./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-atheros-alx-alx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f794e1-7180-4b14-b626-8fbabe09796d/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f794e1-7180-4b14-b626-8fbabe09796d/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_c4f794e1-7180-4b14-b626-8fbabe09796d/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f794e1-7180-4b14-b626-8fbabe09796d/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f794e1-7180-4b14-b626-8fbabe09796d/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_c4f794e1-7180-4b14-b626-8fbabe09796d/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 05e3ebea4820703b3259b4b6dd440513670562ea5166f99f8e3aabd0be2e3f32 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:43:30,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:43:30,489 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:43:30,509 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:43:30,510 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:43:30,511 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:43:30,512 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:43:30,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:43:30,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:43:30,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:43:30,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:43:30,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:43:30,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:43:30,521 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:43:30,522 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:43:30,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:43:30,524 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:43:30,525 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:43:30,527 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:43:30,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:43:30,531 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:43:30,533 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:43:30,534 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:43:30,535 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:43:30,538 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:43:30,539 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:43:30,539 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:43:30,540 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:43:30,541 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:43:30,542 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:43:30,543 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:43:30,544 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:43:30,545 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:43:30,545 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:43:30,547 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:43:30,547 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:43:30,548 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:43:30,549 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:43:30,549 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:43:30,550 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:43:30,551 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:43:30,552 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f794e1-7180-4b14-b626-8fbabe09796d/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:43:30,575 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:43:30,575 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:43:30,576 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:43:30,576 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:43:30,577 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:43:30,577 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:43:30,577 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:43:30,578 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:43:30,578 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:43:30,578 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:43:30,579 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:43:30,579 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:43:30,579 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:43:30,580 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:43:30,580 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:43:30,580 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:43:30,581 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:43:30,581 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:43:30,582 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:43:30,582 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:43:30,582 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:43:30,583 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:43:30,583 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:43:30,583 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:43:30,584 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:43:30,584 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:43:30,584 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:43:30,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:43:30,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:43:30,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:43:30,586 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:43:30,586 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:43:30,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:43:30,587 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:43:30,587 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:43:30,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:43:30,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:43:30,588 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:43:30,589 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_c4f794e1-7180-4b14-b626-8fbabe09796d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f794e1-7180-4b14-b626-8fbabe09796d/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05e3ebea4820703b3259b4b6dd440513670562ea5166f99f8e3aabd0be2e3f32 [2022-11-19 07:43:30,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:43:30,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:43:30,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:43:30,921 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:43:30,922 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:43:30,923 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f794e1-7180-4b14-b626-8fbabe09796d/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i [2022-11-19 07:43:31,002 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f794e1-7180-4b14-b626-8fbabe09796d/bin/utaipan-I9t0OCRTmS/data/a5e7e0749/5d6c7cbcc80542d5a0af3e8de0f49d8f/FLAG4757fe44d [2022-11-19 07:43:32,022 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:43:32,024 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f794e1-7180-4b14-b626-8fbabe09796d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i [2022-11-19 07:43:32,091 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f794e1-7180-4b14-b626-8fbabe09796d/bin/utaipan-I9t0OCRTmS/data/a5e7e0749/5d6c7cbcc80542d5a0af3e8de0f49d8f/FLAG4757fe44d [2022-11-19 07:43:32,393 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f794e1-7180-4b14-b626-8fbabe09796d/bin/utaipan-I9t0OCRTmS/data/a5e7e0749/5d6c7cbcc80542d5a0af3e8de0f49d8f [2022-11-19 07:43:32,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:43:32,397 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:43:32,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:43:32,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:43:32,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:43:32,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:32" (1/1) ... [2022-11-19 07:43:32,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@269a1a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:32, skipping insertion in model container [2022-11-19 07:43:32,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:32" (1/1) ... [2022-11-19 07:43:32,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:43:32,590 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:43:37,410 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f794e1-7180-4b14-b626-8fbabe09796d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i[460236,460249] [2022-11-19 07:43:37,416 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f794e1-7180-4b14-b626-8fbabe09796d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i[460405,460418] [2022-11-19 07:43:37,417 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f794e1-7180-4b14-b626-8fbabe09796d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i[460572,460585] [2022-11-19 07:43:37,422 