./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7de98f66-61df-425a-bc81-a582d8f9705a/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7de98f66-61df-425a-bc81-a582d8f9705a/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_7de98f66-61df-425a-bc81-a582d8f9705a/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7de98f66-61df-425a-bc81-a582d8f9705a/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7de98f66-61df-425a-bc81-a582d8f9705a/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_7de98f66-61df-425a-bc81-a582d8f9705a/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 08c4ab5181b7abd6700c38bd6f4a3ecc0debf94ce89805012c81d15880051c78 --- 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 01:25:50,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:25:50,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:25:50,083 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:25:50,084 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:25:50,087 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:25:50,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:25:50,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:25:50,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:25:50,100 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:25:50,101 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:25:50,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:25:50,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:25:50,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:25:50,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:25:50,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:25:50,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:25:50,114 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:25:50,115 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:25:50,122 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:25:50,123 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:25:50,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:25:50,127 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:25:50,128 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:25:50,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:25:50,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:25:50,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:25:50,140 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:25:50,142 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:25:50,143 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:25:50,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:25:50,144 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:25:50,146 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:25:50,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:25:50,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:25:50,150 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:25:50,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:25:50,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:25:50,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:25:50,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:25:50,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:25:50,154 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7de98f66-61df-425a-bc81-a582d8f9705a/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:25:50,196 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:25:50,197 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:25:50,197 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:25:50,198 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:25:50,199 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:25:50,199 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:25:50,199 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:25:50,199 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:25:50,199 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:25:50,200 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:25:50,201 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:25:50,201 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:25:50,201 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:25:50,201 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:25:50,202 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:25:50,202 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:25:50,202 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:25:50,202 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:25:50,203 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:25:50,204 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:25:50,204 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:25:50,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:25:50,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:25:50,204 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:25:50,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:25:50,205 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:25:50,206 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:25:50,206 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:25:50,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:25:50,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:25:50,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:25:50,207 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:25:50,207 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:25:50,207 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:25:50,208 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:25:50,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:25:50,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:25:50,208 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:25:50,208 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_7de98f66-61df-425a-bc81-a582d8f9705a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7de98f66-61df-425a-bc81-a582d8f9705a/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08c4ab5181b7abd6700c38bd6f4a3ecc0debf94ce89805012c81d15880051c78 [2022-11-22 01:25:50,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:25:50,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:25:50,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:25:50,545 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:25:50,546 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:25:50,547 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7de98f66-61df-425a-bc81-a582d8f9705a/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2022-11-22 01:25:53,600 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:25:54,361 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:25:54,362 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7de98f66-61df-425a-bc81-a582d8f9705a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2022-11-22 01:25:54,437 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7de98f66-61df-425a-bc81-a582d8f9705a/bin/utaipan-g80aRyZoba/data/267470427/941b14fd3e0a48a788cd5fb3f402d4c2/FLAGce5a00088 [2022-11-22 01:25:54,530 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7de98f66-61df-425a-bc81-a582d8f9705a/bin/utaipan-g80aRyZoba/data/267470427/941b14fd3e0a48a788cd5fb3f402d4c2 [2022-11-22 01:25:54,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:25:54,535 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:25:54,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:25:54,537 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:25:54,543 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:25:54,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:25:54" (1/1) ... [2022-11-22 01:25:54,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@350122aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:25:54, skipping insertion in model container [2022-11-22 01:25:54,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:25:54" (1/1) ... [2022-11-22 01:25:54,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:25:54,755 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:25:59,880 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_7de98f66-61df-425a-bc81-a582d8f9705a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445714,445727] [2022-11-22 01:25:59,885 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_7de98f66-61df-425a-bc81-a582d8f9705a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445883,445896] [2022-11-22 01:25:59,886 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_7de98f66-61df-425a-bc81-a582d8f9705a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446050,446063] [2022-11-22 01:25:59,887 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_7de98f66-61df-425a-bc81-a582d8f9705a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446218,446231] [2022-11-22 01:25:59,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:26:00,058 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:26:00,667 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_7de98f66-61df-425a-bc81-a582d8f9705a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445714,445727] [2022-11-22 01:26:00,668 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_7de98f66-61df-425a-bc81-a582d8f9705a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445883,445896] [2022-11-22 01:26:00,669 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_7de98f66-61df-425a-bc81-a582d8f9705a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446050,446063] [2022-11-22 01:26:00,669 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_7de98f66-61df-425a-bc81-a582d8f9705a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446218,446231] [2022-11-22 01:26:00,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:26:01,172 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:26:01,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:01 WrapperNode [2022-11-22 01:26:01,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:26:01,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:26:01,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:26:01,175 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:26:01,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:01" (1/1) ... [2022-11-22 01:26:01,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:01" (1/1) ... [2022-11-22 01:26:01,870 INFO L138 Inliner]: procedures = 663, calls = 4690, calls flagged for inlining = 358, calls inlined = 345, statements flattened = 10418 [2022-11-22 01:26:01,871 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:26:01,872 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:26:01,872 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:26:01,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:26:01,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:01" (1/1) ... [2022-11-22 01:26:01,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:01" (1/1) ... [2022-11-22 01:26:02,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:01" (1/1) ... [2022-11-22 01:26:02,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:01" (1/1) ... [2022-11-22 01:26:02,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:01" (1/1) ... [2022-11-22 