./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3593b8a1-c8d2-4ba2-a638-35821554bfec/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3593b8a1-c8d2-4ba2-a638-35821554bfec/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3593b8a1-c8d2-4ba2-a638-35821554bfec/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3593b8a1-c8d2-4ba2-a638-35821554bfec/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3593b8a1-c8d2-4ba2-a638-35821554bfec/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3593b8a1-c8d2-4ba2-a638-35821554bfec/bin/utaipan-g80aRyZoba --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 1b84ae01ff77d37e9299320c753590c425a9f784ed44d0a112a3afe6584a446b --- 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-b5237d8 [2022-11-22 00:35:57,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:35:57,473 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:35:57,500 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:35:57,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:35:57,506 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:35:57,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:35:57,512 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:35:57,515 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:35:57,520 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:35:57,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:35:57,524 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:35:57,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:35:57,528 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:35:57,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:35:57,532 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:35:57,534 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:35:57,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:35:57,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:35:57,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:35:57,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:35:57,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:35:57,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:35:57,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:35:57,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:35:57,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:35:57,547 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:35:57,548 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:35:57,549 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:35:57,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:35:57,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:35:57,551 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:35:57,552 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:35:57,553 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:35:57,554 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:35:57,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:35:57,556 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:35:57,556 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:35:57,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:35:57,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:35:57,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:35:57,560 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3593b8a1-c8d2-4ba2-a638-35821554bfec/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 00:35:57,593 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:35:57,593 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:35:57,594 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:35:57,594 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:35:57,595 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:35:57,595 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:35:57,596 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:35:57,596 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:35:57,596 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:35:57,596 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:35:57,598 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:35:57,598 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:35:57,598 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:35:57,598 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:35:57,599 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:35:57,599 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:35:57,599 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:35:57,600 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:35:57,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:35:57,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:35:57,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:35:57,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:35:57,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:35:57,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:35:57,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:35:57,603 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:35:57,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:35:57,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:35:57,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:35:57,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:35:57,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:35:57,605 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:35:57,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:35:57,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:35:57,606 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:35:57,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:35:57,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:35:57,607 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:35:57,608 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_3593b8a1-c8d2-4ba2-a638-35821554bfec/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3593b8a1-c8d2-4ba2-a638-35821554bfec/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b84ae01ff77d37e9299320c753590c425a9f784ed44d0a112a3afe6584a446b [2022-11-22 00:35:57,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:35:57,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:35:57,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:35:57,928 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:35:57,929 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:35:57,930 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3593b8a1-c8d2-4ba2-a638-35821554bfec/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-22 00:36:00,963 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:36:01,928 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:36:01,929 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3593b8a1-c8d2-4ba2-a638-35821554bfec/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-22 00:36:02,084 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3593b8a1-c8d2-4ba2-a638-35821554bfec/bin/utaipan-g80aRyZoba/data/220c274da/ef01db61b5dd4f9b9f47cabff5eefda9/FLAG830774182 [2022-11-22 00:36:02,114 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3593b8a1-c8d2-4ba2-a638-35821554bfec/bin/utaipan-g80aRyZoba/data/220c274da/ef01db61b5dd4f9b9f47cabff5eefda9 [2022-11-22 00:36:02,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:36:02,122 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:36:02,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:36:02,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:36:02,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:36:02,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:36:02" (1/1) ... [2022-11-22 00:36:02,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e2c3f14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:36:02, skipping insertion in model container [2022-11-22 00:36:02,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:36:02" (1/1) ... [2022-11-22 00:36:02,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:36:02,427 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:36:12,239 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3593b8a1-c8d2-4ba2-a638-35821554bfec/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945328,945341] [2022-11-22 00:36:12,250 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3593b8a1-c8d2-4ba2-a638-35821554bfec/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945497,945510] [2022-11-22 00:36:12,251 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3593b8a1-c8d2-4ba2-a638-35821554bfec/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945664,945677] [2022-11-22 00:36:12,252 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3593b8a1-c8d2-4ba2-a638-35821554bfec/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945832,945845] [2022-11-22 00:36:12,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:36:12,392 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:36:13,472 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3593b8a1-c8d2-4ba2-a638-35821554bfec/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945328,945341] [2022-11-22 00:36:13,473 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3593b8a1-c8d2-4ba2-a638-35821554bfec/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945497,945510] [2022-11-22 00:36:13,474 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3593b8a1-c8d2-4ba2-a638-35821554bfec/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945664,945677] [2022-11-22 00:36:13,474 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3593b8a1-c8d2-4ba2-a638-35821554bfec/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[945832,945845] [2022-11-22 00:36:13,484 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:36:13,943 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:36:13,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:36:13 WrapperNode [2022-11-22 00:36:13,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:36:13,945 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:36:13,945 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:36:13,945 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:36:13,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:36:13" (1/1) ... [2022-11-22 00:36:14,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:36:13" (1/1) ... [2022-11-22 00:36:15,278 INFO L138 Inliner]: procedures = 856, calls = 16466, calls flagged for inlining = 419, calls inlined = 352, statements flattened = 29101 [2022-11-22 00:36:15,279 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:36:15,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:36:15,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:36:15,280 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:36:15,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:36:13" (1/1) ... [2022-11-22 00:36:15,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:36:13" (1/1) ... [2022-11-22 00:36:15,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:36:13" (1/1) ... [2022-11-22 00:36:15,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:36:13" (1/1) ... [2022-11-22 00:36:16,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:36:13" (1/1) ... [2022-11-22 00:36:16,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:36:13" (1/1) ... [2022-11-22 00:36:16,551 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:36:13" (1/1) ... [2022-11-22 00:36:16,588 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:36:13" (1/1) ... [2022-11-22 00:36:16,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:36:16,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:36:16,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:36:16,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:36:16,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:36:13" (1/1) ... [2022-11-22 00:36:16,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:36:16,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3593b8a1-c8d2-4ba2-a638-35821554bfec/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:36:16,814 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3593b8a1-c8d2-4ba2-a638-35821554bfec/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:36:16,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3593b8a1-c8d2-4ba2-a638-35821554bfec/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:36:16,984 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_fc_after_link_up [2022-11-22 00:36:16,985 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_fc_after_link_up [2022-11-22 00:36:16,985 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-22 00:36:16,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-22 00:36:16,985 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_collision_dist [2022-11-22 00:36:16,986 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_collision_dist [2022-11-22 00:36:16,986 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_ee_clk [2022-11-22 00:36:16,986 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_ee_clk [2022-11-22 00:36:16,986 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-22 00:36:16,986 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-22 00:36:16,987 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-22 00:36:16,987 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-22 00:36:16,987 INFO L130 BoogieDeclarations]: Found specification of procedure reg_pattern_test [2022-11-22 00:36:16,987 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_pattern_test [2022-11-22 00:36:16,987 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-22 00:36:16,987 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-22 00:36:16,988 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-22 00:36:16,988 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-22 00:36:16,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 00:36:16,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 00:36:16,988 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_unmap_and_free_tx_resource [2022-11-22 00:36:16,989 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_unmap_and_free_tx_resource [2022-11-22 00:36:16,989 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 00:36:16,989 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 00:36:16,989 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-22 00:36:16,989 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-22 00:36:16,990 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_rctl [2022-11-22 00:36:16,990 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_rctl [2022-11-22 00:36:16,990 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-22 00:36:16,990 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-22 00:36:16,990 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2022-11-22 00:36:16,991 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2022-11-22 00:36:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset [2022-11-22 00:36:16,991 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset [2022-11-22 00:36:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2022-11-22 00:36:16,991 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2022-11-22 00:36:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-22 00:36:16,992 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-22 00:36:16,992 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 00:36:16,992 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 00:36:16,992 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-22 