16,611 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_setup_irq [2022-11-19 08:10:16,612 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 08:10:16,612 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 08:10:16,612 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-11-19 08:10:16,612 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-11-19 08:10:16,612 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-19 08:10:16,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-19 08:10:16,612 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_is_copper [2022-11-19 08:10:16,612 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_is_copper [2022-11-19 08:10:16,613 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-19 08:10:16,613 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-19 08:10:16,613 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_suspend [2022-11-19 08:10:16,613 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_suspend [2022-11-19 08:10:16,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_6 [2022-11-19 08:10:16,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_6 [2022-11-19 08:10:16,613 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-19 08:10:16,613 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-19 08:10:16,614 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write16 [2022-11-19 08:10:16,614 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write16 [2022-11-19 08:10:16,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 08:10:16,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 08:10:16,614 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-19 08:10:16,614 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-19 08:10:16,614 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write8 [2022-11-19 08:10:16,614 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write8 [2022-11-19 08:10:16,615 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_write [2022-11-19 08:10:16,615 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_write [2022-11-19 08:10:16,615 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-11-19 08:10:16,615 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-11-19 08:10:16,615 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-19 08:10:16,615 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-19 08:10:16,615 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write32 [2022-11-19 08:10:16,615 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write32 [2022-11-19 08:10:16,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:10:16,616 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read64 [2022-11-19 08:10:16,616 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read64 [2022-11-19 08:10:16,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 08:10:16,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 08:10:16,616 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-19 08:10:16,616 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-19 08:10:16,616 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_open [2022-11-19 08:10:16,617 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_open [2022-11-19 08:10:16,617 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-19 08:10:18,373 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:10:18,379 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:10:18,562 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 08:10:32,639 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-19 08:10:33,081 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:10:38,247 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:10:38,247 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-19 08:10:38,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:10:38 BoogieIcfgContainer [2022-11-19 08:10:38,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:10:38,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:10:38,268 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:10:38,272 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:10:38,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:10:04" (1/3) ... [2022-11-19 08:10:38,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38c6f93a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:10:38, skipping insertion in model container [2022-11-19 08:10:38,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:10:15" (2/3) ... [2022-11-19 08:10:38,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38c6f93a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:10:38, skipping insertion in model container [2022-11-19 08:10:38,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:10:38" (3/3) ... [2022-11-19 08:10:38,276 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2022-11-19 08:10:38,304 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:10:38,304 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-19 08:10:38,468 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:10:38,476 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;@2b21a4d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:10:38,478 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-19 08:10:38,496 INFO L276 IsEmpty]: Start isEmpty. Operand has 3403 states, 1942 states have (on average 1.311534500514933) internal successors, (2547), 2024 states have internal predecessors, (2547), 1244 states have call successors, (1244), 216 states have call predecessors, (1244), 215 states have return successors, (1234), 1209 states have call predecessors, (1234), 1234 states have call successors, (1234) [2022-11-19 08:10:38,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2022-11-19 08:10:38,554 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:38,555 INFO L195 NwaCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:38,556 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:10:38,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:38,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1248753621, now seen corresponding path program 1 times [2022-11-19 08:10:38,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:10:38,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987141560] [2022-11-19 08:10:38,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:10:38,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:10:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:10:40,539 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4032 trivial. 