01:26:02,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:01" (1/1) ... [2022-11-22 01:26:02,409 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:01" (1/1) ... [2022-11-22 01:26:02,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:01" (1/1) ... [2022-11-22 01:26:02,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:26:02,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:26:02,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:26:02,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:26:02,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:01" (1/1) ... [2022-11-22 01:26:02,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:26:02,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7de98f66-61df-425a-bc81-a582d8f9705a/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:26:02,553 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7de98f66-61df-425a-bc81-a582d8f9705a/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:26:02,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7de98f66-61df-425a-bc81-a582d8f9705a/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:26:02,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 01:26:02,610 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 01:26:02,610 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-22 01:26:02,610 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-22 01:26:02,610 INFO L130 BoogieDeclarations]: Found specification of procedure hw_del_addr [2022-11-22 01:26:02,611 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_del_addr [2022-11-22 01:26:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-22 01:26:02,611 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-22 01:26:02,611 INFO L130 BoogieDeclarations]: Found specification of procedure hw_cfg_wol [2022-11-22 01:26:02,611 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_cfg_wol [2022-11-22 01:26:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:26:02,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:26:02,612 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-11-22 01:26:02,612 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-11-22 01:26:02,613 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_init [2022-11-22 01:26:02,613 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_init [2022-11-22 01:26:02,613 INFO L130 BoogieDeclarations]: Found specification of procedure hw_ack_intr [2022-11-22 01:26:02,614 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_ack_intr [2022-11-22 01:26:02,614 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_tx_timeout [2022-11-22 01:26:02,615 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_tx_timeout [2022-11-22 01:26:02,616 INFO L130 BoogieDeclarations]: Found specification of procedure bridge_change [2022-11-22 01:26:02,616 INFO L138 BoogieDeclarations]: Found implementation of procedure bridge_change [2022-11-22 01:26:02,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 01:26:02,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 01:26:02,617 INFO L130 BoogieDeclarations]: Found specification of procedure set_flow_ctrl [2022-11-22 01:26:02,618 INFO L138 BoogieDeclarations]: Found implementation of procedure set_flow_ctrl [2022-11-22 01:26:02,618 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 01:26:02,618 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 01:26:02,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pci_device_driver_exit_14_2 [2022-11-22 01:26:02,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pci_device_driver_exit_14_2 [2022-11-22 01:26:02,619 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-11-22 01:26:02,619 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-11-22 01:26:02,619 INFO L130 BoogieDeclarations]: Found specification of procedure set_tx_len [2022-11-22 01:26:02,620 INFO L138 BoogieDeclarations]: Found implementation of procedure set_tx_len [2022-11-22 01:26:02,620 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_check_desc_num [2022-11-22 01:26:02,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_check_desc_num [2022-11-22 01:26:02,620 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-22 01:26:02,621 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-22 01:26:02,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 01:26:02,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 01:26:02,621 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 01:26:02,622 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 01:26:02,622 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-22 01:26:02,623 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-22 01:26:02,623 INFO L130 BoogieDeclarations]: Found specification of procedure set_media_state [2022-11-22 01:26:02,623 INFO L138 BoogieDeclarations]: Found implementation of procedure set_media_state [2022-11-22 01:26:02,623 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 01:26:02,624 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 01:26:02,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 01:26:02,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 01:26:02,624 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-22 01:26:02,625 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-22 01:26:02,625 INFO L130 BoogieDeclarations]: Found specification of procedure hw_ena_intr [2022-11-22 01:26:02,625 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_ena_intr [2022-11-22 01:26:02,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:26:02,626 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-22 01:26:02,626 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-22 01:26:02,626 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-11-22 01:26:02,626 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-11-22 01:26:02,627 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-11-22 01:26:02,627 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-11-22 01:26:02,627 INFO L130 BoogieDeclarations]: Found specification of procedure port_cfg [2022-11-22 01:26:02,627 INFO L138 BoogieDeclarations]: Found implementation of procedure port_cfg [2022-11-22 01:26:02,628 INFO L130 BoogieDeclarations]: Found specification of procedure state_gpio [2022-11-22 01:26:02,628 INFO L138 BoogieDeclarations]: Found implementation of procedure state_gpio [2022-11-22 01:26:02,628 INFO L130 BoogieDeclarations]: Found specification of procedure hw_dis_intr [2022-11-22 01:26:02,629 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_dis_intr [2022-11-22 01:26:02,629 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_read [2022-11-22 01:26:02,630 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_read [2022-11-22 01:26:02,631 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 01:26:02,631 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 01:26:02,631 INFO L130 BoogieDeclarations]: Found specification of procedure pcidev_resume [2022-11-22 01:26:02,632 INFO L138 BoogieDeclarations]: Found implementation of procedure pcidev_resume [2022-11-22 01:26:02,632 INFO L130 BoogieDeclarations]: Found specification of procedure hw_dis_intr_bit [2022-11-22 01:26:02,632 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_dis_intr_bit [2022-11-22 01:26:02,633 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_eeprom_len [2022-11-22 01:26:02,633 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_eeprom_len [2022-11-22 01:26:02,633 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_free_buffers [2022-11-22 01:26:02,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_free_buffers [2022-11-22 01:26:02,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 01:26:02,634 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_clk [2022-11-22 01:26:02,634 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_clk [2022-11-22 01:26:02,634 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 01:26:02,634 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 01:26:02,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:26:02,634 INFO L130 BoogieDeclarations]: Found specification of procedure hw_reset [2022-11-22 01:26:02,634 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_reset [2022-11-22 01:26:02,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 01:26:02,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 01:26:02,635 INFO L130 BoogieDeclarations]: Found specification of procedure rx_proc [2022-11-22 01:26:02,635 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_proc [2022-11-22 01:26:02,635 INFO L130 BoogieDeclarations]: Found specification of procedure release_desc [2022-11-22 01:26:02,635 INFO L138 BoogieDeclarations]: Found implementation of procedure release_desc [2022-11-22 01:26:02,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:26:02,636 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 01:26:02,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 01:26:02,636 INFO L130 BoogieDeclarations]: Found specification of procedure hw_resume_rx [2022-11-22 01:26:02,636 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_resume_rx [2022-11-22 01:26:02,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 01:26:02,636 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 01:26:02,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-22 01:26:02,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-22 01:26:02,637 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_netpoll [2022-11-22 01:26:02,637 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_netpoll [2022-11-22 01:26:02,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 01:26:02,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 01:26:02,637 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-11-22 01:26:02,637 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-11-22 01:26:02,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 01:26:02,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 01:26:02,638 INFO L130 BoogieDeclarations]: Found specification of procedure hw_ena_add_addr [2022-11-22 01:26:02,638 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_ena_add_addr [2022-11-22 01:26:02,638 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-11-22 01:26:02,638 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-11-22 01:26:02,639 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_grp_addr [2022-11-22 01:26:02,639 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_grp_addr [2022-11-22 01:26:02,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-22 01:26:02,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-22 01:26:02,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:26:02,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-22 01:26:02,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-22 01:26:02,640 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 01:26:02,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 01:26:02,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:26:02,640 INFO L130 BoogieDeclarations]: Found specification of procedure sw_w_sta_mac_table [2022-11-22 01:26:02,640 