00:36:16,992 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-22 00:36:16,992 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-22 00:36:16,993 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-22 00:36:16,993 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg [2022-11-22 00:36:16,993 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg [2022-11-22 00:36:16,993 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_speed_and_duplex [2022-11-22 00:36:16,993 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_speed_and_duplex [2022-11-22 00:36:16,994 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2022-11-22 00:36:16,994 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2022-11-22 00:36:16,994 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-22 00:36:16,994 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-22 00:36:16,994 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-22 00:36:16,995 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-22 00:36:16,995 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-22 00:36:16,995 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-22 00:36:16,995 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link [2022-11-22 00:36:16,995 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link [2022-11-22 00:36:16,995 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_irq [2022-11-22 00:36:16,996 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_irq [2022-11-22 00:36:16,996 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-22 00:36:16,996 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-22 00:36:16,996 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_vlan_mode [2022-11-22 00:36:16,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_vlan_mode [2022-11-22 00:36:16,997 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 00:36:16,997 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 00:36:16,997 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_dsp_after_link_change [2022-11-22 00:36:16,997 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_dsp_after_link_change [2022-11-22 00:36:16,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 00:36:16,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 00:36:16,998 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_maybe_stop_tx [2022-11-22 00:36:16,998 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_maybe_stop_tx [2022-11-22 00:36:16,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 00:36:16,998 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2022-11-22 00:36:16,998 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2022-11-22 00:36:16,999 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_used [2022-11-22 00:36:16,999 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_used [2022-11-22 00:36:16,999 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_force_mac_fc [2022-11-22 00:36:16,999 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_force_mac_fc [2022-11-22 00:36:16,999 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-22 00:36:17,000 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-22 00:36:17,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 00:36:17,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 00:36:17,000 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_leave_82542_rst [2022-11-22 00:36:17,000 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_leave_82542_rst [2022-11-22 00:36:17,000 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 00:36:17,001 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 00:36:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_tx_resources [2022-11-22 00:36:17,001 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_tx_resources [2022-11-22 00:36:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-22 00:36:17,001 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-22 00:36:17,002 INFO L130 BoogieDeclarations]: Found specification of procedure reg_set_and_check [2022-11-22 00:36:17,002 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_set_and_check [2022-11-22 00:36:17,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-22 00:36:17,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-22 00:36:17,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 00:36:17,002 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_netpoll [2022-11-22 00:36:17,003 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_netpoll [2022-11-22 00:36:17,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:36:17,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 00:36:17,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 00:36:17,003 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 00:36:17,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 00:36:17,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 00:36:17,004 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_rx_mode [2022-11-22 00:36:17,004 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_rx_mode [2022-11-22 00:36:17,004 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-22 00:36:17,005 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-22 00:36:17,005 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-22 00:36:17,005 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_hw_reset [2022-11-22 00:36:17,005 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_hw_reset [2022-11-22 00:36:17,005 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 00:36:17,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-22 00:36:17,006 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_ee_bits [2022-11-22 00:36:17,006 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_ee_bits [2022-11-22 00:36:17,006 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 00:36:17,006 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 00:36:17,006 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_ee_clk [2022-11-22 00:36:17,007 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_ee_clk [2022-11-22 00:36:17,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-22 00:36:17,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-22 00:36:17,007 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2022-11-22 00:36:17,007 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2022-11-22 00:36:17,008 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2022-11-22 00:36:17,008 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2022-11-22 00:36:17,008 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-22 00:36:17,008 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-22 00:36:17,008 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom [2022-11-22 00:36:17,008 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom [2022-11-22 00:36:17,009 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_enter_82542_rst [2022-11-22 00:36:17,009 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_enter_82542_rst [2022-11-22 00:36:17,009 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-11-22 00:36:17,009 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-11-22 00:36:17,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:36:17,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:36:17,010 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_down_phy [2022-11-22 00:36:17,010 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_down_phy [2022-11-22 00:36:17,010 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2022-11-22 00:36:17,010 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2022-11-22 00:36:17,010 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_spi_eeprom_ready [2022-11-22 00:36:17,011 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_spi_eeprom_ready [2022-11-22 00:36:17,011 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_clear_mwi [2022-11-22 00:36:17,011 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_clear_mwi [2022-11-22 00:36:17,011 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-22 00:36:17,011 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-22 00:36:17,011 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_up_phy [2022-11-22 00:36:17,012 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_up_phy [2022-11-22 00:36:17,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 00:36:17,012 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-22 00:36:17,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-22 00:36:17,012 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg_ex [2022-11-22 00:36:17,012 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg_ex [2022-11-22 00:36:17,013 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-22 00:36:17,013 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-22 00:36:17,013 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-22 00:36:17,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-22 00:36:17,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-22 00:36:17,013 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_resume [2022-11-22 00:36:17,014 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_resume [2022-11-22 00:36:17,014 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-22 00:36:17,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-22 00:36:17,014 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-22 00:36:17,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-22 00:36:17,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 00:36:17,015 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 00:36:17,015 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_mdi_clk [2022-11-22 00:36:17,015 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_mdi_clk [2022-11-22 00:36:17,015 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_mac_to_phy [2022-11-22 00:36:17,015 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_mac_to_phy [2022-11-22 00:36:17,016 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-11-22 00:36:17,016 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-11-22 00:36:17,016 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-22 00:36:17,016 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-22 00:36:17,016 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset_clk_and_crs [2022-11-22 00:36:17,016 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset_clk_and_crs [2022-11-22 00:36:17,017 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-22 00:36:17,017 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-22 00:36:17,017 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-22 00:36:17,017 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-22 00:36:17,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:36:17,017 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 00:36:17,018 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 00:36:17,018 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_regs_len [2022-11-22 00:36:17,018 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_regs_len [2022-11-22 00:36:17,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 00:36:17,018 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-22 00:36:17,018 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-22 00:36:17,019 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_tx_resources [2022-11-22 00:36:17,019 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_tx_resources [2022-11-22 00:36:17,019 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_setup_autoneg [2022-11-22 00:36:17,019 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_setup_autoneg [2022-11-22 00:36:17,019 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_mng_vlan [2022-11-22 00:36:17,019 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_mng_vlan [2022-11-22 00:36:17,020 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_filter_on_off [2022-11-22 00:36:17,020 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_filter_on_off [2022-11-22 00:36:17,020 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-22 00:36:17,020 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-22 00:36:17,020 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_nway_reset [2022-11-22 00:36:17,021 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_nway_reset [2022-11-22 00:36:17,021 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 00:36:17,021 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 00:36:17,021 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-22 00:36:17,021 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-22 00:36:17,021 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_all_rx_rings [2022-11-22 00:36:17,022 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_all_rx_rings [2022-11-22 00:36:17,022 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reinit_locked [2022-11-22 00:36:17,022 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reinit_locked [2022-11-22 00:36:17,022 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2022-11-22 00:36:17,022 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2022-11-22 00:36:17,022 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_phy_reg [2022-11-22 00:36:17,023 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_phy_reg [2022-11-22 00:36:17,023 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_rx_resources [2022-11-22 00:36:17,023 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_rx_resources [2022-11-22 00:36:17,023 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-22 00:36:17,023 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-22 00:36:17,023 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_copper_link_rtl_setup [2022-11-22 00:36:17,024 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_copper_link_rtl_setup [2022-11-22 00:36:17,024 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_desc_rings [2022-11-22 00:36:17,024 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_desc_rings [2022-11-22 00:36:17,024 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-22 00:36:17,024 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-22 00:36:17,024 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 00:36:17,025 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 00:36:17,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:36:17,025 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_64k_bound [2022-11-22 00:36:17,025 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_64k_bound [2022-11-22 00:36:17,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 00:36:17,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 00:36:17,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_88 [2022-11-22 00:36:17,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_88 [2022-11-22 00:36:17,026 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_request_irq [2022-11-22 00:36:17,026 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_request_irq [2022-11-22 00:36:17,026 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-22 00:36:17,027 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-22 00:36:17,027 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_eeprom [2022-11-22 00:36:17,027 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_eeprom [2022-11-22 00:36:17,027 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw [2022-11-22 00:36:17,027 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw [2022-11-22 00:36:17,027 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_disable [2022-11-22 00:36:17,028 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_disable [2022-11-22 00:36:17,028 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-22 00:36:17,028 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-22 00:36:17,028 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_tx_ring [2022-11-22 00:36:17,028 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_tx_ring [2022-11-22 00:36:17,028 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-22 00:36:17,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-22 00:36:17,029 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_manageability [2022-11-22 00:36:17,029 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_manageability [2022-11-22 00:36:17,029 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-22 00:36:17,029 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-22 00:36:17,030 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-22 00:36:17,030 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-22 00:36:17,030 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-22 00:36:17,030 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-11-22 00:36:17,030 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-11-22 00:36:17,030 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_rx_ring [2022-11-22 00:36:17,031 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_rx_ring [2022-11-22 00:36:17,031 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-22 00:36:17,031 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-22 00:36:17,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_91 [2022-11-22 00:36:17,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_91 [2022-11-22 00:36:17,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 00:36:17,032 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 00:36:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_82 [2022-11-22 00:36:17,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_82 [2022-11-22 00:36:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-22 00:36:17,032 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-22 00:36:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_eeprom [2022-11-22 00:36:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_eeprom [2022-11-22 00:36:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 00:36:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 00:36:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_manageability [2022-11-22 00:36:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_manageability [2022-11-22 00:36:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_in_ee_bits [2022-11-22 00:36:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_in_ee_bits [2022-11-22 00:36:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down_and_stop [2022-11-22 00:36:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down_and_stop [2022-11-22 00:36:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-22 00:36:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-22 00:36:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2022-11-22 00:36:17,035 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2022-11-22 00:36:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-22 00:36:17,035 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-22 00:36:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-22 00:36:17,035 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-22 00:36:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_get_info [2022-11-22 00:36:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_get_info [2022-11-22 00:36:17,036 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_do_read_eeprom [2022-11-22 00:36:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_do_read_eeprom [2022-11-22 00:36:17,036 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set [2022-11-22 00:36:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set [2022-11-22 00:36:17,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_83 [2022-11-22 00:36:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_83 [2022-11-22 00:36:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_eeprom_params [2022-11-22 00:36:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_eeprom_params [2022-11-22 00:36:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2022-11-22 00:36:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2022-11-22 00:36:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 00:36:17,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 00:36:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-22 00:36:17,038 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-22 00:36:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 00:36:17,038 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 00:36:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 00:36:17,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 00:36:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-22 00:36:17,039 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-22 00:36:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:36:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_standby_eeprom [2022-11-22 00:36:17,039 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_standby_eeprom [2022-11-22 00:36:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure_rx [2022-11-22 00:36:17,040 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure_rx [2022-11-22 00:36:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_hw_dev [2022-11-22 00:36:17,040 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_hw_dev [2022-11-22 00:36:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_stats [2022-11-22 00:36:17,041 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_stats [2022-11-22 00:36:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_validate_option [2022-11-22 00:36:17,041 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_validate_option [2022-11-22 00:36:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 00:36:17,041 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 00:36:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 00:36:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_link [2022-11-22 00:36:17,042 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_link [2022-11-22 00:36:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset [2022-11-22 00:36:17,042 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset [2022-11-22 00:36:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 00:36:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 00:36:17,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 00:36:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shutdown [2022-11-22 00:36:17,043 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shutdown [2022-11-22 00:36:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 00:36:17,043 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 00:36:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_disable_receiver [2022-11-22 00:36:17,044 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_disable_receiver [2022-11-22 00:36:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_kill_vid [2022-11-22 00:36:17,044 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_kill_vid [2022-11-22 00:36:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-22 00:36:17,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-22 00:36:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 00:36:17,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 00:36:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-11-22 00:36:17,045 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-11-22 00:36:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_has_link [2022-11-22 00:36:17,045 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_has_link [2022-11-22 00:36:17,045 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-22 00:36:17,046 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-22 00:36:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-11-22 00:36:17,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-11-22 00:36:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure pci_wake_from_d3 [2022-11-22 00:36:17,046 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_wake_from_d3 [2022-11-22 00:36:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-22 00:36:17,047 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-22 00:36:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-22 00:36:17,047 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-22 00:36:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 00:36:17,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 00:36:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_open [2022-11-22 00:36:17,048 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_open [2022-11-22 00:36:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-22 00:36:17,048 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-22 00:36:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_vfta [2022-11-22 00:36:17,048 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_vfta [2022-11-22 00:36:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_remove [2022-11-22 00:36:17,049 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_remove [2022-11-22 00:36:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure [2022-11-22 00:36:17,049 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure [2022-11-22 00:36:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-22 00:36:17,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-22 00:36:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-22 00:36:17,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-22 00:36:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-22 00:36:17,050 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-22 00:36:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_cable_length [2022-11-22 00:36:17,050 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_cable_length [2022-11-22 00:36:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-22 00:36:17,051 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-22 00:36:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_rx_resources [2022-11-22 00:36:17,051 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_rx_resources [2022-11-22 00:36:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_add_vid [2022-11-22 00:36:17,051 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_add_vid [2022-11-22 00:36:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-22 00:36:17,052 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-22 00:36:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_write [2022-11-22 00:36:17,052 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_write [2022-11-22 00:36:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-22 00:36:17,052 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-22 00:36:17,053 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_resume [2022-11-22 00:36:17,053 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_resume [2022-11-22 00:36:17,053 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-22 00:36:17,053 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-22 00:36:17,053 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_acquire_eeprom [2022-11-22 00:36:17,053 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_acquire_eeprom [2022-11-22 00:36:17,054 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-22 00:36:17,054 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-22 00:36:17,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 00:36:17,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 00:36:17,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 00:36:17,055 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2022-11-22 00:36:17,055 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2022-11-22 00:36:17,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 00:36:17,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 00:36:17,055 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-22 00:36:17,055 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-22 00:36:17,056 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-22 00:36:17,056 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-22 00:36:17,056 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_polarity [2022-11-22 00:36:17,056 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_polarity [2022-11-22 00:36:17,056 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-22 00:36:17,056 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-22 00:36:17,057 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-22 00:36:17,057 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-22 00:36:17,057 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom_len [2022-11-22 00:36:17,057 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom_len [2022-11-22 00:36:17,057 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-22 00:36:17,057 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-22 00:36:17,057 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_rx_resources [2022-11-22 00:36:17,058 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_rx_resources [2022-11-22 00:36:17,058 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-11-22 00:36:17,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-11-22 00:36:17,058 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_close [2022-11-22 00:36:17,058 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_close [2022-11-22 00:36:17,058 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-22 00:36:17,059 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-22 00:36:17,059 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-22 00:36:17,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-22 00:36:17,059 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-22 00:36:17,059 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-22 00:36:17,059 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-22 00:36:17,060 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-22 00:36:17,060 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-22 00:36:17,060 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-22 00:36:17,060 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2022-11-22 00:36:17,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2022-11-22 00:36:17,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 00:36:17,060 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_media_type [2022-11-22 00:36:17,061 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_media_type [2022-11-22 00:36:17,061 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_eeprom [2022-11-22 00:36:17,061 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_eeprom [2022-11-22 00:36:17,061 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_phy_loopback [2022-11-22 00:36:17,061 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_phy_loopback [2022-11-22 00:36:17,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-22 00:36:17,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-22 00:36:17,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 00:36:17,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 00:36:17,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-22 