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f794e1-7180-4b14-b626-8fbabe09796d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i[460740,460753] [2022-11-19 07:43:37,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:43:37,564 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:43:38,129 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f794e1-7180-4b14-b626-8fbabe09796d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i[460236,460249] [2022-11-19 07:43:38,130 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f794e1-7180-4b14-b626-8fbabe09796d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i[460405,460418] [2022-11-19 07:43:38,131 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f794e1-7180-4b14-b626-8fbabe09796d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i[460572,460585] [2022-11-19 07:43:38,131 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f794e1-7180-4b14-b626-8fbabe09796d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i[460740,460753] [2022-11-19 07:43:38,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:43:38,516 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:43:38,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:38 WrapperNode [2022-11-19 07:43:38,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:43:38,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:43:38,518 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:43:38,518 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:43:38,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:38" (1/1) ... [2022-11-19 07:43:38,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:38" (1/1) ... [2022-11-19 07:43:38,944 INFO L138 Inliner]: procedures = 676, calls = 4362, calls flagged for inlining = 337, calls inlined = 299, statements flattened = 8788 [2022-11-19 07:43:38,944 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:43:38,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:43:38,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:43:38,947 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:43:38,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:38" (1/1) ... [2022-11-19 07:43:38,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:38" (1/1) ... [2022-11-19 07:43:39,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:38" (1/1) ... [2022-11-19 07:43:39,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:38" (1/1) ... [2022-11-19 07:43:39,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:38" (1/1) ... [2022-11-19 07:43:39,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:38" (1/1) ... [2022-11-19 07:43:39,462 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:38" (1/1) ... [2022-11-19 07:43:39,498 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:38" (1/1) ... [2022-11-19 07:43:39,550 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:43:39,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:43:39,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:43:39,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:43:39,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:38" (1/1) ... [2022-11-19 07:43:39,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:43:39,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f794e1-7180-4b14-b626-8fbabe09796d/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:43:39,593 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f794e1-7180-4b14-b626-8fbabe09796d/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:43:39,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4f794e1-7180-4b14-b626-8fbabe09796d/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:43:39,641 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2022-11-19 07:43:39,641 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2022-11-19 07:43:39,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 07:43:39,641 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 07:43:39,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2022-11-19 07:43:39,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2022-11-19 07:43:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_80 [2022-11-19 07:43:39,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_80 [2022-11-19 07:43:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:43:39,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:43:39,642 INFO L130 BoogieDeclarations]: Found specification of procedure alx_halt [2022-11-19 07:43:39,643 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_halt [2022-11-19 07:43:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_txbuf [2022-11-19 07:43:39,643 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_txbuf [2022-11-19 07:43:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2022-11-19 07:43:39,643 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2022-11-19 07:43:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure alx_suspend [2022-11-19 07:43:39,643 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_suspend [2022-11-19 07:43:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_read_phy_reg [2022-11-19 07:43:39,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_read_phy_reg [2022-11-19 07:43:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 07:43:39,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 07:43:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-19 07:43:39,644 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-19 07:43:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure alx_wait_reg [2022-11-19 07:43:39,645 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_wait_reg [2022-11-19 07:43:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-19 07:43:39,645 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-19 07:43:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-19 07:43:39,645 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-19 07:43:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure alx_pci_error_resume [2022-11-19 07:43:39,646 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_pci_error_resume [2022-11-19 07:43:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure alx_tx_timeout [2022-11-19 07:43:39,646 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_tx_timeout [2022-11-19 07:43:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure alx_irq_enable [2022-11-19 07:43:39,646 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_irq_enable [2022-11-19 07:43:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 07:43:39,647 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 07:43:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_mem16 [2022-11-19 07:43:39,647 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_mem16 [2022-11-19 07:43:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure alx_irq_disable [2022-11-19 07:43:39,648 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_irq_disable [2022-11-19 07:43:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-19 07:43:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-19 07:43:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 07:43:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 07:43:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-19 07:43:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-19 07:43:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-19 07:43:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-19 07:43:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure alx_activate [2022-11-19 07:43:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_activate [2022-11-19 07:43:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure alx_remove [2022-11-19 07:43:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_remove [2022-11-19 07:43:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 07:43:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 07:43:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_msi [2022-11-19 07:43:39,652 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_msi [2022-11-19 07:43:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-19 07:43:39,652 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-19 07:43:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:43:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-19 07:43:39,653 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-19 07:43:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure alx_post_write [2022-11-19 07:43:39,653 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_post_write [2022-11-19 07:43:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_62 [2022-11-19 07:43:39,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_62 [2022-11-19 07:43:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-19 07:43:39,654 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-19 07:43:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-19 07:43:39,654 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-19 