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_w_sta_mac_table [2022-11-22 01:26:02,640 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2022-11-22 01:26:02,640 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2022-11-22 01:26:02,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 01:26:02,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 01:26:02,641 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 01:26:02,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 01:26:02,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:26:02,641 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:26:02,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:26:02,642 INFO L130 BoogieDeclarations]: Found specification of procedure hw_stop_rx [2022-11-22 01:26:02,642 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_stop_rx [2022-11-22 01:26:02,642 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_intr [2022-11-22 01:26:02,642 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_intr [2022-11-22 01:26:02,642 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:26:02,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:26:02,642 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-22 01:26:02,642 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-22 01:26:02,643 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_init_rx_buffers [2022-11-22 01:26:02,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_init_rx_buffers [2022-11-22 01:26:02,643 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_free_mem [2022-11-22 01:26:02,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_free_mem [2022-11-22 01:26:02,643 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 01:26:02,643 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 01:26:02,644 INFO L130 BoogieDeclarations]: Found specification of procedure hw_w_phy [2022-11-22 01:26:02,644 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_w_phy [2022-11-22 01:26:02,644 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-22 01:26:02,644 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-22 01:26:02,644 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-22 01:26:02,644 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-22 01:26:02,644 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-11-22 01:26:02,645 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-11-22 01:26:02,645 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_set_rx_mode [2022-11-22 01:26:02,645 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_set_rx_mode [2022-11-22 01:26:02,645 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-11-22 01:26:02,645 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-11-22 01:26:02,645 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-22 01:26:02,646 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-22 01:26:02,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:26:02,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:26:02,646 INFO L130 BoogieDeclarations]: Found specification of procedure transmit_cleanup [2022-11-22 01:26:02,646 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit_cleanup [2022-11-22 01:26:02,646 INFO L130 BoogieDeclarations]: Found specification of procedure hw_r_phy [2022-11-22 01:26:02,647 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_r_phy [2022-11-22 01:26:02,647 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_addr [2022-11-22 01:26:02,647 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_addr [2022-11-22 01:26:02,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:26:02,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:26:02,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 01:26:02,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 01:26:02,648 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_pkt [2022-11-22 01:26:02,648 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_pkt [2022-11-22 01:26:02,648 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2022-11-22 01:26:02,648 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2022-11-22 01:26:02,648 INFO L130 BoogieDeclarations]: Found specification of procedure port_get_link_speed [2022-11-22 01:26:02,648 INFO L138 BoogieDeclarations]: Found implementation of procedure port_get_link_speed [2022-11-22 01:26:02,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 01:26:02,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 01:26:02,649 INFO L130 BoogieDeclarations]: Found specification of procedure port_r16 [2022-11-22 01:26:02,649 INFO L138 BoogieDeclarations]: Found implementation of procedure port_r16 [2022-11-22 01:26:02,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_hwlock_of_dev_info [2022-11-22 01:26:02,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_hwlock_of_dev_info [2022-11-22 01:26:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure sw_cfg_port_base_vlan [2022-11-22 01:26:02,650 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_cfg_port_base_vlan [2022-11-22 01:26:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure drop_gpio [2022-11-22 01:26:02,650 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_gpio [2022-11-22 01:26:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-22 01:26:02,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-22 01:26:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_desc_base [2022-11-22 01:26:02,651 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_desc_base [2022-11-22 01:26:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-22 01:26:02,651 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-22 01:26:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure hw_block_intr [2022-11-22 01:26:02,651 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_block_intr [2022-11-22 01:26:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-22 01:26:02,652 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-22 01:26:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2022-11-22 01:26:02,652 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2022-11-22 01:26:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_network_header [2022-11-22 01:26:02,652 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_network_header [2022-11-22 01:26:02,652 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_init_timer [2022-11-22 01:26:02,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_init_timer [2022-11-22 01:26:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure hw_reset_pkts [2022-11-22 01:26:02,653 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_reset_pkts [2022-11-22 01:26:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 01:26:02,653 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 01:26:02,653 INFO L130 BoogieDeclarations]: Found specification of procedure hw_disable [2022-11-22 01:26:02,654 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_disable [2022-11-22 01:26:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-22 01:26:02,654 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-22 01:26:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-11-22 01:26:02,654 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-11-22 01:26:02,654 INFO L130 BoogieDeclarations]: Found specification of procedure get_mac_addr [2022-11-22 01:26:02,654 INFO L138 BoogieDeclarations]: Found implementation of procedure get_mac_addr [2022-11-22 01:26:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure hw_restore_intr [2022-11-22 01:26:02,655 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_restore_intr [2022-11-22 01:26:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-22 01:26:02,655 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-22 01:26:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:26:02,655 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 01:26:02,656 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 01:26:02,656 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-22 01:26:02,656 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-22 01:26:02,656 INFO L130 BoogieDeclarations]: Found specification of procedure hw_start_rx [2022-11-22 01:26:02,656 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_start_rx [2022-11-22 01:26:02,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:26:02,657 INFO L130 BoogieDeclarations]: Found specification of procedure port_cfg_broad_storm [2022-11-22 01:26:02,657 INFO L138 BoogieDeclarations]: Found implementation of procedure port_cfg_broad_storm [2022-11-22 01:26:02,657 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-22 01:26:02,657 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-22 01:26:02,657 INFO L130 BoogieDeclarations]: Found specification of procedure hw_turn_on_intr [2022-11-22 01:26:02,657 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_turn_on_intr [2022-11-22 01:26:02,658 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-22 01:26:02,658 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-22 01:26:02,658 INFO L130 BoogieDeclarations]: Found specification of procedure sw_chk [2022-11-22 01:26:02,658 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_chk [2022-11-22 01:26:02,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:26:02,658 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_wol_frame [2022-11-22 01:26:02,658 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_wol_frame [2022-11-22 01:26:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-22 01:26:02,659 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-22 01:26:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-22 01:26:02,659 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-22 01:26:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 01:26:02,659 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 01:26:02,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 01:26:02,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 01:26:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-22 01:26:02,660 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-22 01:26:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure port_r_mib_pkt [2022-11-22 01:26:02,660 INFO L138 BoogieDeclarations]: Found implementation of procedure port_r_mib_pkt [2022-11-22 01:26:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-22 01:26:02,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-22 01:26:02,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_63 [2022-11-22 01:26:02,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_63 [2022-11-22 01:26:02,661 INFO L130 BoogieDeclarations]: Found specification of procedure sw_cfg [2022-11-22 01:26:02,661 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_cfg [2022-11-22 01:26:02,661 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2022-11-22 01:26:02,661 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2022-11-22 01:26:02,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_hwlock_of_dev_info [2022-11-22 01:26:02,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_hwlock_of_dev_info [2022-11-22 01:26:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_update_timer [2022-11-22 01:26:02,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_update_timer [2022-11-22 01:26:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-22 01:26:02,662 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-22 01:26:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_free [2022-11-22 01:26:02,662 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_free [2022-11-22 01:26:02,662 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_stop_timer [2022-11-22 01:26:02,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_stop_timer [2022-11-22 01:26:02,663 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 01:26:02,663 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 01:26:02,663 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_intr [2022-11-22 01:26:02,663 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_intr [2022-11-22 01:26:02,663 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-22 01:26:02,663 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-22 01:26:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure hw_add_addr [2022-11-22 01:26:02,664 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_add_addr [2022-11-22 01:26:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure port_r_mib_cnt [2022-11-22 01:26:02,664 INFO L138 BoogieDeclarations]: Found implementation of procedure port_r_mib_cnt [2022-11-22 01:26:02,664 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma_buf [2022-11-22 01:26:02,664 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma_buf [2022-11-22 01:26:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-22 01:26:02,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-22 01:26:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 01:26:02,665 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 01:26:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_72 [2022-11-22 01:26:02,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_72 [2022-11-22 01:26:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:26:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_multicast [2022-11-22 01:26:02,666 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_multicast [2022-11-22 01:26:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:26:02,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:26:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_regs_len [2022-11-22 01:26:02,666 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_regs_len [2022-11-22 01:26:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure hw_clr_multicast [2022-11-22 01:26:02,667 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_clr_multicast [2022-11-22 01:26:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure port_set_link_speed [2022-11-22 01:26:02,667 INFO L138 BoogieDeclarations]: Found implementation of procedure port_set_link_speed [2022-11-22 01:26:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure raise_gpio [2022-11-22 01:26:02,667 INFO L138 BoogieDeclarations]: Found implementation of procedure raise_gpio [2022-11-22 01:26:02,667 INFO L130 BoogieDeclarations]: Found specification of procedure port_w16 [2022-11-22 01:26:02,667 INFO L138 BoogieDeclarations]: Found implementation of procedure port_w16 [2022-11-22 01:26:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure empty_addr [2022-11-22 01:26:02,668 INFO L138 BoogieDeclarations]: Found implementation of procedure empty_addr [2022-11-22 01:26:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-22 01:26:02,668 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-22 01:26:02,668 INFO L130 BoogieDeclarations]: Found specification of procedure mib_read_work [2022-11-22 01:26:02,668 INFO L138 BoogieDeclarations]: Found implementation of procedure mib_read_work [2022-11-22 01:26:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure hw_enable_wol [2022-11-22 01:26:02,669 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_enable_wol [2022-11-22 01:26:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure port_set_stp_state [2022-11-22 01:26:02,669 INFO L138 BoogieDeclarations]: Found implementation of procedure port_set_stp_state [2022-11-22 01:26:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure hw_clr_wol_pme_status [2022-11-22 01:26:02,669 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_clr_wol_pme_status [2022-11-22 01:26:02,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_64 [2022-11-22 01:26:02,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_64 [2022-11-22 01:26:02,670 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_start_timer [2022-11-22 01:26:02,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_start_timer [2022-11-22 01:26:02,670 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-11-22 01:26:02,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-11-22 01:26:02,670 INFO L130 BoogieDeclarations]: Found specification of procedure copy_old_skb [2022-11-22 01:26:02,670 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_old_skb [2022-11-22 01:26:02,671 INFO L130 BoogieDeclarations]: Found specification of procedure hw_cfg_wol_pme [2022-11-22 01:26:02,671 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_cfg_wol_pme [2022-11-22 01:26:02,671 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_buf [2022-11-22 01:26:02,671 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_buf [2022-11-22 01:26:02,671 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_network_header [2022-11-22 01:26:02,671 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_network_header [2022-11-22 01:26:02,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 01:26:02,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 01:26:02,672 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-22 01:26:02,672 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-22 01:26:02,672 INFO L130 BoogieDeclarations]: Found specification of procedure pcidev_exit [2022-11-22 01:26:02,672 INFO L138 BoogieDeclarations]: Found implementation of procedure pcidev_exit [2022-11-22 01:26:02,672 INFO L130 BoogieDeclarations]: Found specification of procedure hw_enable [2022-11-22 01:26:02,672 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_enable [2022-11-22 01:26:02,673 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_alloc_soft_desc [2022-11-22 01:26:02,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_alloc_soft_desc [2022-11-22 01:26:02,673 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-22 01:26:02,673 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-22 01:26:02,673 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-22 01:26:02,673 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-22 01:26:02,673 INFO L130 BoogieDeclarations]: Found specification of procedure sw_cfg_broad_storm [2022-11-22 01:26:02,674 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_cfg_broad_storm [2022-11-22 01:26:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:26:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 01:26:02,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 01:26:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure port_set_power_saving [2022-11-22 01:26:02,674 INFO L138 BoogieDeclarations]: Found implementation of procedure port_set_power_saving [2022-11-22 01:26:02,674 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-11-22 01:26:02,675 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-11-22 01:26:02,675 INFO L130 BoogieDeclarations]: Found specification of procedure spi_reg [2022-11-22 01:26:02,675 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_reg [2022-11-22 01:26:04,162 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:26:04,166 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:26:08,100 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 01:26:24,467 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 01:26:24,693 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:26:27,955 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:26:27,956 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-22 01:26:27,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:26:27 BoogieIcfgContainer [2022-11-22 01:26:27,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:26:27,967 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:26:27,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:26:27,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:26:27,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:25:54" (1/3) ... [2022-11-22 01:26:27,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a0f1852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:26:27, skipping insertion in model container [2022-11-22 01:26:27,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:26:01" (2/3) ... [2022-11-22 01:26:27,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a0f1852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:26:27, skipping insertion in model container [2022-11-22 01:26:27,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:26:27" (3/3) ... [2022-11-22 01:26:27,981 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2022-11-22 01:26:28,006 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:26:28,007 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-22 01:26:28,136 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:26:28,145 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;@2a173f27, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:26:28,145 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-22 01:26:28,159 INFO L276 IsEmpty]: Start isEmpty. Operand has 2328 states, 1392 states have (on average 1.3160919540229885) internal successors, (1832), 1459 states have internal predecessors, (1832), 767 states have call successors, (767), 171 states have call predecessors, (767), 170 states have return successors, (761), 748 states have call predecessors, (761), 761 states have call successors, (761) [2022-11-22 01:26:28,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-11-22 01:26:28,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:26:28,184 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:26:28,185 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 01:26:28,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:26:28,191 INFO L85 PathProgramCache]: Analyzing trace with hash 2072390124, now seen corresponding path program 1 times [2022-11-22 01:26:28,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:26:28,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404497629] [2022-11-22 01:26:28,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:26:28,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:26:28,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:26:29,493 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-22 01:26:29,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:26:29,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404497629] [2022-11-22 