00:36:17,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-22 00:36:17,062 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_enable [2022-11-22 00:36:17,063 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_enable [2022-11-22 00:36:17,063 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_up [2022-11-22 00:36:17,063 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_up [2022-11-22 00:36:17,063 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_tx_timeout [2022-11-22 00:36:17,063 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_tx_timeout [2022-11-22 00:36:17,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_87 [2022-11-22 00:36:17,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_87 [2022-11-22 00:36:17,064 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_mdi_clk [2022-11-22 00:36:17,064 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_mdi_clk [2022-11-22 00:36:17,064 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-22 00:36:17,064 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-22 00:36:17,064 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 00:36:17,064 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 00:36:17,065 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-22 00:36:17,065 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-22 00:36:17,065 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_eeprom [2022-11-22 00:36:17,065 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_eeprom [2022-11-22 00:36:17,065 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_set_mwi [2022-11-22 00:36:17,065 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_set_mwi [2022-11-22 00:36:17,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_stats_lock_of_e1000_adapter [2022-11-22 00:36:17,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_stats_lock_of_e1000_adapter [2022-11-22 00:36:17,066 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_polarity_reversal_workaround [2022-11-22 00:36:17,066 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_polarity_reversal_workaround [2022-11-22 00:36:17,066 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-22 00:36:17,066 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-22 00:36:17,067 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-22 00:36:17,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-22 00:36:17,067 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 00:36:17,067 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 00:36:17,067 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_link_test [2022-11-22 00:36:17,067 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_link_test [2022-11-22 00:36:17,068 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_mdi_bits [2022-11-22 00:36:17,068 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_mdi_bits [2022-11-22 00:36:17,068 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_spd_dplx [2022-11-22 00:36:17,068 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_spd_dplx [2022-11-22 00:36:17,068 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2022-11-22 00:36:17,068 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2022-11-22 00:36:17,068 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down [2022-11-22 00:36:17,069 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down [2022-11-22 00:36:17,069 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-22 00:36:17,069 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-22 00:36:17,069 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_init_script [2022-11-22 00:36:17,069 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_init_script [2022-11-22 00:36:17,069 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-22 00:36:17,070 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-22 00:36:17,070 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-22 00:36:17,070 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-22 00:36:17,070 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-22 00:36:17,070 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-22 00:36:17,070 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_shutdown [2022-11-22 00:36:17,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_shutdown [2022-11-22 00:36:17,071 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_tx_resources [2022-11-22 00:36:17,071 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_tx_resources [2022-11-22 00:36:17,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 00:36:17,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 00:36:17,071 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-22 00:36:17,071 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-22 00:36:17,072 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-22 00:36:17,072 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-22 00:36:17,072 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-11-22 00:36:17,072 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-11-22 00:36:17,072 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_wol_exclusion [2022-11-22 00:36:17,072 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_wol_exclusion [2022-11-22 00:36:17,073 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-22 00:36:17,073 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-22 00:36:17,073 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-22 00:36:17,073 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-22 00:36:17,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_e1000_phy_lock [2022-11-22 00:36:17,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_e1000_phy_lock [2022-11-22 00:36:17,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:36:17,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 00:36:17,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 00:36:17,074 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-22 00:36:19,280 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:36:19,286 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:36:20,830 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 00:37:21,514 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:37:29,232 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:37:29,232 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-22 00:37:29,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:37:29 BoogieIcfgContainer [2022-11-22 00:37:29,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:37:29,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:37:29,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:37:29,248 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:37:29,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:36:02" (1/3) ... [2022-11-22 00:37:29,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cc988a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:37:29, skipping insertion in model container [2022-11-22 00:37:29,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:36:13" (2/3) ... [2022-11-22 00:37:29,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cc988a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:37:29, skipping insertion in model container [2022-11-22 00:37:29,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:37:29" (3/3) ... [2022-11-22 00:37:29,251 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i [2022-11-22 00:37:29,273 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:37:29,273 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-22 00:37:29,423 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:37:29,430 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;@5715d6c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:37:29,430 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-22 00:37:29,452 INFO L276 IsEmpty]: Start isEmpty. Operand has 6607 states, 4197 states have (on average 1.3350011913271385) internal successors, (5603), 4305 states have internal predecessors, (5603), 2159 states have call successors, (2159), 250 states have call predecessors, (2159), 249 states have return successors, (2155), 2142 states have call predecessors, (2155), 2155 states have call successors, (2155) [2022-11-22 00:37:29,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-22 00:37:29,461 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:37:29,462 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:37:29,462 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)] === [2022-11-22 00:37:29,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:37:29,468 INFO L85 PathProgramCache]: Analyzing trace with hash -2136983882, now seen corresponding path program 1 times [2022-11-22 00:37:29,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:37:29,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244177847] [2022-11-22 00:37:29,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:37:29,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:37:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:37:32,639 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 00:37:32,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:37:32,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244177847] [2022-11-22 00:37:32,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244177847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:37:32,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:37:32,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:37:32,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059538470] [2022-11-22 00:37:32,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:37:32,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:37:32,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:37:32,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:37:32,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:37:32,716 INFO L87 Difference]: Start difference. First operand has 6607 states, 4197 states have (on average 1.3350011913271385) internal successors, (5603), 4305 states have internal predecessors, (5603), 2159 states have call successors, (2159), 250 states have call predecessors, (2159), 249 states have return successors, (2155), 2142 states have call predecessors, (2155), 2155 states have call successors, (2155) Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-22 00:37:35,942 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 [] [2022-11-22 00:37:48,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:37:50,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:37:52,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:37:54,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:37:57,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:37:59,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:38:01,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:38:15,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:38:18,827 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 [] [2022-11-22 00:38:19,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:38:19,465 INFO L93 Difference]: Finished difference Result 17486 states and 26812 transitions. [2022-11-22 00:38:19,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 00:38:19,468 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 35 [2022-11-22 00:38:19,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:38:19,567 INFO L225 Difference]: With dead ends: 17486 [2022-11-22 00:38:19,567 INFO L226 Difference]: Without dead ends: 10883 [2022-11-22 00:38:19,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:38:19,684 INFO L413 NwaCegarLoop]: 10956 mSDtfsCounter, 6369 mSDsluCounter, 31011 mSDsCounter, 0 mSdLazyCounter, 3132 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6387 SdHoareTripleChecker+Valid, 41967 SdHoareTripleChecker+Invalid, 3142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3132 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:38:19,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6387 Valid, 41967 Invalid, 3142 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 3132 Invalid, 8 Unknown, 0 Unchecked, 45.2s Time] [2022-11-22 00:38:19,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10883 states. [2022-11-22 00:38:20,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10883 to 10871. [2022-11-22 00:38:20,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10871 states, 6867 states have (on average 1.326780253385758) internal successors, (9111), 7031 states have internal predecessors, (9111), 3562 states have call successors, (3562), 441 states have call predecessors, (3562), 439 states have return successors, (3556), 3541 states have call predecessors, (3556), 3556 states have call successors, (3556) [2022-11-22 00:38:21,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10871 states to 10871 states and 16229 transitions. [2022-11-22 00:38:21,014 INFO L78 Accepts]: Start accepts. Automaton has 10871 states and 16229 transitions. Word has length 35 [2022-11-22 00:38:21,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:38:21,015 INFO L495 AbstractCegarLoop]: Abstraction has 10871 states and 16229 transitions. [2022-11-22 00:38:21,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-22 00:38:21,015 INFO L276 IsEmpty]: Start isEmpty. Operand 10871 states and 16229 transitions. [2022-11-22 00:38:21,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-22 00:38:21,018 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:38:21,018 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:38:21,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:38:21,019 INFO L420 AbstractCegarLoop]: === Iteration 2 === 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)] === [2022-11-22 00:38:21,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:38:21,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1923592118, now seen corresponding path program 1 times [2022-11-22 00:38:21,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:38:21,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225726814] [2022-11-22 00:38:21,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:38:21,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:38:21,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:38:23,595 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 00:38:23,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:38:23,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225726814] [2022-11-22 00:38:23,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225726814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:38:23,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:38:23,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:38:23,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294986263] [2022-11-22 00:38:23,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:38:23,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:38:23,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:38:23,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:38:23,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:38:23,599 INFO L87 Difference]: Start difference. First operand 10871 states and 16229 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-22 00:38:26,898 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 [] [2022-11-22 00:38:28,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:38:43,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:38:45,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:38:59,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:39:01,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:39:03,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:39:11,968 