07:43:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_reg [2022-11-19 07:43:39,655 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_reg [2022-11-19 07:43:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2022-11-19 07:43:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_ext [2022-11-19 07:43:39,655 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_ext [2022-11-19 07:43:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 07:43:39,656 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 07:43:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 07:43:39,656 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 07:43:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 07:43:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure ethadv_to_hw_cfg [2022-11-19 07:43:39,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ethadv_to_hw_cfg [2022-11-19 07:43:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure alx_stop [2022-11-19 07:43:39,658 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_stop [2022-11-19 07:43:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 07:43:39,659 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 07:43:39,659 INFO L130 BoogieDeclarations]: Found specification of procedure alx_resume [2022-11-19 07:43:39,659 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_resume [2022-11-19 07:43:39,659 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-19 07:43:39,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-19 07:43:39,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:43:39,660 INFO L130 BoogieDeclarations]: Found specification of procedure alx_schedule_link_check [2022-11-19 07:43:39,660 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_schedule_link_check [2022-11-19 07:43:39,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 07:43:39,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 07:43:39,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:43:39,661 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-19 07:43:39,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-19 07:43:39,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 07:43:39,661 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 07:43:39,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-19 07:43:39,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-19 07:43:39,662 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_open [2022-11-19 07:43:39,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_open [2022-11-19 07:43:39,665 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_core [2022-11-19 07:43:39,665 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_core [2022-11-19 07:43:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-19 07:43:39,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-19 07:43:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 07:43:39,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 07:43:39,668 INFO L130 BoogieDeclarations]: Found specification of procedure alx_update_hw_stats [2022-11-19 07:43:39,669 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_update_hw_stats [2022-11-19 07:43:39,669 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_mem32 [2022-11-19 07:43:39,675 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_mem32 [2022-11-19 07:43:39,675 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 07:43:39,675 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 07:43:39,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-19 07:43:39,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-19 07:43:39,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:43:39,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-19 07:43:39,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-19 07:43:39,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-19 07:43:39,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-19 07:43:39,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-19 07:43:39,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-19 07:43:39,676 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_dbg [2022-11-19 07:43:39,676 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_dbg [2022-11-19 07:43:39,677 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-19 07:43:39,677 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-19 07:43:39,677 INFO L130 BoogieDeclarations]: Found specification of procedure alx_netif_stop [2022-11-19 07:43:39,677 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_netif_stop [2022-11-19 07:43:39,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:43:39,677 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-19 07:43:39,677 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-19 07:43:39,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 07:43:39,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 07:43:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 07:43:39,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 07:43:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:43:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 07:43:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_giga [2022-11-19 07:43:39,678 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_giga [2022-11-19 07:43:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure alx_poll_controller [2022-11-19 07:43:39,679 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_poll_controller [2022-11-19 07:43:39,679 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_pcie [2022-11-19 07:43:39,679 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_pcie [2022-11-19 07:43:39,679 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:43:39,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:43:39,679 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:43:39,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:43:39,679 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_is_locked [2022-11-19 07:43:39,679 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_is_locked [2022-11-19 07:43:39,680 INFO L130 BoogieDeclarations]: Found specification of procedure alx_schedule_reset [2022-11-19 07:43:39,680 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_schedule_reset [2022-11-19 07:43:39,680 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_legacy [2022-11-19 07:43:39,680 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_legacy [2022-11-19 07:43:39,680 INFO L130 BoogieDeclarations]: Found specification of procedure alx_refill_rx_ring [2022-11-19 07:43:39,680 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_refill_rx_ring [2022-11-19 07:43:39,680 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_dbg [2022-11-19 07:43:39,681 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_dbg [2022-11-19 07:43:39,681 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-19 07:43:39,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-19 07:43:39,681 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-19 07:43:39,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-19 07:43:39,681 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-19 07:43:39,681 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-19 07:43:39,681 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 07:43:39,682 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 07:43:39,682 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_macaddr [2022-11-19 07:43:39,682 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_macaddr [2022-11-19 07:43:39,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-19 07:43:39,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-19 07:43:39,682 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2022-11-19 07:43:39,682 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2022-11-19 07:43:39,682 INFO L130 BoogieDeclarations]: Found specification of procedure alx_speed_to_ethadv [2022-11-19 07:43:39,683 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_speed_to_ethadv [2022-11-19 07:43:39,683 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-19 07:43:39,683 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-19 07:43:39,683 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_rings [2022-11-19 07:43:39,683 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_rings [2022-11-19 07:43:39,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:43:39,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:43:39,683 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-19 07:43:39,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-19 07:43:39,684 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2022-11-19 07:43:39,684 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2022-11-19 07:43:39,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:43:39,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:43:39,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:43:39,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:43:39,684 