01:26:29,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404497629] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:26:29,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:26:29,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:26:29,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802179723] [2022-11-22 01:26:29,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:26:29,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:26:29,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:26:29,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:26:29,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:26:29,569 INFO L87 Difference]: Start difference. First operand has 2328 states, 1392 states have (on average 1.3160919540229885) internal successors, (1832), 1459 states have internal predecessors, (1832), 767 states have call successors, (767), 171 states have call predecessors, (767), 170 states have return successors, (761), 748 states have call predecessors, (761), 761 states have call successors, (761) Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-22 01:26:33,431 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 01:26:38,063 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 01:26:41,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:26:41,978 INFO L93 Difference]: Finished difference Result 6808 states and 9907 transitions. [2022-11-22 01:26:41,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:26:41,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 211 [2022-11-22 01:26:41,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:26:42,040 INFO L225 Difference]: With dead ends: 6808 [2022-11-22 01:26:42,040 INFO L226 Difference]: Without dead ends: 4509 [2022-11-22 01:26:42,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:26:42,063 INFO L413 NwaCegarLoop]: 3519 mSDtfsCounter, 3188 mSDsluCounter, 2773 mSDsCounter, 0 mSdLazyCounter, 1061 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3191 SdHoareTripleChecker+Valid, 6292 SdHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1061 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:26:42,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3191 Valid, 6292 Invalid, 1069 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1061 Invalid, 1 Unknown, 0 Unchecked, 11.8s Time] [2022-11-22 01:26:42,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4509 states. [2022-11-22 01:26:42,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4509 to 4505. [2022-11-22 01:26:42,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4505 states, 2703 states have (on average 1.314095449500555) internal successors, (3552), 2832 states have internal predecessors, (3552), 1463 states have call successors, (1463), 337 states have call predecessors, (1463), 336 states have return successors, (1462), 1433 states have call predecessors, (1462), 1459 states have call successors, (1462) [2022-11-22 01:26:42,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4505 states to 4505 states and 6477 transitions. [2022-11-22 01:26:42,508 INFO L78 Accepts]: Start accepts. Automaton has 4505 states and 6477 transitions. Word has length 211 [2022-11-22 01:26:42,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:26:42,513 INFO L495 AbstractCegarLoop]: Abstraction has 4505 states and 6477 transitions. [2022-11-22 01:26:42,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-22 01:26:42,513 INFO L276 IsEmpty]: Start isEmpty. Operand 4505 states and 6477 transitions. [2022-11-22 01:26:42,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-11-22 01:26:42,531 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:26:42,532 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:26:42,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:26:42,533 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:26:42,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:26:42,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1736847847, now seen corresponding path program 1 times [2022-11-22 01:26:42,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:26:42,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490847496] [2022-11-22 01:26:42,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:26:42,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:26:42,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:26:43,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-22 01:26:43,502 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:26:43,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490847496] [2022-11-22 01:26:43,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490847496] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:26:43,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:26:43,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:26:43,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253287719] [2022-11-22 01:26:43,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:26:43,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:26:43,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:26:43,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:26:43,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:26:43,506 INFO L87 Difference]: Start difference. First operand 4505 states and 6477 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-22 01:26:47,136 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 01:26:55,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:26:55,483 INFO L93 Difference]: Finished difference Result 13399 states and 19289 transitions. [2022-11-22 01:26:55,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:26:55,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 215 [2022-11-22 01:26:55,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:26:55,556 INFO L225 Difference]: With dead ends: 13399 [2022-11-22 01:26:55,556 INFO L226 Difference]: Without dead ends: 8933 [2022-11-22 01:26:55,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:26:55,582 INFO L413 NwaCegarLoop]: 3571 mSDtfsCounter, 3234 mSDsluCounter, 2778 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3237 SdHoareTripleChecker+Valid, 6349 SdHoareTripleChecker+Invalid, 1066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:26:55,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3237 Valid, 6349 Invalid, 1066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1059 Invalid, 1 Unknown, 0 Unchecked, 11.4s Time] [2022-11-22 01:26:55,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8933 states. [2022-11-22 01:26:56,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8933 to 8904. [2022-11-22 01:26:56,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8904 states, 5358 states have (on average 1.314856289660321) internal successors, (7045), 5618 states have internal predecessors, (7045), 2872 states have call successors, (2872), 672 states have call predecessors, (2872), 671 states have return successors, (2910), 2809 states have call predecessors, (2910), 2868 states have call successors, (2910) [2022-11-22 01:26:56,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8904 states to 8904 states and 12827 transitions. [2022-11-22 01:26:56,365 INFO L78 Accepts]: Start accepts. Automaton has 8904 states and 12827 transitions. Word has length 215 [2022-11-22 01:26:56,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:26:56,366 INFO L495 AbstractCegarLoop]: Abstraction has 8904 states and 12827 transitions. [2022-11-22 01:26:56,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-22 01:26:56,368 INFO L276 IsEmpty]: Start isEmpty. Operand 8904 states and 12827 transitions. [2022-11-22 01:26:56,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-11-22 01:26:56,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:26:56,375 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:26:56,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:26:56,375 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:26:56,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:26:56,385 INFO L85 PathProgramCache]: Analyzing trace with hash 166563184, now seen corresponding path program 1 times [2022-11-22 01:26:56,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:26:56,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998853857] [2022-11-22 01:26:56,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:26:56,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:26:56,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:26:57,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-22 01:26:57,078 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:26:57,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998853857] [2022-11-22 01:26:57,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998853857] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:26:57,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:26:57,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:26:57,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382868953] [2022-11-22 01:26:57,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:26:57,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:26:57,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:26:57,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:26:57,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:26:57,084 INFO L87 Difference]: Start difference. First operand 8904 states and 12827 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-22 01:27:02,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:27:04,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:27:09,600 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 01:27:12,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:27:12,937 INFO L93 Difference]: Finished difference Result 26386 states and 38029 transitions. [2022-11-22 01:27:12,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:27:12,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 226 [2022-11-22 01:27:12,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:27:13,060 INFO L225 Difference]: With dead ends: 26386 [2022-11-22 01:27:13,060 INFO L226 Difference]: Without dead ends: 17521 [2022-11-22 01:27:13,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:27:13,110 INFO L413 NwaCegarLoop]: 3631 mSDtfsCounter, 3154 mSDsluCounter, 2787 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3156 SdHoareTripleChecker+Valid, 6418 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:27:13,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3156 Valid, 6418 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1071 Invalid, 1 Unknown, 0 Unchecked, 15.1s Time] [2022-11-22 01:27:13,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17521 states. [2022-11-22 01:27:14,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17521 to 17474. [2022-11-22 01:27:14,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17474 states, 10518 states have (on average 1.3138429359193764) internal successors, (13819), 11020 states have internal predecessors, (13819), 5620 states have call successors, (5620), 1334 states have call predecessors, (5620), 1333 states have return successors, (5762), 5491 states have call predecessors, (5762), 5616 states have call successors, (5762) [2022-11-22 01:27:14,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17474 states to 17474 states and 25201 transitions. [2022-11-22 01:27:14,151 INFO L78 Accepts]: Start accepts. Automaton has 17474 states and 25201 transitions. Word has length 226 [2022-11-22 01:27:14,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:27:14,153 INFO L495 AbstractCegarLoop]: Abstraction has 17474 states and 25201 transitions. [2022-11-22 01:27:14,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-22 01:27:14,153 INFO L276 IsEmpty]: Start isEmpty. Operand 17474 states and 25201 transitions. [2022-11-22 01:27:14,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-11-22 01:27:14,162 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:27:14,162 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:27:14,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:27:14,162 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:27:14,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:27:14,164 INFO L85 PathProgramCache]: Analyzing trace with hash -60410816, now seen corresponding path program 1 times [2022-11-22 01:27:14,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:27:14,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310306193] [2022-11-22 01:27:14,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:14,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:27:14,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:27:15,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1408 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1408 trivial. 