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 [] [2022-11-22 00:39:13,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:39:13,229 INFO L93 Difference]: Finished difference Result 17105 states and 25546 transitions. [2022-11-22 00:39:13,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 00:39:13,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 40 [2022-11-22 00:39:13,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:39:13,334 INFO L225 Difference]: With dead ends: 17105 [2022-11-22 00:39:13,334 INFO L226 Difference]: Without dead ends: 17103 [2022-11-22 00:39:13,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:39:13,345 INFO L413 NwaCegarLoop]: 13626 mSDtfsCounter, 9295 mSDsluCounter, 36330 mSDsCounter, 0 mSdLazyCounter, 4026 mSolverCounterSat, 3 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9312 SdHoareTripleChecker+Valid, 49956 SdHoareTripleChecker+Invalid, 4035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4026 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:39:13,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9312 Valid, 49956 Invalid, 4035 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3 Valid, 4026 Invalid, 6 Unknown, 0 Unchecked, 48.4s Time] [2022-11-22 00:39:13,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17103 states. [2022-11-22 00:39:14,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17103 to 17053. [2022-11-22 00:39:14,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17053 states, 10743 states have (on average 1.3246765335567345) internal successors, (14231), 11008 states have internal predecessors, (14231), 5618 states have call successors, (5618), 692 states have call predecessors, (5618), 689 states have return successors, (5632), 5581 states have call predecessors, (5632), 5609 states have call successors, (5632) [2022-11-22 00:39:14,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17053 states to 17053 states and 25481 transitions. [2022-11-22 00:39:14,766 INFO L78 Accepts]: Start accepts. Automaton has 17053 states and 25481 transitions. Word has length 40 [2022-11-22 00:39:14,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:39:14,767 INFO L495 AbstractCegarLoop]: Abstraction has 17053 states and 25481 transitions. [2022-11-22 00:39:14,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-22 00:39:14,768 INFO L276 IsEmpty]: Start isEmpty. Operand 17053 states and 25481 transitions. [2022-11-22 00:39:14,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-22 00:39:14,769 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:39:14,770 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-11-22 00:39:14,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:39:14,770 INFO L420 AbstractCegarLoop]: === Iteration 3 === 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)] === [2022-11-22 00:39:14,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:39:14,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1500654326, now seen corresponding path program 1 times [2022-11-22 00:39:14,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:39:14,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947702611] [2022-11-22 00:39:14,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:39:14,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:39:15,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:39:17,093 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-22 00:39:17,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:39:17,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947702611] [2022-11-22 00:39:17,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947702611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:39:17,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:39:17,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:39:17,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464572798] [2022-11-22 00:39:17,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:39:17,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:39:17,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:39:17,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:39:17,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:39:17,095 INFO L87 Difference]: Start difference. First operand 17053 states and 25481 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-22 00:39:20,093 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 [] [2022-11-22 00:39:31,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:39:34,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:39:36,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:39:38,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:39:50,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:39:52,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:39:55,044 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 [] [2022-11-22 00:39:55,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:39:55,991 INFO L93 Difference]: Finished difference Result 17071 states and 25499 transitions. [2022-11-22 00:39:55,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 00:39:55,992 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 45 [2022-11-22 00:39:55,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:39:56,073 INFO L225 Difference]: With dead ends: 17071 [2022-11-22 00:39:56,073 INFO L226 Difference]: Without dead ends: 17069 [2022-11-22 00:39:56,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:39:56,086 INFO L413 NwaCegarLoop]: 10987 mSDtfsCounter, 6354 mSDsluCounter, 31054 mSDsCounter, 0 mSdLazyCounter, 3141 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6369 SdHoareTripleChecker+Valid, 42041 SdHoareTripleChecker+Invalid, 3148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3141 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:39:56,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6369 Valid, 42041 Invalid, 3148 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 3141 Invalid, 5 Unknown, 0 Unchecked, 38.1s Time] [2022-11-22 00:39:56,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17069 states. [2022-11-22 00:39:57,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17069 to 17057. [2022-11-22 00:39:57,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17057 states, 10746 states have (on average 1.3245858924250884) internal successors, (14234), 11011 states have internal predecessors, (14234), 5618 states have call successors, (5618), 693 states have call predecessors, (5618), 690 states have return successors, (5632), 5581 states have call predecessors, (5632), 5609 states have call successors, (5632) [2022-11-22 00:39:57,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17057 states to 17057 states and 25484 transitions. [2022-11-22 00:39:57,627 INFO L78 Accepts]: Start accepts. Automaton has 17057 states and 25484 transitions. Word has length 45 [2022-11-22 00:39:57,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:39:57,628 INFO L495 AbstractCegarLoop]: Abstraction has 17057 states and 25484 transitions. [2022-11-22 00:39:57,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-22 00:39:57,629 INFO L276 IsEmpty]: Start isEmpty. Operand 17057 states and 25484 transitions. [2022-11-22 00:39:57,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-22 00:39:57,637 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:39:57,637 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:39:57,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 00:39:57,638 INFO L420 AbstractCegarLoop]: === Iteration 4 === 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)] === [2022-11-22 00:39:57,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:39:57,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1045158878, now seen corresponding path program 1 times [2022-11-22 00:39:57,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:39:57,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603450804] [2022-11-22 00:39:57,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:39:57,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:39:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:39:59,620 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-22 00:39:59,620 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:39:59,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603450804] [2022-11-22 00:39:59,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603450804] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:39:59,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:39:59,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:39:59,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857492538] [2022-11-22 00:39:59,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:39:59,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:39:59,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:39:59,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:39:59,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:39:59,623 INFO L87 Difference]: Start difference. First operand 17057 states and 25484 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-22 00:40:02,677 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 [] [2022-11-22 00:40:15,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:40:17,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:40:19,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:40:21,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:40:34,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:40:35,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:40:37,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:40:39,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:40:39,594 INFO L93 Difference]: Finished difference Result 17075 states and 25502 transitions. [2022-11-22 00:40:39,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 00:40:39,595 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 56 [2022-11-22 00:40:39,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:40:39,674 INFO L225 Difference]: With dead ends: 17075 [2022-11-22 00:40:39,674 INFO L226 Difference]: Without dead ends: 17073 [2022-11-22 00:40:39,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:40:39,686 INFO L413 NwaCegarLoop]: 11011 mSDtfsCounter, 6350 mSDsluCounter, 31102 mSDsCounter, 0 mSdLazyCounter, 3144 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6364 SdHoareTripleChecker+Valid, 42113 SdHoareTripleChecker+Invalid, 3151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3144 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:40:39,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6364 Valid, 42113 Invalid, 3151 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3144 Invalid, 5 Unknown, 0 Unchecked, 39.2s Time] [2022-11-22 00:40:39,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17073 states. [2022-11-22 00:40:40,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17073 to 17061. [2022-11-22 00:40:40,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17061 states, 10749 states have (on average 1.3244953018885477) internal successors, (14237), 11014 states have internal predecessors, (14237), 5618 states have call successors, (5618), 694 states have call predecessors, (5618), 691 states have return successors, (5632), 5581 states have call predecessors, (5632), 5609 states have call successors, (5632) [2022-11-22 00:40:41,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17061 states to 17061 states and 25487 transitions. [2022-11-22 00:40:41,129 INFO L78 Accepts]: Start accepts. Automaton has 17061 states and 25487 transitions. Word has length 56 [2022-11-22 00:40:41,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:40:41,130 INFO L495 AbstractCegarLoop]: Abstraction has 17061 states and 25487 transitions. [2022-11-22 00:40:41,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-22 00:40:41,130 INFO L276 IsEmpty]: Start isEmpty. Operand 17061 states and 25487 transitions. [2022-11-22 00:40:41,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-22 00:40:41,132 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:40:41,132 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:40:41,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 00:40:41,133 INFO L420 AbstractCegarLoop]: === Iteration 5 === 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)] === [2022-11-22 00:40:41,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:40:41,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1992616802, now seen corresponding path program 1 times [2022-11-22 00:40:41,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:40:41,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218299945] [2022-11-22 00:40:41,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:40:41,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:40:41,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:40:42,973 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-11-22 00:40:42,974 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:40:42,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218299945] [2022-11-22 00:40:42,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218299945] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:40:42,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:40:42,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:40:42,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281480139] [2022-11-22 00:40:42,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:40:42,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:40:42,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:40:42,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:40:42,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:40:42,976 INFO L87 Difference]: Start difference. First operand 17061 states and 25487 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-22 00:40:45,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:40:56,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:40:59,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:41:17,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:41:19,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:41:21,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:41:25,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:41:26,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:41:26,988 INFO L93 Difference]: Finished difference Result 29473 states and 44150 transitions. [2022-11-22 00:41:26,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 00:41:26,989 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 61 [2022-11-22 00:41:26,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:41:27,160 INFO L225 Difference]: With dead ends: 29473 [2022-11-22 00:41:27,160 INFO L226 Difference]: Without dead ends: 29471 [2022-11-22 00:41:27,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:41:27,180 INFO L413 NwaCegarLoop]: 13535 mSDtfsCounter, 9407 mSDsluCounter, 35953 mSDsCounter, 0 mSdLazyCounter, 4022 mSolverCounterSat, 3 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9421 SdHoareTripleChecker+Valid, 49488 SdHoareTripleChecker+Invalid, 4030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4022 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.6s