0 not checked. [2022-11-19 08:10:40,542 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:10:40,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987141560] [2022-11-19 08:10:40,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987141560] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:10:40,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:10:40,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:10:40,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708656884] [2022-11-19 08:10:40,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:10:40,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:10:40,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:10:40,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:10:40,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:10:40,621 INFO L87 Difference]: Start difference. First operand has 3403 states, 1942 states have (on average 1.311534500514933) internal successors, (2547), 2024 states have internal predecessors, (2547), 1244 states have call successors, (1244), 216 states have call predecessors, (1244), 215 states have return successors, (1234), 1209 states have call predecessors, (1234), 1234 states have call successors, (1234) Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-19 08:10:48,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:10:48,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:48,233 INFO L93 Difference]: Finished difference Result 9957 states and 14907 transitions. [2022-11-19 08:10:48,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:10:48,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 343 [2022-11-19 08:10:48,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:48,313 INFO L225 Difference]: With dead ends: 9957 [2022-11-19 08:10:48,313 INFO L226 Difference]: Without dead ends: 6605 [2022-11-19 08:10:48,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:10:48,348 INFO L413 NwaCegarLoop]: 5556 mSDtfsCounter, 4804 mSDsluCounter, 4336 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4804 SdHoareTripleChecker+Valid, 9892 SdHoareTripleChecker+Invalid, 1253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:10:48,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4804 Valid, 9892 Invalid, 1253 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1243 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-11-19 08:10:48,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6605 states. [2022-11-19 08:10:48,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6605 to 6601. [2022-11-19 08:10:49,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6601 states, 3783 states have (on average 1.30954269098599) internal successors, (4954), 3946 states have internal predecessors, (4954), 2389 states have call successors, (2389), 427 states have call predecessors, (2389), 426 states have return successors, (2385), 2335 states have call predecessors, (2385), 2385 states have call successors, (2385) [2022-11-19 08:10:49,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6601 states to 6601 states and 9728 transitions. [2022-11-19 08:10:49,103 INFO L78 Accepts]: Start accepts. Automaton has 6601 states and 9728 transitions. Word has length 343 [2022-11-19 08:10:49,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:49,111 INFO L495 AbstractCegarLoop]: Abstraction has 6601 states and 9728 transitions. [2022-11-19 08:10:49,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-19 08:10:49,112 INFO L276 IsEmpty]: Start isEmpty. Operand 6601 states and 9728 transitions. [2022-11-19 08:10:49,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2022-11-19 08:10:49,136 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:49,136 INFO L195 NwaCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:49,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:10:49,137 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:10:49,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:49,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1264290676, now seen corresponding path program 1 times [2022-11-19 08:10:49,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:10:49,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001873715] [2022-11-19 08:10:49,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:10:49,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:10:49,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:10:50,399 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4032 trivial. 0 not checked. [2022-11-19 08:10:50,400 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:10:50,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001873715] [2022-11-19 08:10:50,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001873715] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:10:50,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:10:50,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:10:50,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325248939] [2022-11-19 08:10:50,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:10:50,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:10:50,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:10:50,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:10:50,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:10:50,410 INFO L87 Difference]: Start difference. First operand 6601 states and 9728 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-19 08:10:56,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:56,337 INFO L93 Difference]: Finished difference Result 15900 states and 23398 transitions. [2022-11-19 08:10:56,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:10:56,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 370 [2022-11-19 08:10:56,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:56,436 INFO L225 Difference]: With dead ends: 15900 [2022-11-19 08:10:56,436 INFO L226 Difference]: Without dead ends: 9364 [2022-11-19 08:10:56,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:10:56,493 INFO L413 NwaCegarLoop]: 5456 mSDtfsCounter, 4427 mSDsluCounter, 4326 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4427 SdHoareTripleChecker+Valid, 9782 SdHoareTripleChecker+Invalid, 1289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:10:56,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4427 Valid, 9782 Invalid, 1289 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-19 08:10:56,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9364 states. [2022-11-19 08:10:57,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9364 to 9336. [2022-11-19 