0 not checked. [2022-11-22 01:27:15,300 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:27:15,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310306193] [2022-11-22 01:27:15,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310306193] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:27:15,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:27:15,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 01:27:15,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894483466] [2022-11-22 01:27:15,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:27:15,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:27:15,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:27:15,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:27:15,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:27:15,302 INFO L87 Difference]: Start difference. First operand 17474 states and 25201 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-22 01:27:19,164 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 01:27:38,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:27:40,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:27:40,050 INFO L93 Difference]: Finished difference Result 45478 states and 65139 transitions. [2022-11-22 01:27:40,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:27:40,051 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 237 [2022-11-22 01:27:40,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:27:40,220 INFO L225 Difference]: With dead ends: 45478 [2022-11-22 01:27:40,220 INFO L226 Difference]: Without dead ends: 28043 [2022-11-22 01:27:40,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:27:40,305 INFO L413 NwaCegarLoop]: 4048 mSDtfsCounter, 6269 mSDsluCounter, 6884 mSDsCounter, 0 mSdLazyCounter, 5075 mSolverCounterSat, 39 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6483 SdHoareTripleChecker+Valid, 10932 SdHoareTripleChecker+Invalid, 5115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 5075 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:27:40,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6483 Valid, 10932 Invalid, 5115 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [39 Valid, 5075 Invalid, 1 Unknown, 0 Unchecked, 22.9s Time] [2022-11-22 01:27:40,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28043 states. [2022-11-22 01:27:41,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28043 to 27973. [2022-11-22 01:27:41,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27973 states, 16755 states have (on average 1.3087436586093704) internal successors, (21928), 17572 states have internal predecessors, (21928), 8852 states have call successors, (8852), 2362 states have call predecessors, (8852), 2363 states have return successors, (9002), 8664 states have call predecessors, (9002), 8848 states have call successors, (9002) [2022-11-22 01:27:42,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27973 states to 27973 states and 39782 transitions. [2022-11-22 01:27:42,123 INFO L78 Accepts]: Start accepts. Automaton has 27973 states and 39782 transitions. Word has length 237 [2022-11-22 01:27:42,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:27:42,127 INFO L495 AbstractCegarLoop]: Abstraction has 27973 states and 39782 transitions. [2022-11-22 01:27:42,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-22 01:27:42,128 INFO L276 IsEmpty]: Start isEmpty. Operand 27973 states and 39782 transitions. [2022-11-22 01:27:42,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-11-22 01:27:42,133 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:27:42,133 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:27:42,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:27:42,134 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:27:42,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:27:42,134 INFO L85 PathProgramCache]: Analyzing trace with hash 593475371, now seen corresponding path program 1 times [2022-11-22 01:27:42,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:27:42,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81910037] [2022-11-22 01:27:42,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:42,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:27:42,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:27:42,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-22 01:27:42,666 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:27:42,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81910037] [2022-11-22 01:27:42,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81910037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:27:42,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:27:42,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:27:42,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612080973] [2022-11-22 01:27:42,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:27:42,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:27:42,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:27:42,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:27:42,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:27:42,670 INFO L87 Difference]: Start difference. First operand 27973 states and 39782 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-22 01:27:45,255 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 01:27:53,574 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 01:27:54,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:27:54,976 INFO L93 Difference]: Finished difference Result 65953 states and 92750 transitions. [2022-11-22 01:27:54,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:27:54,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 237 [2022-11-22 01:27:54,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:27:55,291 INFO L225 Difference]: With dead ends: 65953 [2022-11-22 01:27:55,292 INFO L226 Difference]: Without dead ends: 38019 [2022-11-22 01:27:55,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:27:55,384 INFO L413 NwaCegarLoop]: 3378 mSDtfsCounter, 2497 mSDsluCounter, 2737 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2500 SdHoareTripleChecker+Valid, 6115 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:27:55,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2500 Valid, 6115 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1106 Invalid, 1 Unknown, 0 Unchecked, 10.8s Time] [2022-11-22 01:27:55,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38019 states. [2022-11-22 01:27:57,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38019 to 37982. [2022-11-22 01:27:57,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37982 states, 22713 states have (on average 1.287500550345617) internal successors, (29243), 23838 states have internal predecessors, (29243), 11682 states have call successors, (11682), 3585 states have call predecessors, (11682), 3584 states have return successors, (11976), 11372 states have call predecessors, (11976), 11678 states have call successors, (11976) [2022-11-22 01:27:57,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37982 states to 37982 states and 52901 transitions. [2022-11-22 01:27:57,633 INFO L78 Accepts]: Start accepts. Automaton has 37982 states and 52901 transitions. Word has length 237 [2022-11-22 01:27:57,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:27:57,634 INFO L495 AbstractCegarLoop]: Abstraction has 37982 states and 52901 transitions. [2022-11-22 01:27:57,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-22 01:27:57,635 INFO L276 IsEmpty]: Start isEmpty. Operand 37982 states and 52901 transitions. [2022-11-22 01:27:57,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-11-22 01:27:57,639 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:27:57,639 INFO L195 NwaCegarLoop]: trace histogram [21, 19, 19, 19, 19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:27:57,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:27:57,640 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:27:57,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:27:57,640 INFO L85 PathProgramCache]: Analyzing trace with hash 2116771066, now seen corresponding path program 1 times [2022-11-22 01:27:57,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:27:57,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794614229] [2022-11-22 01:27:57,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:57,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:27:57,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:27:58,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1453 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1446 trivial. 