IncrementalHoareTripleChecker+Time [2022-11-22 00:41:27,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9421 Valid, 49488 Invalid, 4030 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3 Valid, 4022 Invalid, 5 Unknown, 0 Unchecked, 42.6s Time] [2022-11-22 00:41:27,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29471 states. [2022-11-22 00:41:29,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29471 to 29416. [2022-11-22 00:41:29,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29416 states, 18443 states have (on average 1.3205552242043053) internal successors, (24355), 18940 states have internal predecessors, (24355), 9784 states have call successors, (9784), 1196 states have call predecessors, (9784), 1186 states have return successors, (9940), 9682 states have call predecessors, (9940), 9769 states have call successors, (9940) [2022-11-22 00:41:30,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29416 states to 29416 states and 44079 transitions. [2022-11-22 00:41:30,041 INFO L78 Accepts]: Start accepts. Automaton has 29416 states and 44079 transitions. Word has length 61 [2022-11-22 00:41:30,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:41:30,042 INFO L495 AbstractCegarLoop]: Abstraction has 29416 states and 44079 transitions. [2022-11-22 00:41:30,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-22 00:41:30,043 INFO L276 IsEmpty]: Start isEmpty. Operand 29416 states and 44079 transitions. [2022-11-22 00:41:30,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-22 00:41:30,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:41:30,047 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:41:30,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 00:41:30,047 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 00:41:30,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:41:30,048 INFO L85 PathProgramCache]: Analyzing trace with hash 469370398, now seen corresponding path program 1 times [2022-11-22 00:41:30,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:41:30,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926084337] [2022-11-22 00:41:30,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:41:30,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:41:30,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:41:32,582 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-22 00:41:32,582 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:41:32,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926084337] [2022-11-22 00:41:32,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926084337] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:41:32,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:41:32,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:41:32,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280921933] [2022-11-22 00:41:32,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:41:32,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:41:32,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:41:32,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:41:32,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:41:32,585 INFO L87 Difference]: Start difference. First operand 29416 states and 44079 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-22 00:41:35,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:41:41,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:41:50,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:41:52,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:42:10,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:42:12,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:42:14,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:42:14,325 INFO L93 Difference]: Finished difference Result 48608 states and 72911 transitions. [2022-11-22 00:42:14,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 00:42:14,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 66 [2022-11-22 00:42:14,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:42:14,608 INFO L225 Difference]: With dead ends: 48608 [2022-11-22 00:42:14,608 INFO L226 Difference]: Without dead ends: 48606 [2022-11-22 00:42:14,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:42:14,633 INFO L413 NwaCegarLoop]: 12990 mSDtfsCounter, 9244 mSDsluCounter, 33263 mSDsCounter, 0 mSdLazyCounter, 3822 mSolverCounterSat, 3 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9256 SdHoareTripleChecker+Valid, 46253 SdHoareTripleChecker+Invalid, 3830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3822 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:42:14,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9256 Valid, 46253 Invalid, 3830 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3 Valid, 3822 Invalid, 5 Unknown, 0 Unchecked, 39.8s Time] [2022-11-22 00:42:14,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48606 states. [2022-11-22 00:42:18,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48606 to 48549. [2022-11-22 00:42:18,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48549 states, 30128 states have (on average 1.3101765799256506) internal successors, (39473), 31150 states have internal predecessors, (39473), 16330 states have call successors, (16330), 2122 states have call predecessors, (16330), 2088 states have return successors, (17033), 15993 states have call predecessors, (17033), 16303 states have call successors, (17033) [2022-11-22 00:42:18,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48549 states to 48549 states and 72836 transitions. [2022-11-22 00:42:19,001 INFO L78 Accepts]: Start accepts. Automaton has 48549 states and 72836 transitions. Word has length 66 [2022-11-22 00:42:19,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:42:19,002 INFO L495 AbstractCegarLoop]: Abstraction has 48549 states and 72836 transitions. [2022-11-22 00:42:19,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-22 00:42:19,002 INFO L276 IsEmpty]: Start isEmpty. Operand 48549 states and 72836 transitions. [2022-11-22 00:42:19,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-22 00:42:19,006 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:42:19,006 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:42:19,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 00:42:19,007 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 00:42:19,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:42:19,008 INFO L85 PathProgramCache]: Analyzing trace with hash 248600738, now seen corresponding path program 1 times [2022-11-22 00:42:19,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:42:19,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384945250] [2022-11-22 00:42:19,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:42:19,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:42:19,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:42:21,423 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-11-22 00:42:21,423 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:42:21,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384945250] [2022-11-22 00:42:21,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384945250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:42:21,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:42:21,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:42:21,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012415849] [2022-11-22 00:42:21,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:42:21,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:42:21,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:42:21,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:42:21,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:42:21,425 INFO L87 Difference]: Start difference. First operand 48549 states and 72836 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-22 00:42:24,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:42:40,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:42:42,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:42:55,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:42:57,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:42:59,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:43:00,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:43:02,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:43:03,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:43:03,788 INFO L93 Difference]: Finished difference Result 48567 states and 72854 transitions. [2022-11-22 00:43:03,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 00:43:03,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 71 [2022-11-22 00:43:03,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:43:04,051 INFO L225 Difference]: With dead ends: 48567 [2022-11-22 00:43:04,052 INFO L226 Difference]: Without dead ends: 48565 [2022-11-22 00:43:04,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:43:04,084 INFO L413 NwaCegarLoop]: 11093 mSDtfsCounter, 6350 mSDsluCounter, 31266 mSDsCounter, 0 mSdLazyCounter, 3146 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6361 SdHoareTripleChecker+Valid, 42359 SdHoareTripleChecker+Invalid, 3154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3146 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.5s IncrementalHoareTripleChecker+Time [2022-11-22 00:43:04,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6361 Valid, 42359 Invalid, 3154 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 3146 Invalid, 6 Unknown, 0 Unchecked, 40.5s Time] [2022-11-22 00:43:04,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48565 states. [2022-11-22 00:43:07,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48565 to 48553. [2022-11-22 00:43:07,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48553 states, 30131 states have (on average 1.310145697122565) internal successors, (39476), 31153 states have internal predecessors, (39476), 16330 states have call successors, (16330), 2123 states have call predecessors, (16330), 2089 states have return successors, (17033), 15993 states have call predecessors, (17033), 16303 states have call successors, (17033) [2022-11-22 00:43:08,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48553 states to 48553 states and 72839 transitions. [2022-11-22 00:43:08,066 INFO L78 Accepts]: Start accepts. Automaton has 48553 states and 72839 transitions. Word has length 71 [2022-11-22 00:43:08,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:43:08,067 INFO L495 AbstractCegarLoop]: Abstraction has 48553 states and 72839 transitions. [2022-11-22 00:43:08,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-22 00:43:08,067 INFO L276 IsEmpty]: Start isEmpty. Operand 48553 states and 72839 transitions. [2022-11-22 00:43:08,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-22 00:43:08,068 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:43:08,069 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:43:08,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 00:43:08,069 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 00:43:08,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:43:08,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1466902006, now seen corresponding path program 1 times [2022-11-22 00:43:08,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:43:08,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104545453] [2022-11-22 00:43:08,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:43:08,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:43:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:43:10,291 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2022-11-22 00:43:10,292 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:43:10,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104545453] [2022-11-22 00:43:10,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104545453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:43:10,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:43:10,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:43:10,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742848189] [2022-11-22 00:43:10,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:43:10,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:43:10,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:43:10,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:43:10,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:43:10,294 INFO L87 Difference]: Start difference. First operand 48553 states and 72839 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-22 00:43:13,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:43:27,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:43:29,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:43:31,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:43:33,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:43:45,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:43:48,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:43:51,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:43:52,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:43:53,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:43:55,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:43:57,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:43:57,083 INFO L93 Difference]: Finished difference Result 48571 states and 72857 transitions. [2022-11-22 00:43:57,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 00:43:57,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 70 [2022-11-22 00:43:57,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:43:57,331 INFO L225 Difference]: With dead ends: 48571 [2022-11-22 00:43:57,332 INFO L226 Difference]: Without dead ends: 48569 [2022-11-22 00:43:57,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:43:57,360 INFO L413 NwaCegarLoop]: 11094 mSDtfsCounter, 6354 mSDsluCounter, 31268 mSDsCounter, 0 mSdLazyCounter, 3152 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6364 SdHoareTripleChecker+Valid, 42362 SdHoareTripleChecker+Invalid, 3157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3152 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:43:57,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6364 Valid, 42362 Invalid, 3157 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3152 Invalid, 3 Unknown, 0 Unchecked, 44.8s Time] [2022-11-22 00:43:57,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48569 states. [2022-11-22 00:44:00,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48569 to 48557. [2022-11-22 00:44:00,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48557 states, 30134 states have (on average 1.3101148204685737) internal successors, (39479), 31156 states have internal predecessors, (39479), 16330 states have call successors, (16330), 2124 states have call predecessors, (16330), 2090 states have return successors, (17033), 15993 states have call predecessors, (17033), 16303 states have call successors, (17033) [2022-11-22 00:44:01,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48557 states to 48557 states and 72842 transitions. [2022-11-22 00:44:01,406 INFO L78 Accepts]: Start accepts. Automaton has 48557 states and 72842 transitions. Word has length 70 [2022-11-22 00:44:01,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:44:01,407 INFO L495 AbstractCegarLoop]: Abstraction has 48557 states and 72842 transitions. [2022-11-22 