08:10:57,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9336 states, 5353 states have (on average 1.305062581729871) internal successors, (6986), 5581 states have internal predecessors, (6986), 3358 states have call successors, (3358), 624 states have call predecessors, (3358), 622 states have return successors, (3354), 3276 states have call predecessors, (3354), 3354 states have call successors, (3354) [2022-11-19 08:10:57,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9336 states to 9336 states and 13698 transitions. [2022-11-19 08:10:57,417 INFO L78 Accepts]: Start accepts. Automaton has 9336 states and 13698 transitions. Word has length 370 [2022-11-19 08:10:57,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:57,423 INFO L495 AbstractCegarLoop]: Abstraction has 9336 states and 13698 transitions. [2022-11-19 08:10:57,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-19 08:10:57,424 INFO L276 IsEmpty]: Start isEmpty. Operand 9336 states and 13698 transitions. [2022-11-19 08:10:57,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2022-11-19 08:10:57,438 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:57,438 INFO L195 NwaCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:10:57,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:10:57,439 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:10:57,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:57,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1887435336, now seen corresponding path program 1 times [2022-11-19 08:10:57,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:10:57,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221155518] [2022-11-19 08:10:57,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:10:57,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:10:57,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:10:58,325 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4032 trivial. 0 not checked. [2022-11-19 08:10:58,325 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:10:58,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221155518] [2022-11-19 08:10:58,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221155518] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:10:58,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:10:58,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:10:58,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450841948] [2022-11-19 08:10:58,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:10:58,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:10:58,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:10:58,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:10:58,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:10:58,329 INFO L87 Difference]: Start difference. First operand 9336 states and 13698 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-19 08:11:04,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:04,580 INFO L93 Difference]: Finished difference Result 27326 states and 40092 transitions. [2022-11-19 08:11:04,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:11:04,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 371 [2022-11-19 08:11:04,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:04,750 INFO L225 Difference]: With dead ends: 27326 [2022-11-19 08:11:04,751 INFO L226 Difference]: Without dead ends: 18055 [2022-11-19 08:11:04,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:11:04,825 INFO L413 NwaCegarLoop]: 6393 mSDtfsCounter, 4638 mSDsluCounter, 4314 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4638 SdHoareTripleChecker+Valid, 10707 SdHoareTripleChecker+Invalid, 1459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:04,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4638 Valid, 10707 Invalid, 1459 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-19 08:11:04,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18055 states. [2022-11-19 08:11:06,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18055 to 18021. [2022-11-19 08:11:06,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18021 states, 10326 states have (on average 1.2992446252178966) internal successors, (13416), 10767 states have internal predecessors, (13416), 6475 states have call successors, (6475), 1220 states have call predecessors, (6475), 1217 states have return successors, (6471), 6318 states have call predecessors, (6471), 6471 states have call successors, (6471) [2022-11-19 08:11:06,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18021 states to 18021 states and 26362 transitions. [2022-11-19 08:11:06,170 INFO L78 Accepts]: Start accepts. Automaton has 18021 states and 26362 transitions. Word has length 371 [2022-11-19 08:11:06,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:06,171 INFO L495 AbstractCegarLoop]: Abstraction has 18021 states and 26362 transitions. [2022-11-19 08:11:06,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-19 08:11:06,172 INFO L276 IsEmpty]: Start isEmpty. Operand 18021 states and 26362 transitions. [2022-11-19 08:11:06,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-19 08:11:06,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:06,188 INFO L195 NwaCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:06,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:11:06,188 INFO L420 AbstractCegarLoop]: === Iteration 4 === 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:11:06,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:06,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1992745896, now seen corresponding path program 1 times [2022-11-19 08:11:06,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:11:06,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218310406] [2022-11-19 08:11:06,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:06,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:11:06,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:07,182 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4032 trivial. 0 not checked. [2022-11-19 08:11:07,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:11:07,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218310406] [2022-11-19 08:11:07,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218310406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:07,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:11:07,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:11:07,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542603580] [2022-11-19 08:11:07,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:07,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:11:07,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:11:07,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:11:07,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:11:07,187 INFO L87 Difference]: Start difference. First operand 18021 states and 26362 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-19 08:11:13,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:13,031 INFO L93 Difference]: Finished difference Result 43858 states and 63699 transitions. [2022-11-19 08:11:13,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:11:13,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 373 [2022-11-19 08:11:13,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:13,216 INFO L225 Difference]: With dead ends: 43858 [2022-11-19 08:11:13,217 INFO L226 Difference]: Without dead ends: 25902 [2022-11-19 08:11:13,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:11:13,330 INFO L413 NwaCegarLoop]: 5368 mSDtfsCounter, 3726 mSDsluCounter, 4309 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3726 SdHoareTripleChecker+Valid, 9677 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:13,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3726 Valid, 9677 Invalid, 1295 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1288 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-19 08:11:13,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25902 states. [2022-11-19 08:11:15,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25902 to 25869. [2022-11-19 08:11:15,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25869 states, 14549 states have (on average 1.2759639837789538) internal successors, (18564), 15187 states have internal predecessors, (18564), 9395 states have call successors, (9395), 1930 states have call predecessors, (9395), 1922 states have return successors, (9401), 9158 states have call predecessors, (9401), 9391 states have call successors, (9401) [2022-11-19 08:11:15,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25869 states to 25869 states and 37360 transitions. [2022-11-19 08:11:15,354 INFO L78 Accepts]: Start accepts. Automaton has 25869 states and 37360 transitions. Word has length 373 [2022-11-19 08:11:15,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:15,356 INFO L495 AbstractCegarLoop]: Abstraction has 25869 states and 37360 transitions. [2022-11-19 08:11:15,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-19 08:11:15,357 INFO L276 IsEmpty]: Start isEmpty. Operand 25869 states and 37360 transitions. [2022-11-19 08:11:15,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2022-11-19 08:11:15,372 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:15,372 INFO L195 NwaCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:15,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:11:15,373 INFO L420 AbstractCegarLoop]: === Iteration 5 === 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:11:15,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:15,374 INFO L85 PathProgramCache]: Analyzing trace with hash 360597014, now seen corresponding path program 1 times [2022-11-19 08:11:15,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:11:15,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864290507] [2022-11-19 08:11:15,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:15,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:11:15,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:16,266 INFO L134 CoverageAnalysis]: Checked inductivity of 4035 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4035 trivial. 0 not checked. [2022-11-19 08:11:16,266 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:11:16,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864290507] [2022-11-19 08:11:16,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864290507] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:16,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:11:16,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:11:16,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912948919] [2022-11-19 08:11:16,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:16,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:11:16,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:11:16,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:11:16,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:11:16,271 INFO L87 Difference]: Start difference. First operand 25869 states and 37360 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-19 08:11:23,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:23,629 INFO L93 Difference]: Finished difference Result 67305 states and 97331 transitions. [2022-11-19 08:11:23,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:11:23,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 395 [2022-11-19 08:11:23,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:24,190 INFO L225 Difference]: With dead ends: 67305 [2022-11-19 08:11:24,190 INFO L226 Difference]: Without dead ends: 41501 [2022-11-19 08:11:24,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:11:24,323 INFO L413 NwaCegarLoop]: 5830 mSDtfsCounter, 4785 mSDsluCounter, 4345 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4785 SdHoareTripleChecker+Valid, 10175 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:24,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4785 Valid, 10175 Invalid, 1350 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-19 08:11:24,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41501 states. [2022-11-19 08:11:27,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41501 to 41457. [2022-11-19 08:11:27,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41457 states, 23547 states have (on average 1.2809699749437296) internal successors, (30163), 24580 states have internal predecessors, (30163), 14872 states have call successors, (14872), 3050 states have call predecessors, (14872), 3035 states have return successors, (14888), 14472 states have call predecessors, (14888), 14868 states have call successors, (14888) [2022-11-19 08:11:27,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41457 states to 41457 states and 59923 transitions. [2022-11-19 08:11:27,439 INFO L78 Accepts]: Start accepts. Automaton has 41457 states and 59923 transitions. Word has length 395 [2022-11-19 08:11:27,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:27,440 INFO L495 AbstractCegarLoop]: Abstraction has 41457 states and 59923 transitions. [2022-11-19 08:11:27,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-19 08:11:27,441 INFO L276 IsEmpty]: Start isEmpty. Operand 41457 states and 59923 transitions. [2022-11-19 08:11:27,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2022-11-19 08:11:27,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:27,627 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:27,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:11:27,627 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:11:27,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:27,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1389865003, now seen corresponding path program 1 times [2022-11-19 08:11:27,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:11:27,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785263683] [2022-11-19 08:11:27,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:27,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:11:27,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:29,700 INFO L134 CoverageAnalysis]: Checked inductivity of 4529 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4529 trivial. 0 not checked. [2022-11-19 08:11:29,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:11:29,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785263683] [2022-11-19 08:11:29,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785263683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:29,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:11:29,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:11:29,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401742404] [2022-11-19 08:11:29,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:29,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:11:29,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:11:29,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:11:29,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:11:29,704 INFO L87 Difference]: Start difference. First operand 41457 states and 59923 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-19 08:11:35,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:37,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:11:40,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:40,273 INFO L93 Difference]: Finished difference Result 41764 states and 60200 transitions. [2022-11-19 08:11:40,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:11:40,274 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 399 [2022-11-19 08:11:40,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:40,515 INFO L225 Difference]: With dead ends: 41764 [2022-11-19 08:11:40,515 INFO L226 Difference]: Without dead ends: 41762 [2022-11-19 08:11:40,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:11:40,538 INFO L413 NwaCegarLoop]: 4388 mSDtfsCounter, 4862 mSDsluCounter, 8797 mSDsCounter, 0 mSdLazyCounter, 1867 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4876 SdHoareTripleChecker+Valid, 13185 SdHoareTripleChecker+Invalid, 1870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1867 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:40,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4876 Valid, 13185 Invalid, 1870 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1867 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2022-11-19 08:11:40,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41762 states. [2022-11-19 08:11:42,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41762 to 41760. [2022-11-19 08:11:43,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41760 states, 23726 states have (on average 1.280156790019388) internal successors, (30373), 24775 states have internal predecessors, (30373), 14904 states have call successors, (14904), 3142 states have call predecessors, (14904), 3127 states have return successors, (14920), 14504 states have call predecessors, (14920), 14900 states have call successors, (14920) [2022-11-19 08:11:43,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41760 states to 41760 states and 60197 transitions. [2022-11-19 08:11:43,392 INFO L78 Accepts]: Start accepts. Automaton has 41760 states and 60197 transitions. Word has length 399 [2022-11-19 08:11:43,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:43,393 INFO L495 AbstractCegarLoop]: Abstraction has 41760 states and 60197 transitions. [2022-11-19 08:11:43,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-19 08:11:43,394 INFO L276 IsEmpty]: Start isEmpty. Operand 41760 states and 60197 transitions. [2022-11-19 08:11:43,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2022-11-19 08:11:43,408 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:43,408 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:43,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:11:43,409 INFO L420 AbstractCegarLoop]: === Iteration 7 === 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:11:43,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:43,410 INFO L85 PathProgramCache]: Analyzing trace with hash -24664624, now seen corresponding path program 1 times [2022-11-19 08:11:43,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:11:43,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646361520] [2022-11-19 08:11:43,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:43,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:11:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:45,319 INFO L134 CoverageAnalysis]: Checked inductivity of 4531 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4529 trivial. 0 not checked. [2022-11-19 08:11:45,319 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:11:45,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646361520] [2022-11-19 08:11:45,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646361520] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:45,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:11:45,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:11:45,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531269380] [2022-11-19 08:11:45,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:45,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:11:45,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:11:45,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:11:45,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:11:45,323 INFO L87 Difference]: Start difference. First operand 41760 states and 60197 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-19 08:11:52,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:11:52,618 INFO L93 Difference]: Finished difference Result 41766 states and 60202 transitions. [2022-11-19 08:11:52,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:11:52,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 404 [2022-11-19 08:11:52,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:11:52,845 INFO L225 Difference]: With dead ends: 41766 [2022-11-19 08:11:52,846 INFO L226 Difference]: Without dead ends: 41764 [2022-11-19 08:11:52,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:11:52,874 INFO L413 NwaCegarLoop]: 4370 mSDtfsCounter, 4875 mSDsluCounter, 8718 mSDsCounter, 0 mSdLazyCounter, 1858 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4888 SdHoareTripleChecker+Valid, 13088 SdHoareTripleChecker+Invalid, 1859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:11:52,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4888 Valid, 13088 Invalid, 1859 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1858 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-19 08:11:52,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41764 states. [2022-11-19 08:11:55,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41764 to 41764. [2022-11-19 08:11:55,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41764 states, 23729 states have (on average 1.2801213704749463) internal successors, (30376), 24778 states have internal predecessors, (30376), 14904 states have call successors, (14904), 3143 states have call predecessors, (14904), 3128 states have return successors, (14920), 14504 states have call predecessors, (14920), 14900 states have call successors, (14920) [2022-11-19 08:11:55,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41764 states to 41764 states and 60200 transitions. [2022-11-19 08:11:56,001 INFO L78 Accepts]: Start accepts. Automaton has 41764 states and 60200 transitions. Word has length 404 [2022-11-19 08:11:56,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:11:56,001 INFO L495 AbstractCegarLoop]: Abstraction has 41764 states and 60200 transitions. [2022-11-19 08:11:56,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-19 08:11:56,002 INFO L276 IsEmpty]: Start isEmpty. Operand 41764 states and 60200 transitions. [2022-11-19 08:11:56,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2022-11-19 08:11:56,010 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:11:56,011 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:11:56,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 08:11:56,012 INFO L420 AbstractCegarLoop]: === Iteration 8 === 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:11:56,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:11:56,012 INFO L85 PathProgramCache]: Analyzing trace with hash 100833151, now seen corresponding path program 1 times [2022-11-19 08:11:56,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:11:56,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029844172] [2022-11-19 08:11:56,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:11:56,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:11:56,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:11:57,778 INFO L134 CoverageAnalysis]: Checked inductivity of 4543 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4539 trivial. 0 not checked. [2022-11-19 08:11:57,779 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:11:57,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029844172] [2022-11-19 08:11:57,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029844172] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:11:57,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:11:57,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:11:57,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542767268] [2022-11-19 08:11:57,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:11:57,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:11:57,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:11:57,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:11:57,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:11:57,782 INFO L87 Difference]: Start difference. First operand 41764 states and 60200 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-11-19 08:12:03,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:07,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:12:07,175 INFO L93 Difference]: Finished difference Result 41770 states and 60205 transitions. [2022-11-19 08:12:07,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:12:07,177 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 413 [2022-11-19 08:12:07,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:12:07,370 INFO L225 Difference]: With dead ends: 41770 [2022-11-19 08:12:07,371 INFO L226 Difference]: Without dead ends: 41768 [2022-11-19 08:12:07,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:12:07,397 INFO L413 NwaCegarLoop]: 4370 mSDtfsCounter, 4874 mSDsluCounter, 8718 mSDsCounter, 0 mSdLazyCounter, 1858 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4886 SdHoareTripleChecker+Valid, 13088 SdHoareTripleChecker+Invalid, 1859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:12:07,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4886 Valid, 13088 Invalid, 1859 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1858 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-11-19 08:12:07,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41768 states. [2022-11-19 08:12:10,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41768 to 41768. [2022-11-19 08:12:10,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41768 states, 23732 states have (on average 1.2800859598853869) internal successors, (30379), 24781 states have internal predecessors, (30379), 14904 states have call successors, (14904), 3144 states have call predecessors, (14904), 3129 states have return successors, (14920), 14504 states have call predecessors, (14920), 14900 states have call successors, (14920) [2022-11-19 08:12:10,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41768 states to 41768 states and 60203 transitions. [2022-11-19 08:12:10,482 INFO L78 Accepts]: Start accepts. Automaton has 41768 states and 60203 transitions. Word has length 413 [2022-11-19 08:12:10,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:12:10,484 INFO L495 AbstractCegarLoop]: Abstraction has 41768 states and 60203 transitions. [2022-11-19 08:12:10,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-11-19 08:12:10,485 INFO L276 IsEmpty]: Start isEmpty. Operand 41768 states and 60203 transitions. [2022-11-19 08:12:10,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2022-11-19 08:12:10,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:12:10,495 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:12:10,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 08:12:10,496 INFO L420 AbstractCegarLoop]: === Iteration 9 === 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:12:10,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:12:10,496 INFO L85 PathProgramCache]: Analyzing trace with hash 460020348, now seen corresponding path program 1 times [2022-11-19 08:12:10,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:12:10,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027515092] [2022-11-19 08:12:10,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:10,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:12:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:12:11,961 INFO L134 CoverageAnalysis]: Checked inductivity of 4553 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4547 trivial. 0 not checked. [2022-11-19 08:12:11,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:12:11,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027515092] [2022-11-19 08:12:11,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027515092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:12:11,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:12:11,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:12:11,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492827099] [2022-11-19 08:12:11,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:12:11,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:12:11,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:12:11,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:12:11,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:12:11,966 INFO L87 Difference]: Start difference. First operand 41768 states and 60203 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-11-19 08:12:18,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:12:20,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:12:20,578 INFO L93 Difference]: Finished difference Result 41838 states and 60288 transitions. [2022-11-19 08:12:20,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:12:20,579 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 418 [2022-11-19 08:12:20,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:12:20,743 INFO L225 Difference]: With dead ends: 41838 [2022-11-19 08:12:20,743 INFO L226 Difference]: Without dead ends: 41836 [2022-11-19 08:12:20,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:12:20,761 INFO L413 NwaCegarLoop]: 4373 mSDtfsCounter, 4870 mSDsluCounter, 8735 mSDsCounter, 0 mSdLazyCounter, 1860 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4883 SdHoareTripleChecker+Valid, 13108 SdHoareTripleChecker+Invalid, 1862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1860 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:12:20,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4883 Valid, 13108 Invalid, 1862 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1860 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-11-19 08:12:20,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41836 states. [2022-11-19 08:12:23,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41836 to 41820. [2022-11-19 08:12:23,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41820 states, 23767 states have (on average 1.2803466992047798) internal successors, (30430), 24816 states have internal predecessors, (30430), 14908 states have call successors, (14908), 3157 states have call predecessors, (14908), 3142 states have return successors, (14924), 14508 states have call predecessors, (14924), 14904 states have call successors, (14924) [2022-11-19 08:12:24,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41820 states to 41820 states and 60262 transitions. [2022-11-19 08:12:24,215 INFO L78 Accepts]: Start accepts. Automaton has 41820 states and 60262 transitions. Word has length 418 [2022-11-19 08:12:24,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:12:24,216 INFO L495 AbstractCegarLoop]: Abstraction has 41820 states and 60262 transitions. [2022-11-19 08:12:24,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-11-19 08:12:24,216 INFO L276 IsEmpty]: Start isEmpty. Operand 41820 states and 60262 transitions. [2022-11-19 08:12:24,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2022-11-19 08:12:24,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:12:24,230 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 5, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:12:24,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 08:12:24,231 INFO L420 AbstractCegarLoop]: === Iteration 10 === 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-19 08:12:24,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:12:24,231 INFO L85 PathProgramCache]: Analyzing trace with hash -2127929046, now seen corresponding path program 1 times [2022-11-19 08:12:24,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:12:24,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038865060] [2022-11-19 08:12:24,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:12:24,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:12:24,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:12:25,629 INFO L134 CoverageAnalysis]: Checked inductivity of 4566 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4558 trivial. 0 not checked. [2022-11-19 08:12:25,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:12:25,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038865060] [2022-11-19 08:12:25,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038865060] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:12:25,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:12:25,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:12:25,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995168326] [2022-11-19 08:12:25,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:12:25,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:12:25,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:12:25,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:12:25,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:12:25,633 INFO L87 Difference]: Start difference. First operand 41820 states and 60262 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48)