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-11-19 07:43:39,685 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-11-19 07:43:39,685 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 07:43:39,685 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 07:43:39,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 07:43:39,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 07:43:39,685 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-19 07:43:39,685 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-19 07:43:39,685 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-19 07:43:39,686 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-19 07:43:39,686 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-19 07:43:39,686 INFO L130 BoogieDeclarations]: Found specification of procedure alx_open [2022-11-19 07:43:39,686 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_open [2022-11-19 07:43:39,686 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-19 07:43:39,686 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-19 07:43:39,686 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-19 07:43:39,686 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-19 07:43:39,688 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_with_cr [2022-11-19 07:43:39,688 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_with_cr [2022-11-19 07:43:39,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-19 07:43:39,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-19 07:43:39,688 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2022-11-19 07:43:39,688 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2022-11-19 07:43:39,689 INFO L130 BoogieDeclarations]: Found specification of procedure alx_get_supported_speeds [2022-11-19 07:43:39,689 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_get_supported_speeds [2022-11-19 07:43:39,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:43:39,689 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:43:39,689 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_macaddr [2022-11-19 07:43:39,689 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_macaddr [2022-11-19 07:43:39,689 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_mem32 [2022-11-19 07:43:39,689 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_mem32 [2022-11-19 07:43:39,690 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-19 07:43:39,690 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-19 07:43:39,690 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-19 07:43:39,690 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-19 07:43:39,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-19 07:43:39,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-19 07:43:39,690 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-11-19 07:43:39,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-11-19 07:43:39,691 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-19 07:43:39,692 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-19 07:43:39,695 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-19 07:43:39,695 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-19 07:43:39,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:43:39,696 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 07:43:39,696 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 07:43:39,696 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reinit_rings [2022-11-19 07:43:39,696 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reinit_rings [2022-11-19 07:43:39,696 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_reg [2022-11-19 07:43:39,696 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_reg [2022-11-19 07:43:39,697 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-19 07:43:39,697 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-19 07:43:39,697 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_buffers [2022-11-19 07:43:39,697 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_buffers [2022-11-19 07:43:39,698 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-19 07:43:39,698 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-19 07:43:39,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:43:39,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_lock_of_alx_priv [2022-11-19 07:43:39,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_lock_of_alx_priv [2022-11-19 07:43:39,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:43:39,698 INFO L130 BoogieDeclarations]: Found specification of procedure alx_wait_mdio_idle [2022-11-19 07:43:39,698 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_wait_mdio_idle [2022-11-19 07:43:39,698 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-19 07:43:39,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-19 07:43:39,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-19 07:43:39,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-19 07:43:39,699 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_handle [2022-11-19 07:43:39,699 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_handle [2022-11-19 07:43:39,699 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-19 07:43:39,699 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-19 07:43:39,699 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-19 07:43:39,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-19 07:43:39,700 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 07:43:39,700 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 07:43:39,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-19 07:43:39,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-19 07:43:39,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 07:43:39,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 07:43:39,700 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-19 07:43:39,701 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-19 07:43:39,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_lock_of_alx_priv [2022-11-19 07:43:39,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_lock_of_alx_priv [2022-11-19 07:43:39,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_88 [2022-11-19 07:43:39,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_88 [2022-11-19 07:43:39,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_alx_driver_exit_15_2 [2022-11-19 07:43:39,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_alx_driver_exit_15_2 [2022-11-19 07:43:39,701 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-19 07:43:39,702 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-19 07:43:39,702 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 07:43:39,702 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 07:43:39,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_63 [2022-11-19 07:43:39,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_63 [2022-11-19 07:43:39,702 INFO L130 BoogieDeclarations]: Found specification of procedure alx_is_rev_a [2022-11-19 07:43:39,702 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_is_rev_a [2022-11-19 07:43:39,702 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-19 07:43:39,702 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-19 07:43:39,703 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_core [2022-11-19 07:43:39,703 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_core [2022-11-19 07:43:39,703 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 07:43:39,703 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 07:43:39,703 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_ext [2022-11-19 07:43:39,703 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_ext [2022-11-19 07:43:39,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:43:39,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 07:43:39,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 07:43:39,704 INFO L130 BoogieDeclarations]: Found specification of procedure alx_post_phy_link [2022-11-19 07:43:39,704 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_post_phy_link [2022-11-19 07:43:39,704 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-19 07:43:39,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-19 07:43:39,704 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reinit [2022-11-19 07:43:39,704 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reinit [2022-11-19 07:43:39,704 INFO L130 BoogieDeclarations]: Found specification of procedure alx_tpd_avail [2022-11-19 07:43:39,704 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_tpd_avail [2022-11-19 07:43:39,705 INFO L130 BoogieDeclarations]: Found specification of procedure alx_setup_speed_duplex [2022-11-19 07:43:39,705 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_setup_speed_duplex [2022-11-19 07:43:39,705 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-19 07:43:39,705 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-19 07:43:39,705 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_stop [2022-11-19 07:43:39,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_stop [2022-11-19 07:43:39,705 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-19 07:43:39,705 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-19 07:43:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-19 07:43:39,706 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-19 07:43:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure alx_enable_aspm [2022-11-19 07:43:39,706 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_enable_aspm [2022-11-19 07:43:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_rx_mode [2022-11-19 07:43:39,706 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_rx_mode [2022-11-19 07:43:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_revision [2022-11-19 07:43:39,706 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_revision [2022-11-19 07:43:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_set_rx_mode [2022-11-19 07:43:39,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_set_rx_mode [2022-11-19 07:43:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_89 [2022-11-19 07:43:39,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_89 [2022-11-19 07:43:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_write_phy_reg [2022-11-19 07:43:39,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_write_phy_reg [2022-11-19 07:43:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-19 07:43:39,707 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-19 07:43:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-19 07:43:39,708 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-19 07:43:39,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 07:43:39,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 07:43:39,708 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-19 07:43:39,708 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-19 07:43:39,708 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-11-19 07:43:39,708 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-11-19 07:43:39,708 INFO L130 BoogieDeclarations]: Found specification of procedure alx_configure [2022-11-19 07:43:39,708 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_configure [2022-11-19 07:43:39,709 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_phy [2022-11-19 07:43:39,709 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_phy [2022-11-19 07:43:39,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2022-11-19 07:43:39,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2022-11-19 07:43:39,709 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-19 07:43:39,709 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-19 07:43:39,709 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-19 07:43:39,709 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-19 07:43:39,709 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-19 07:43:39,710 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-19 07:43:39,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:43:39,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 07:43:39,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 07:43:39,710 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le64 [2022-11-19 07:43:39,710 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le64 [2022-11-19 07:43:39,710 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_mac [2022-11-19 07:43:39,710 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_mac [2022-11-19 07:43:40,805 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:43:40,812 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:43:40,962 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 07:43:52,360 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-19 07:43:52,756 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:43:56,295 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:43:56,296 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-19 07:43:56,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:56 BoogieIcfgContainer [2022-11-19 07:43:56,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:43:56,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:43:56,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:43:56,315 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:43:56,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:43:32" (1/3) ... [2022-11-19 07:43:56,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1efce40a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:56, skipping insertion in model container [2022-11-19 07:43:56,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:38" (2/3) ... [2022-11-19 07:43:56,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1efce40a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:56, skipping insertion in model container [2022-11-19 07:43:56,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:56" (3/3) ... [2022-11-19 07:43:56,318 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i [2022-11-19 07:43:56,337 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:43:56,337 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-19 07:43:56,453 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:43:56,461 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;@305ae1be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:43:56,463 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-19 07:43:56,476 INFO L276 IsEmpty]: Start isEmpty. Operand has 2384 states, 1351 states have (on average 1.2672094744633604) internal successors, (1712), 1397 states have internal predecessors, (1712), 866 states have call successors, (866), 168 states have call predecessors, (866), 167 states have return successors, (857), 842 states have call predecessors, (857), 857 states have call successors, (857) [2022-11-19 07:43:56,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-11-19 07:43:56,509 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:43:56,510 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:43:56,514 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 07:43:56,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:43:56,523 INFO L85 PathProgramCache]: Analyzing trace with hash 863917759, now seen corresponding path program 1 times [2022-11-19 07:43:56,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:43:56,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094097476] [2022-11-19 07:43:56,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:43:56,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:43:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:43:57,896 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2022-11-19 07:43:57,898 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:43:57,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094097476] [2022-11-19 07:43:57,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094097476] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:43:57,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:43:57,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:43:57,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808481744] [2022-11-19 07:43:57,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:43:57,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:43:57,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:43:57,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:43:57,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:43:57,955 INFO L87 Difference]: Start difference. First operand has 2384 states, 1351 states have (on average 1.2672094744633604) internal successors, (1712), 1397 states have internal predecessors, (1712), 866 states have call successors, (866), 168 states have call predecessors, (866), 167 states have return successors, (857), 842 states have call predecessors, (857), 857 states have call successors, (857) Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-19 07:44:03,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:44:04,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:44:04,530 INFO L93 Difference]: Finished difference Result 6804 states and 10079 transitions. [2022-11-19 07:44:04,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:44:04,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 181 [2022-11-19 07:44:04,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:44:04,581 INFO L225 Difference]: With dead ends: 6804 [2022-11-19 07:44:04,581 INFO L226 Difference]: Without dead ends: 4440 [2022-11-19 07:44:04,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:44:04,604 INFO L413 NwaCegarLoop]: 3693 mSDtfsCounter, 3023 mSDsluCounter, 2912 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3023 SdHoareTripleChecker+Valid, 6605 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:44:04,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3023 Valid, 6605 Invalid, 895 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 887 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-11-19 07:44:04,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4440 states. [2022-11-19 07:44:04,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4440 to 4435. [2022-11-19 07:44:04,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4435 states, 2524 states have (on average 1.2591125198098256) internal successors, (3178), 2603 states have internal predecessors, (3178), 1587 states have call successors, (1587), 322 states have call predecessors, (1587), 321 states have return successors, (1583), 1561 states have call predecessors, (1583), 1583 states have call successors, (1583) [2022-11-19 07:44:04,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4435 states to 4435 states and 6348 transitions. [2022-11-19 07:44:04,985 INFO L78 Accepts]: Start accepts. Automaton has 4435 states and 6348 transitions. Word has length 181 [2022-11-19 07:44:04,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:44:04,989 INFO L495 AbstractCegarLoop]: Abstraction has 4435 states and 6348 transitions. [2022-11-19 07:44:04,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-19 07:44:04,989 INFO L276 IsEmpty]: Start isEmpty. Operand 4435 states and 6348 transitions. [2022-11-19 07:44:05,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-19 07:44:05,001 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:44:05,001 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:44:05,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:44:05,002 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 07:44:05,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:44:05,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1509179341, now seen corresponding path program 1 times [2022-11-19 07:44:05,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:44:05,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424222672] [2022-11-19 07:44:05,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:44:05,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:44:05,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:44:06,571 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2022-11-19 07:44:06,575 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:44:06,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424222672] [2022-11-19 07:44:06,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424222672] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:44:06,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:44:06,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 07:44:06,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792971515] [2022-11-19 07:44:06,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:44:06,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:44:06,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:44:06,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:44:06,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:44:06,580 INFO L87 Difference]: Start difference. First operand 4435 states and 6348 transitions. Second operand has 6 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-19 07:44:11,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:44:15,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:44:17,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:44:25,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:44:25,064 INFO L93 Difference]: Finished difference Result 12000 states and 17055 transitions. [2022-11-19 07:44:25,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:44:25,065 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 182 [2022-11-19 07:44:25,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:44:25,116 INFO L225 Difference]: With dead ends: 12000 [2022-11-19 07:44:25,116 INFO L226 Difference]: Without dead ends: 7598 [2022-11-19 07:44:25,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:44:25,137 INFO L413 NwaCegarLoop]: 4301 mSDtfsCounter, 10924 mSDsluCounter, 5242 mSDsCounter, 0 mSdLazyCounter, 3553 mSolverCounterSat, 5641 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11068 SdHoareTripleChecker+Valid, 9543 SdHoareTripleChecker+Invalid, 9196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5641 IncrementalHoareTripleChecker+Valid, 3553 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:44:25,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11068 Valid, 9543 Invalid, 9196 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5641 Valid, 3553 Invalid, 2 Unknown, 0 Unchecked, 17.6s Time] [2022-11-19 07:44:25,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7598 states. [2022-11-19 07:44:25,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7598 to 7516. [2022-11-19 07:44:25,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7516 states, 4253 states have (on average 1.2532330119915354) internal successors, (5330), 4396 states have internal predecessors, (5330), 2650 states have call successors, (2650), 613 states have call predecessors, (2650), 610 states have return successors, (2650), 2592 states have call predecessors, (2650), 2646 states have call successors, (2650) [2022-11-19 07:44:25,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7516 states to 7516 states and 10630 transitions. [2022-11-19 07:44:25,631 INFO L78 Accepts]: Start accepts. Automaton has 7516 states and 10630 transitions. Word has length 182 [2022-11-19 07:44:25,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:44:25,631 INFO L495 AbstractCegarLoop]: Abstraction has 7516 states and 10630 transitions. [2022-11-19 07:44:25,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-19 07:44:25,633 INFO L276 IsEmpty]: Start isEmpty. Operand 7516 states and 10630 transitions. [2022-11-19 07:44:25,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-19 07:44:25,639 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:44:25,640 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:44:25,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:44:25,643 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 07:44:25,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:44:25,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1898253301, now seen corresponding path program 1 times [2022-11-19 07:44:25,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:44:25,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387488873] [2022-11-19 07:44:25,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:44:25,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:44:25,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:44:26,209 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2022-11-19 07:44:26,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:44:26,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387488873] [2022-11-19 07:44:26,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387488873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:44:26,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:44:26,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:44:26,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3459632] [2022-11-19 07:44:26,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:44:26,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:44:26,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:44:26,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:44:26,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:44:26,212 INFO L87 Difference]: Start difference. First operand 7516 states and 10630 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-19 07:44:29,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:44:31,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:44:33,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:44:33,563 INFO L93 Difference]: Finished difference Result 22235 states and 31551 transitions. [2022-11-19 07:44:33,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:44:33,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 192 [2022-11-19 07:44:33,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:44:33,687 INFO L225 Difference]: With dead ends: 22235 [2022-11-19 07:44:33,687 INFO L226 Difference]: Without dead ends: 14752 [2022-11-19 07:44:33,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:44:33,741 INFO L413 NwaCegarLoop]: 4083 mSDtfsCounter, 3052 mSDsluCounter, 2945 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3052 SdHoareTripleChecker+Valid, 7028 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:44:33,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3052 Valid, 7028 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 