00:44:01,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-22 00:44:01,408 INFO L276 IsEmpty]: Start isEmpty. Operand 48557 states and 72842 transitions. [2022-11-22 00:44:01,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-22 00:44:01,409 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:44:01,409 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:44:01,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 00:44:01,409 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 00:44:01,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:44:01,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1013455390, now seen corresponding path program 1 times [2022-11-22 00:44:01,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:44:01,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025425833] [2022-11-22 00:44:01,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:44:01,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:44:01,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:44:03,432 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2022-11-22 00:44:03,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:44:03,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025425833] [2022-11-22 00:44:03,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025425833] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:44:03,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:44:03,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:44:03,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296050925] [2022-11-22 00:44:03,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:44:03,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:44:03,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:44:03,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:44:03,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:44:03,435 INFO L87 Difference]: Start difference. First operand 48557 states and 72842 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-22 00:44:06,566 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 [] [2022-11-22 00:44:21,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:44:23,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:44:26,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:44:42,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:44:44,279 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 [] [2022-11-22 00:44:46,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:44:46,014 INFO L93 Difference]: Finished difference Result 48575 states and 72860 transitions. [2022-11-22 00:44:46,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 00:44:46,014 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 81 [2022-11-22 00:44:46,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:44:46,202 INFO L225 Difference]: With dead ends: 48575 [2022-11-22 00:44:46,202 INFO L226 Difference]: Without dead ends: 48573 [2022-11-22 00:44:46,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:44:46,225 INFO L413 NwaCegarLoop]: 11082 mSDtfsCounter, 6350 mSDsluCounter, 31244 mSDsCounter, 0 mSdLazyCounter, 3140 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6359 SdHoareTripleChecker+Valid, 42326 SdHoareTripleChecker+Invalid, 3148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3140 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.7s IncrementalHoareTripleChecker+Time [2022-11-22 00:44:46,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6359 Valid, 42326 Invalid, 3148 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3140 Invalid, 6 Unknown, 0 Unchecked, 40.7s Time] [2022-11-22 00:44:46,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48573 states. [2022-11-22 00:44:49,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48573 to 48561. [2022-11-22 00:44:49,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48561 states, 30137 states have (on average 1.3100839499618409) internal successors, (39482), 31159 states have internal predecessors, (39482), 16330 states have call successors, (16330), 2125 states have call predecessors, (16330), 2091 states have return successors, (17033), 15993 states have call predecessors, (17033), 16303 states have call successors, (17033) [2022-11-22 00:44:50,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48561 states to 48561 states and 72845 transitions. [2022-11-22 00:44:50,124 INFO L78 Accepts]: Start accepts. Automaton has 48561 states and 72845 transitions. Word has length 81 [2022-11-22 00:44:50,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:44:50,125 INFO L495 AbstractCegarLoop]: Abstraction has 48561 states and 72845 transitions. [2022-11-22 00:44:50,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-22 00:44:50,126 INFO L276 IsEmpty]: Start isEmpty. Operand 48561 states and 72845 transitions. [2022-11-22 00:44:50,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-22 00:44:50,127 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:44:50,128 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:44:50,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 00:44:50,128 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 00:44:50,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:44:50,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1187749194, now seen corresponding path program 1 times [2022-11-22 00:44:50,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:44:50,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866790239] [2022-11-22 00:44:50,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:44:50,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:44:50,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:44:52,120 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-11-22 00:44:52,120 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:44:52,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866790239] [2022-11-22 00:44:52,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866790239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:44:52,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:44:52,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:44:52,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458641857] [2022-11-22 00:44:52,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:44:52,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:44:52,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:44:52,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:44:52,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:44:52,122 INFO L87 Difference]: Start difference. First operand 48561 states and 72845 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-22 00:44:55,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:45:08,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:45:11,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:45:24,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:45:27,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:45:29,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:45:29,528 INFO L93 Difference]: Finished difference Result 48579 states and 72863 transitions. [2022-11-22 00:45:29,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 00:45:29,529 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 80 [2022-11-22 00:45:29,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:45:29,695 INFO L225 Difference]: With dead ends: 48579 [2022-11-22 00:45:29,695 INFO L226 Difference]: Without dead ends: 48577 [2022-11-22 00:45:29,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:45:29,719 INFO L413 NwaCegarLoop]: 11036 mSDtfsCounter, 6354 mSDsluCounter, 31152 mSDsCounter, 0 mSdLazyCounter, 3142 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6362 SdHoareTripleChecker+Valid, 42188 SdHoareTripleChecker+Invalid, 3148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3142 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.4s IncrementalHoareTripleChecker+Time [2022-11-22 00:45:29,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6362 Valid, 42188 Invalid, 3148 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3142 Invalid, 4 Unknown, 0 Unchecked, 35.4s Time] [2022-11-22 00:45:29,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48577 states. [2022-11-22 00:45:33,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48577 to 48565. [2022-11-22 00:45:33,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48565 states, 30140 states have (on average 1.3100530856005308) internal successors, (39485), 31162 states have internal predecessors, (39485), 16330 states have call successors, (16330), 2126 states have call predecessors, (16330), 2092 states have return successors, (17033), 15993 states have call predecessors, (17033), 16303 states have call successors, (17033) [2022-11-22 00:45:33,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48565 states to 48565 states and 72848 transitions. [2022-11-22 00:45:33,846 INFO L78 Accepts]: Start accepts. Automaton has 48565 states and 72848 transitions. Word has length 80 [2022-11-22 00:45:33,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:45:33,847 INFO L495 AbstractCegarLoop]: Abstraction has 48565 states and 72848 transitions. [2022-11-22 00:45:33,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-22 00:45:33,848 INFO L276 IsEmpty]: Start isEmpty. Operand 48565 states and 72848 transitions. [2022-11-22 00:45:33,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-22 00:45:33,849 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:45:33,850 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:45:33,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 00:45:33,850 INFO L420 AbstractCegarLoop]: === Iteration 11 === 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)] === [2022-11-22 00:45:33,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:45:33,851 INFO L85 PathProgramCache]: Analyzing trace with hash -168838154, now seen corresponding path program 1 times [2022-11-22 00:45:33,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:45:33,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122906837] [2022-11-22 00:45:33,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:45:33,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:45:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:45:35,769 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2022-11-22 00:45:35,770 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:45:35,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122906837] [2022-11-22 00:45:35,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122906837] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:45:35,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:45:35,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:45:35,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248158232] [2022-11-22 00:45:35,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:45:35,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:45:35,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:45:35,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:45:35,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:45:35,773 INFO L87 Difference]: Start difference. First operand 48565 states and 72848 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-22 00:45:39,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:45:46,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:45:55,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:45:58,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:46:13,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:46:15,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:46:16,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:46:16,880 INFO L93 Difference]: Finished difference Result 48583 states and 72866 transitions. [2022-11-22 00:46:16,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 00:46:16,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 85 [2022-11-22 00:46:16,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:46:17,061 INFO L225 Difference]: With dead ends: 48583 [2022-11-22 00:46:17,061 INFO L226 Difference]: Without dead ends: 48581 [2022-11-22 00:46:17,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:46:17,079 INFO L413 NwaCegarLoop]: 11082 mSDtfsCounter, 6354 mSDsluCounter, 31244 mSDsCounter, 0 mSdLazyCounter, 3138 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6361 SdHoareTripleChecker+Valid, 42326 SdHoareTripleChecker+Invalid, 3145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3138 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:46:17,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6361 Valid, 42326 Invalid, 3145 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3138 Invalid, 5 Unknown, 0 Unchecked, 39.0s Time] [2022-11-22 00:46:17,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48581 states. [2022-11-22 00:46:20,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48581 to 48569. [2022-11-22 00:46:20,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48569 states, 30143 states have (on average 1.3100222273828086) internal successors, (39488), 31165 states have internal predecessors, (39488), 16330 states have call successors, (16330), 2127 states have call predecessors, (16330), 2093 states have return successors, (17033), 15993 states have call predecessors, (17033), 16303 states have call successors, (17033) [2022-11-22 00:46:21,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48569 states to 48569 states and 72851 transitions. [2022-11-22 00:46:21,321 INFO L78 Accepts]: Start accepts. Automaton has 48569 states and 72851 transitions. Word has length 85 [2022-11-22 00:46:21,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:46:21,322 INFO L495 AbstractCegarLoop]: Abstraction has 48569 states and 72851 transitions. [2022-11-22 00:46:21,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-22 00:46:21,322 INFO L276 IsEmpty]: Start isEmpty. Operand 48569 states and 72851 transitions. [2022-11-22 00:46:21,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-22 00:46:21,324 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:46:21,324 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:46:21,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 00:46:21,325 INFO L420 AbstractCegarLoop]: === Iteration 12 === 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)] === [2022-11-22 00:46:21,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:46:21,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1951203466, now seen corresponding path program 1 times [2022-11-22 00:46:21,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:46:21,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074458945] [2022-11-22 00:46:21,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:46:21,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:46:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:46:23,052 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-11-22 00:46:23,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:46:23,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074458945] [2022-11-22 00:46:23,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074458945] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:46:23,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:46:23,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:46:23,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922555208] [2022-11-22 