0 not checked. [2022-11-22 01:27:58,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:27:58,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794614229] [2022-11-22 01:27:58,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794614229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:27:58,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:27:58,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:27:58,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508947445] [2022-11-22 01:27:58,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:27:58,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:27:58,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:27:58,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:27:58,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:27:58,056 INFO L87 Difference]: Start difference. First operand 37982 states and 52901 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-22 01:28:02,947 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 01:28:10,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:28:11,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:11,544 INFO L93 Difference]: Finished difference Result 108386 states and 151429 transitions. [2022-11-22 01:28:11,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:28:11,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 244 [2022-11-22 01:28:11,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:11,991 INFO L225 Difference]: With dead ends: 108386 [2022-11-22 01:28:11,991 INFO L226 Difference]: Without dead ends: 70443 [2022-11-22 01:28:12,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:28:12,180 INFO L413 NwaCegarLoop]: 3716 mSDtfsCounter, 3235 mSDsluCounter, 2787 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3238 SdHoareTripleChecker+Valid, 6503 SdHoareTripleChecker+Invalid, 1077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:12,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3238 Valid, 6503 Invalid, 1077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1072 Invalid, 1 Unknown, 0 Unchecked, 10.6s Time] [2022-11-22 01:28:12,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70443 states. [2022-11-22 01:28:16,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70443 to 70370. [2022-11-22 01:28:16,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70370 states, 42025 states have (on average 1.2907317073170732) internal successors, (54243), 44169 states have internal predecessors, (54243), 21829 states have call successors, (21829), 6522 states have call predecessors, (21829), 6513 states have return successors, (22383), 21192 states have call predecessors, (22383), 21825 states have call successors, (22383) [2022-11-22 01:28:16,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70370 states to 70370 states and 98455 transitions. [2022-11-22 01:28:16,752 INFO L78 Accepts]: Start accepts. Automaton has 70370 states and 98455 transitions. Word has length 244 [2022-11-22 01:28:16,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:16,753 INFO L495 AbstractCegarLoop]: Abstraction has 70370 states and 98455 transitions. [2022-11-22 01:28:16,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-22 01:28:16,753 INFO L276 IsEmpty]: Start isEmpty. Operand 70370 states and 98455 transitions. [2022-11-22 01:28:16,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-11-22 01:28:16,758 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:16,758 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:28:16,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:28:16,759 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 01:28:16,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:16,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1689076926, now seen corresponding path program 1 times [2022-11-22 01:28:16,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:16,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377352298] [2022-11-22 01:28:16,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:16,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:18,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1559 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1559 trivial. 0 not checked. [2022-11-22 01:28:18,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:18,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377352298] [2022-11-22 01:28:18,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377352298] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:28:18,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:28:18,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:28:18,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565752323] [2022-11-22 01:28:18,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:28:18,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:28:18,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:18,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:28:18,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:28:18,071 INFO L87 Difference]: Start difference. First operand 70370 states and 98455 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-22 01:28:23,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:28:24,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:28:26,935 WARN L539 Checker$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 01:28:36,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:36,114 INFO L93 Difference]: Finished difference Result 70376 states and 98460 transitions. [2022-11-22 01:28:36,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:28:36,115 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 253 [2022-11-22 01:28:36,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:36,449 INFO L225 Difference]: With dead ends: 70376 [2022-11-22 01:28:36,449 INFO L226 Difference]: Without dead ends: 70374 [2022-11-22 01:28:36,483 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 01:28:36,485 INFO L413 NwaCegarLoop]: 2786 mSDtfsCounter, 3244 mSDsluCounter, 5559 mSDsCounter, 0 mSdLazyCounter, 1584 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3255 SdHoareTripleChecker+Valid, 8345 SdHoareTripleChecker+Invalid, 1586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1584 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:36,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3255 Valid, 8345 Invalid, 1586 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1584 Invalid, 1 Unknown, 0 Unchecked, 15.5s Time] [2022-11-22 01:28:36,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70374 states. [2022-11-22 01:28:39,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70374 to 70374. [2022-11-22 01:28:39,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70374 states, 42028 states have (on average 1.2907109546016942) internal successors, (54246), 44172 states have internal predecessors, (54246), 21829 states have call successors, (21829), 6523 states have call predecessors, (21829), 6514 states have return successors, (22383), 21192 states have call predecessors, (22383), 21825 states have call successors, (22383) [2022-11-22 01:28:40,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70374 states to 70374 states and 98458 transitions. [2022-11-22 01:28:40,242 INFO L78 Accepts]: Start accepts. Automaton has 70374 states and 98458 transitions. Word has length 253 [2022-11-22 01:28:40,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:40,244 INFO L495 AbstractCegarLoop]: Abstraction has 70374 states and 98458 transitions. [2022-11-22 01:28:40,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-22 01:28:40,244 INFO L276 IsEmpty]: Start isEmpty. Operand 70374 states and 98458 transitions. [2022-11-22 01:28:40,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-11-22 01:28:40,251 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:40,251 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:28:40,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:28:40,252 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 01:28:40,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:40,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1282616662, now seen corresponding path program 1 times [2022-11-22 01:28:40,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:40,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359167692] [2022-11-22 01:28:40,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:40,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:40,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:41,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1561 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1559 trivial. 0 not checked. [2022-11-22 01:28:41,473 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:41,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359167692] [2022-11-22 01:28:41,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359167692] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:28:41,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:28:41,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:28:41,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824079148] [2022-11-22 01:28:41,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:28:41,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:28:41,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:41,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:28:41,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:28:41,476 INFO L87 Difference]: Start difference. First operand 70374 states and 98458 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-22 01:28:47,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:28:53,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:28:57,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:28:58,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:58,909 INFO L93 Difference]: Finished difference Result 70424 states and 98512 transitions. [2022-11-22 01:28:58,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:28:58,909 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 258 [2022-11-22 01:28:58,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:59,225 INFO L225 Difference]: With dead ends: 70424 [2022-11-22 01:28:59,225 INFO L226 Difference]: Without dead ends: 70422 [2022-11-22 01:28:59,259 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 01:28:59,259 INFO L413 NwaCegarLoop]: 2799 mSDtfsCounter, 3237 mSDsluCounter, 5615 mSDsCounter, 0 mSdLazyCounter, 1604 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3250 SdHoareTripleChecker+Valid, 8414 SdHoareTripleChecker+Invalid, 1606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1604 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:59,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3250 Valid, 8414 Invalid, 1606 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1604 Invalid, 1 Unknown, 0 Unchecked, 14.6s Time] [2022-11-22 01:28:59,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70422 states. [2022-11-22 01:29:02,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70422 to 70420. [2022-11-22 01:29:02,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70420 states, 42055 states have (on average 1.2906194269409108) internal successors, (54277), 44200 states have internal predecessors, (54277), 21838 states have call successors, (21838), 6532 states have call predecessors, (21838), 6524 states have return successors, (22394), 21201 states have call predecessors, (22394), 21834 states have call successors, (22394) [2022-11-22 01:29:03,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70420 states to 70420 states and 98509 transitions. [2022-11-22 01:29:03,017 INFO L78 Accepts]: Start accepts. Automaton has 70420 states and 98509 transitions. Word has length 258 [2022-11-22 01:29:03,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:29:03,018 INFO L495 AbstractCegarLoop]: Abstraction has 70420 states and 98509 transitions. [2022-11-22 01:29:03,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-22 01:29:03,018 INFO L276 IsEmpty]: Start isEmpty. Operand 70420 states and 98509 transitions. [2022-11-22 01:29:03,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-11-22 01:29:03,024 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:29:03,024 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:29:03,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:29:03,025 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 01:29:03,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:29:03,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1604057982, now seen corresponding path program 1 times [2022-11-22 01:29:03,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:29:03,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979391201] [2022-11-22 01:29:03,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:03,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:29:03,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:29:04,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1567 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1563 trivial. 0 not checked. [2022-11-22 01:29:04,221 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:29:04,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979391201] [2022-11-22 01:29:04,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979391201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:29:04,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:29:04,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:29:04,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178165458] [2022-11-22 01:29:04,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:29:04,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:29:04,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:29:04,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:29:04,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:29:04,224 INFO L87 Difference]: Start difference. First operand 70420 states and 98509 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-22 01:29:08,448 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 01:29:10,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:29:12,462 WARN L539 Checker$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 01:29:23,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:29:23,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:29:23,706 INFO L93 Difference]: Finished difference Result 70426 states and 98514 transitions. [2022-11-22 01:29:23,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:29:23,707 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 263 [2022-11-22 01:29:23,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:29:24,115 INFO L225 Difference]: With dead ends: 70426 [2022-11-22 01:29:24,116 INFO L226 Difference]: Without dead ends: 70424 [2022-11-22 01:29:24,147 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 01:29:24,150 INFO L413 NwaCegarLoop]: 2789 mSDtfsCounter, 3239 mSDsluCounter, 5559 mSDsCounter, 0 mSdLazyCounter, 1583 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3248 SdHoareTripleChecker+Valid, 8348 SdHoareTripleChecker+Invalid, 1586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1583 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:29:24,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3248 Valid, 8348 Invalid, 1586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1583 Invalid, 2 Unknown, 0 Unchecked, 16.3s Time] [2022-11-22 01:29:24,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70424 states. [2022-11-22 01:29:27,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70424 to 70424. [2022-11-22 01:29:27,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70424 states, 42058 states have (on average 1.2905986970374246) internal successors, (54280), 44203 states have internal predecessors, (54280), 21838 states have call successors, (21838), 6533 states have call predecessors, (21838), 6525 states have return successors, (22394), 21201 states have call predecessors, (22394), 21834 states have call successors, (22394) [2022-11-22 01:29:27,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70424 states to 70424 states and 98512 transitions. [2022-11-22 01:29:27,964 INFO L78 Accepts]: Start accepts. Automaton has 70424 states and 98512 transitions. Word has length 263 [2022-11-22 01:29:27,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:29:27,965 INFO L495 AbstractCegarLoop]: Abstraction has 70424 states and 98512 transitions. [2022-11-22 01:29:27,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-22 01:29:27,965 INFO L276 IsEmpty]: Start isEmpty. Operand 70424 states and 98512 transitions. [2022-11-22 01:29:27,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-11-22 01:29:27,972 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:29:27,972 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:29:27,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 01:29:27,973 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 01:29:27,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:29:27,974 INFO L85 PathProgramCache]: Analyzing trace with hash 721852884, now seen corresponding path program 1 times [2022-11-22 01:29:27,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:29:27,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537477511] [2022-11-22 01:29:27,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:27,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:29:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:29:29,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1585 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1579 trivial. 0 not checked. [2022-11-22 01:29:29,099 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:29:29,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537477511] [2022-11-22 01:29:29,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537477511] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:29:29,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:29:29,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:29:29,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942487181] [2022-11-22 01:29:29,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:29:29,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:29:29,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:29:29,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:29:29,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:29:29,101 INFO L87 Difference]: Start difference. First operand 70424 states and 98512 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-22 01:29:34,126 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 01:29:44,094 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 01:29:46,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:29:46,018 INFO L93 Difference]: Finished difference Result 77018 states and 105701 transitions. [2022-11-22 01:29:46,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:29:46,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 272 [2022-11-22 01:29:46,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:29:46,328 INFO L225 Difference]: With dead ends: 77018 [2022-11-22 01:29:46,328 INFO L226 Difference]: Without dead ends: 77016 [2022-11-22 01:29:46,353 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 01:29:46,354 INFO L413 NwaCegarLoop]: 2844 mSDtfsCounter, 3032 mSDsluCounter, 6033 mSDsCounter, 0 mSdLazyCounter, 1658 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3040 SdHoareTripleChecker+Valid, 8877 SdHoareTripleChecker+Invalid, 1661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1658 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:29:46,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3040 Valid, 8877 Invalid, 1661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1658 Invalid, 1 Unknown, 0 Unchecked, 13.0s Time] [2022-11-22 01:29:46,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77016 states. [2022-11-22 01:29:50,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77016 to 77016. [2022-11-22 01:29:50,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77016 states, 45717 states have (on average 1.277927248069646) internal successors, (58423), 47948 states have internal predecessors, (58423), 23360 states have call successors, (23360), 7944 states have call predecessors, (23360), 7936 states have return successors, (23916), 22723 states have call predecessors, (23916), 23356 states have call successors, (23916) [2022-11-22 01:29:50,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77016 states to 77016 states and 105699 transitions. [2022-11-22 01:29:50,794 INFO L78 Accepts]: Start accepts. Automaton has 77016 states and 105699 transitions. Word has length 272 [2022-11-22 01:29:50,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:29:50,794 INFO L495 AbstractCegarLoop]: Abstraction has 77016 states and 105699 transitions. [2022-11-22 01:29:50,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-22 01:29:50,795 INFO L276 IsEmpty]: Start isEmpty. Operand 77016 states and 105699 transitions. [2022-11-22 01:29:50,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-11-22 01:29:50,800 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:29:50,800 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:29:50,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 01:29:50,801 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 01:29:50,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:29:50,801 INFO L85 PathProgramCache]: Analyzing trace with hash -947331776, now seen corresponding path program 1 times [2022-11-22 01:29:50,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:29:50,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417167672] [2022-11-22 01:29:50,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:50,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:29:50,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:29:52,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1599 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1591 trivial. 0 not checked. [2022-11-22 01:29:52,040 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:29:52,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417167672] [2022-11-22 01:29:52,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417167672] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:29:52,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:29:52,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:29:52,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809206453] [2022-11-22 01:29:52,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:29:52,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:29:52,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:29:52,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:29:52,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:29:52,043 INFO L87 Difference]: Start difference. First operand 77016 states and 105699 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-11-22 01:29:57,424 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 []