949 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-11-19 07:44:33,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14752 states. [2022-11-19 07:44:34,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14752 to 14712. [2022-11-19 07:44:34,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14712 states, 8338 states have (on average 1.252698488846246) internal successors, (10445), 8618 states have internal predecessors, (10445), 5168 states have call successors, (5168), 1208 states have call predecessors, (5168), 1203 states have return successors, (5288), 5056 states have call predecessors, (5288), 5164 states have call successors, (5288) [2022-11-19 07:44:34,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14712 states to 14712 states and 20901 transitions. [2022-11-19 07:44:34,998 INFO L78 Accepts]: Start accepts. Automaton has 14712 states and 20901 transitions. Word has length 192 [2022-11-19 07:44:35,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:44:35,000 INFO L495 AbstractCegarLoop]: Abstraction has 14712 states and 20901 transitions. [2022-11-19 07:44:35,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-19 07:44:35,001 INFO L276 IsEmpty]: Start isEmpty. Operand 14712 states and 20901 transitions. [2022-11-19 07:44:35,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-19 07:44:35,005 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:44:35,006 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:44:35,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:44:35,006 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 07:44:35,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:44:35,007 INFO L85 PathProgramCache]: Analyzing trace with hash 209923849, now seen corresponding path program 1 times [2022-11-19 07:44:35,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:44:35,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472357774] [2022-11-19 07:44:35,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:44:35,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:44:35,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:44:35,594 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2022-11-19 07:44:35,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:44:35,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472357774] [2022-11-19 07:44:35,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472357774] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:44:35,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:44:35,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:44:35,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204451676] [2022-11-19 07:44:35,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:44:35,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:44:35,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:44:35,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:44:35,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:44:35,597 INFO L87 Difference]: Start difference. First operand 14712 states and 20901 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-19 07:44:38,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:44:43,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:44:43,079 INFO L93 Difference]: Finished difference Result 43737 states and 62487 transitions. [2022-11-19 07:44:43,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:44:43,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 192 [2022-11-19 07:44:43,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:44:43,273 INFO L225 Difference]: With dead ends: 43737 [2022-11-19 07:44:43,273 INFO L226 Difference]: Without dead ends: 29058 [2022-11-19 07:44:43,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:44:43,359 INFO L413 NwaCegarLoop]: 4093 mSDtfsCounter, 3057 mSDsluCounter, 2945 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3057 SdHoareTripleChecker+Valid, 7038 SdHoareTripleChecker+Invalid, 960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:44:43,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3057 Valid, 7038 Invalid, 960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 954 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-11-19 07:44:43,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29058 states. [2022-11-19 07:44:45,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29058 to 29011. [2022-11-19 07:44:45,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29011 states, 16462 states have (on average 1.252156481593974) internal successors, (20613), 17015 states have internal predecessors, (20613), 10173 states have call successors, (10173), 2382 states have call predecessors, (10173), 2373 states have return successors, (10757), 9954 states have call predecessors, (10757), 10169 states have call successors, (10757) [2022-11-19 07:44:45,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29011 states to 29011 states and 41543 transitions. [2022-11-19 07:44:45,673 INFO L78 Accepts]: Start accepts. Automaton has 29011 states and 41543 transitions. Word has length 192 [2022-11-19 07:44:45,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:44:45,674 INFO L495 AbstractCegarLoop]: Abstraction has 29011 states and 41543 transitions. [2022-11-19 07:44:45,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-19 07:44:45,674 INFO L276 IsEmpty]: Start isEmpty. Operand 29011 states and 41543 transitions. [2022-11-19 07:44:45,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-11-19 07:44:45,678 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:44:45,679 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:44:45,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:44:45,679 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 07:44:45,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:44:45,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1985746886, now seen corresponding path program 1 times [2022-11-19 07:44:45,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:44:45,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118446593] [2022-11-19 07:44:45,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:44:45,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:44:45,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:44:46,170 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2022-11-19 07:44:46,171 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:44:46,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118446593] [2022-11-19 07:44:46,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118446593] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:44:46,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:44:46,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:44:46,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653061597] [2022-11-19 07:44:46,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:44:46,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:44:46,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:44:46,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:44:46,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:44:46,173 INFO L87 Difference]: Start difference. First operand 29011 states and 41543 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-19 07:44:50,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:44:52,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:44:56,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:44:56,418 INFO L93 Difference]: Finished difference Result 84846 states and 120997 transitions. [2022-11-19 07:44:56,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:44:56,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 193 [2022-11-19 07:44:56,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:44:56,951 INFO L225 Difference]: With dead ends: 84846 [2022-11-19 07:44:56,951 INFO L226 Difference]: Without dead ends: 55868 [2022-11-19 07:44:57,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:44:57,109 INFO L413 NwaCegarLoop]: 4090 mSDtfsCounter, 2871 mSDsluCounter, 2863 mSDsCounter, 0 mSdLazyCounter, 1058 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2871 SdHoareTripleChecker+Valid, 6953 SdHoareTripleChecker+Invalid, 1088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1058 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:44:57,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2871 Valid, 6953 Invalid, 1088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1058 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2022-11-19 07:44:57,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55868 states. [2022-11-19 07:45:00,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55868 to 55805. [2022-11-19 07:45:00,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55805 states, 31446 states have (on average 1.2375818864084462) internal successors, (38917), 32581 states have internal predecessors, (38917), 19639 states have call successors, (19639), 4734 states have call predecessors, (19639), 4717 states have return successors, (20423), 19170 states have call predecessors, (20423), 19635 states have call successors, (20423) [2022-11-19 07:45:01,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55805 states to 55805 states and 78979 transitions. [2022-11-19 07:45:01,491 INFO L78 Accepts]: Start accepts. Automaton has 55805 states and 78979 transitions. Word has length 193 [2022-11-19 07:45:01,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:45:01,496 INFO L495 AbstractCegarLoop]: Abstraction has 55805 states and 78979 transitions. [2022-11-19 07:45:01,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-19 07:45:01,496 INFO L276 IsEmpty]: Start isEmpty. Operand 55805 states and 78979 transitions. [2022-11-19 07:45:01,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-19 07:45:01,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:45:01,500 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:45:01,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:45:01,501 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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 07:45:01,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:45:01,501 INFO L85 PathProgramCache]: Analyzing trace with hash 919061215, now seen corresponding path program 1 times [2022-11-19 07:45:01,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:45:01,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928447463] [2022-11-19 07:45:01,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:45:01,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:45:01,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:45:02,239 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2022-11-19 07:45:02,239 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:45:02,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928447463] [2022-11-19 07:45:02,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928447463] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:45:02,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:45:02,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:45:02,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338112437] [2022-11-19 07:45:02,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:45:02,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:45:02,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:45:02,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:45:02,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:45:02,242 INFO L87 Difference]: Start difference. First operand 55805 states and 78979 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-19 07:45:06,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:45:09,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:45:12,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:45:12,359 INFO L93 Difference]: Finished difference Result 143997 states and 203420 transitions. [2022-11-19 07:45:12,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:45:12,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 192 [2022-11-19 07:45:12,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:45:12,809 INFO L225 Difference]: With dead ends: 143997 [2022-11-19 07:45:12,810 INFO L226 Difference]: Without dead ends: 88225 [2022-11-19 07:45:13,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:45:13,023 INFO L413 NwaCegarLoop]: 3988 mSDtfsCounter, 2770 mSDsluCounter, 2879 mSDsCounter, 0 mSdLazyCounter, 990 mSolverCounterSat, 18 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2770 SdHoareTripleChecker+Valid, 6867 SdHoareTripleChecker+Invalid, 1010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 990 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:45:13,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2770 Valid, 6867 Invalid, 1010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 990 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2022-11-19 07:45:13,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88225 states. [2022-11-19 07:45:17,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88225 to 88145. [2022-11-19 07:45:18,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88145 states, 49952 states have (on average 1.2269778987828315) internal successors, (61290), 51627 states have internal predecessors, (61290), 30655 states have call successors, (30655), 7584 states have call predecessors, (30655), 7535 states have return successors, (31940), 29927 states have call predecessors, (31940), 30651 states have call successors, (31940) [2022-11-19 07:45:18,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88145 states to 88145 states and 123885 transitions. [2022-11-19 07:45:18,642 INFO L78 Accepts]: Start accepts. Automaton has 88145 states and 123885 transitions. Word has length 192 [2022-11-19 07:45:18,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:45:18,642 INFO L495 AbstractCegarLoop]: Abstraction has 88145 states and 123885 transitions. [2022-11-19 07:45:18,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-19 07:45:18,643 INFO L276 IsEmpty]: Start isEmpty. Operand 88145 states and 123885 transitions. [2022-11-19 07:45:18,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-11-19 07:45:18,647 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:45:18,648 INFO L195 NwaCegarLoop]: trace histogram [18, 16, 16, 16, 16, 16, 16, 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] [2022-11-19 07:45:18,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:45:18,648 INFO L420 AbstractCegarLoop]: === Iteration 7 === 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 07:45:18,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:45:18,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1747169362, now seen corresponding path program 1 times [2022-11-19 07:45:18,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:45:18,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030553388] [2022-11-19 07:45:18,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:45:18,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:45:18,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:45:19,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1034 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1026 trivial. 0 not checked. [2022-11-19 07:45:19,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:45:19,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030553388] [2022-11-19 07:45:19,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030553388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:45:19,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:45:19,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 07:45:19,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261927473] [2022-11-19 07:45:19,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:45:19,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:45:19,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:45:19,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:45:19,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:45:19,982 INFO L87 Difference]: Start difference. First operand 88145 states and 123885 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-19 07:45:28,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:45:33,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:45:35,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:45:38,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:45:48,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:45:48,519 INFO L93 Difference]: Finished difference Result 302518 states and 425861 transitions. [2022-11-19 07:45:48,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:45:48,527 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 214 [2022-11-19 07:45:48,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:45:49,984 INFO L225 Difference]: With dead ends: 302518 [2022-11-19 07:45:49,984 INFO L226 Difference]: Without dead ends: 214406 [2022-11-19 07:45:50,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:45:50,271 INFO L413 NwaCegarLoop]: 5201 mSDtfsCounter, 7803 mSDsluCounter, 7757 mSDsCounter, 0 mSdLazyCounter, 4904 mSolverCounterSat, 1342 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8033 SdHoareTripleChecker+Valid, 12958 SdHoareTripleChecker+Invalid, 6248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1342 IncrementalHoareTripleChecker+Valid, 4904 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:45:50,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8033 Valid, 12958 Invalid, 6248 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1342 Valid, 4904 Invalid, 2 Unknown, 0 Unchecked, 19.4s Time] [2022-11-19 07:45:50,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214406 states.