00:46:23,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:46:23,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:46:23,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:46:23,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:46:23,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:46:23,055 INFO L87 Difference]: Start difference. First operand 48569 states and 72851 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-22 00:46:26,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:46:41,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:46:43,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:46:50,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:47:01,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:47:04,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:47:05,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:47:05,903 INFO L93 Difference]: Finished difference Result 48587 states and 72869 transitions. [2022-11-22 00:47:05,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 00:47:05,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 90 [2022-11-22 00:47:05,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:47:06,073 INFO L225 Difference]: With dead ends: 48587 [2022-11-22 00:47:06,073 INFO L226 Difference]: Without dead ends: 48585 [2022-11-22 00:47:06,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:47:06,092 INFO L413 NwaCegarLoop]: 11093 mSDtfsCounter, 6354 mSDsluCounter, 31266 mSDsCounter, 0 mSdLazyCounter, 3147 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6360 SdHoareTripleChecker+Valid, 42359 SdHoareTripleChecker+Invalid, 3154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3147 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.9s IncrementalHoareTripleChecker+Time [2022-11-22 00:47:06,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6360 Valid, 42359 Invalid, 3154 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3147 Invalid, 5 Unknown, 0 Unchecked, 40.9s Time] [2022-11-22 00:47:06,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48585 states. [2022-11-22 00:47:09,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48585 to 48573. [2022-11-22 00:47:09,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48573 states, 30146 states have (on average 1.30999137530684) internal successors, (39491), 31168 states have internal predecessors, (39491), 16330 states have call successors, (16330), 2128 states have call predecessors, (16330), 2094 states have return successors, (17033), 15993 states have call predecessors, (17033), 16303 states have call successors, (17033) [2022-11-22 00:47:10,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48573 states to 48573 states and 72854 transitions. [2022-11-22 00:47:10,432 INFO L78 Accepts]: Start accepts. Automaton has 48573 states and 72854 transitions. Word has length 90 [2022-11-22 00:47:10,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:47:10,432 INFO L495 AbstractCegarLoop]: Abstraction has 48573 states and 72854 transitions. [2022-11-22 00:47:10,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-22 00:47:10,433 INFO L276 IsEmpty]: Start isEmpty. Operand 48573 states and 72854 transitions. [2022-11-22 00:47:10,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-22 00:47:10,435 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:47:10,435 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:47:10,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 00:47:10,436 INFO L420 AbstractCegarLoop]: === Iteration 13 === 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)] === [2022-11-22 00:47:10,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:47:10,437 INFO L85 PathProgramCache]: Analyzing trace with hash -323788702, now seen corresponding path program 1 times [2022-11-22 00:47:10,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:47:10,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388304317] [2022-11-22 00:47:10,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:47:10,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:47:10,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:47:12,294 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-11-22 00:47:12,294 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:47:12,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388304317] [2022-11-22 00:47:12,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388304317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:47:12,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:47:12,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:47:12,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424169035] [2022-11-22 00:47:12,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:47:12,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:47:12,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:47:12,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:47:12,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:47:12,297 INFO L87 Difference]: Start difference. First operand 48573 states and 72854 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-22 00:47:15,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:47:16,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:47:29,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:47:31,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:47:33,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:47:40,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:47:41,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:47:49,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:47:50,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:47:52,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:47:55,056 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 [] [2022-11-22 00:47:56,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:47:56,618 INFO L93 Difference]: Finished difference Result 48591 states and 72872 transitions. [2022-11-22 00:47:56,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 00:47:56,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 101 [2022-11-22 00:47:56,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:47:56,794 INFO L225 Difference]: With dead ends: 48591 [2022-11-22 00:47:56,794 INFO L226 Difference]: Without dead ends: 48589 [2022-11-22 00:47:56,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:47:56,812 INFO L413 NwaCegarLoop]: 11093 mSDtfsCounter, 6350 mSDsluCounter, 31266 mSDsCounter, 0 mSdLazyCounter, 3146 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6355 SdHoareTripleChecker+Valid, 42359 SdHoareTripleChecker+Invalid, 3154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3146 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:47:56,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6355 Valid, 42359 Invalid, 3154 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3146 Invalid, 6 Unknown, 0 Unchecked, 42.3s Time] [2022-11-22 00:47:56,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48589 states. [2022-11-22 00:48:00,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48589 to 48577. [2022-11-22 00:48:00,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48577 states, 30149 states have (on average 1.3099605293707917) internal successors, (39494), 31171 states have internal predecessors, (39494), 16330 states have call successors, (16330), 2129 states have call predecessors, (16330), 2095 states have return successors, (17033), 15993 states have call predecessors, (17033), 16303 states have call successors, (17033) [2022-11-22 00:48:01,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48577 states to 48577 states and 72857 transitions. [2022-11-22 00:48:01,021 INFO L78 Accepts]: Start accepts. Automaton has 48577 states and 72857 transitions. Word has length 101 [2022-11-22 00:48:01,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:48:01,021 INFO L495 AbstractCegarLoop]: Abstraction has 48577 states and 72857 transitions. [2022-11-22 00:48:01,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-22 00:48:01,022 INFO L276 IsEmpty]: Start isEmpty. Operand 48577 states and 72857 transitions. [2022-11-22 00:48:01,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-22 00:48:01,024 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:48:01,025 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:48:01,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-22 00:48:01,025 INFO L420 AbstractCegarLoop]: === Iteration 14 === 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)] === [2022-11-22 00:48:01,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:48:01,026 INFO L85 PathProgramCache]: Analyzing trace with hash -759861474, now seen corresponding path program 1 times [2022-11-22 00:48:01,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:48:01,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70442868] [2022-11-22 00:48:01,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:48:01,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:48:01,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:48:03,089 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-11-22 00:48:03,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:48:03,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70442868] [2022-11-22 00:48:03,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70442868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:48:03,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:48:03,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:48:03,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054673911] [2022-11-22 00:48:03,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:48:03,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:48:03,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:48:03,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:48:03,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:48:03,092 INFO L87 Difference]: Start difference. First operand 48577 states and 72857 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 00:48:06,220 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 [] [2022-11-22 00:48:12,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:48:14,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:48:22,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:48:24,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:48:42,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:48:44,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:48:46,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:48:46,135 INFO L93 Difference]: Finished difference Result 48595 states and 72875 transitions. [2022-11-22 00:48:46,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 00:48:46,135 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 106 [2022-11-22 00:48:46,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:48:46,304 INFO L225 Difference]: With dead ends: 48595 [2022-11-22 00:48:46,304 INFO L226 Difference]: Without dead ends: 48593 [2022-11-22 00:48:46,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:48:46,319 INFO L413 NwaCegarLoop]: 11093 mSDtfsCounter, 6350 mSDsluCounter, 31266 mSDsCounter, 0 mSdLazyCounter, 3147 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6354 SdHoareTripleChecker+Valid, 42359 SdHoareTripleChecker+Invalid, 3154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3147 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.9s IncrementalHoareTripleChecker+Time [2022-11-22 00:48:46,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6354 Valid, 42359 Invalid, 3154 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3147 Invalid, 5 Unknown, 0 Unchecked, 40.9s Time] [2022-11-22 00:48:46,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48593 states. [2022-11-22 00:48:49,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48593 to 48581. [2022-11-22 00:48:49,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48581 states, 30152 states have (on average 1.309929689572831) internal successors, (39497), 31174 states have internal predecessors, (39497), 16330 states have call successors, (16330), 2130 states have call predecessors, (16330), 2096 states have return successors, (17033), 15993 states have call predecessors, (17033), 16303 states have call successors, (17033) [2022-11-22 00:48:50,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48581 states to 48581 states and 72860 transitions. [2022-11-22 00:48:50,327 INFO L78 Accepts]: Start accepts. Automaton has 48581 states and 72860 transitions. Word has length 106 [2022-11-22 00:48:50,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:48:50,328 INFO L495 AbstractCegarLoop]: Abstraction has 48581 states and 72860 transitions. [2022-11-22 00:48:50,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 00:48:50,337 INFO L276 IsEmpty]: Start isEmpty. Operand 48581 states and 72860 transitions. [2022-11-22 00:48:50,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-11-22 00:48:50,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:48:50,342 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:48:50,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-22 00:48:50,343 INFO L420 AbstractCegarLoop]: === Iteration 15 === 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)] === [2022-11-22 00:48:50,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:48:50,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1295959158, now seen corresponding path program 1 times [2022-11-22 00:48:50,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:48:50,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686220908] [2022-11-22 00:48:50,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:48:50,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:48:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:48:52,294 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2022-11-22 00:48:52,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:48:52,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686220908] [2022-11-22 00:48:52,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686220908] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:48:52,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:48:52,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 00:48:52,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388424242] [2022-11-22 00:48:52,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:48:52,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:48:52,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:48:52,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:48:52,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:48:52,297 INFO L87 Difference]: Start difference. First operand 48581 states and 72860 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 00:48:55,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:48:57,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:49:01,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:49:11,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:49:13,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:49:16,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:49:18,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:49:30,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:49:34,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 00:49:37,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []