./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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_acf019e1-e123-4dec-ac52-19908224ab4d/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf019e1-e123-4dec-ac52-19908224ab4d/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_acf019e1-e123-4dec-ac52-19908224ab4d/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf019e1-e123-4dec-ac52-19908224ab4d/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf019e1-e123-4dec-ac52-19908224ab4d/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_acf019e1-e123-4dec-ac52-19908224ab4d/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 678d1ed0889f06c506279e4c19484f47385b64dd1d4a949ec484624bf8468835 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:44:39,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:44:39,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:44:40,001 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:44:40,001 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:44:40,003 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:44:40,004 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:44:40,006 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:44:40,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:44:40,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:44:40,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:44:40,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:44:40,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:44:40,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:44:40,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:44:40,015 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:44:40,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:44:40,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:44:40,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:44:40,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:44:40,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:44:40,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:44:40,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:44:40,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:44:40,037 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:44:40,044 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:44:40,045 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:44:40,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:44:40,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:44:40,047 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:44:40,048 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:44:40,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:44:40,049 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:44:40,051 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:44:40,052 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:44:40,053 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:44:40,055 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:44:40,056 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:44:40,056 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:44:40,057 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:44:40,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:44:40,060 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf019e1-e123-4dec-ac52-19908224ab4d/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:44:40,101 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:44:40,102 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:44:40,102 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:44:40,103 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:44:40,103 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:44:40,104 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:44:40,104 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:44:40,104 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:44:40,104 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:44:40,105 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:44:40,106 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:44:40,106 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:44:40,106 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:44:40,106 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:44:40,107 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:44:40,107 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:44:40,107 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:44:40,107 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:44:40,109 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:44:40,109 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:44:40,109 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:44:40,109 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:44:40,110 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:44:40,110 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:44:40,110 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:44:40,110 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:44:40,111 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:44:40,111 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:44:40,112 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:44:40,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:44:40,112 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:44:40,112 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:44:40,113 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:44:40,113 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:44:40,113 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:44:40,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:44:40,113 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:44:40,114 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:44:40,114 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_acf019e1-e123-4dec-ac52-19908224ab4d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf019e1-e123-4dec-ac52-19908224ab4d/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 678d1ed0889f06c506279e4c19484f47385b64dd1d4a949ec484624bf8468835 [2022-11-22 01:44:40,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:44:40,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:44:40,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:44:40,495 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:44:40,496 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:44:40,497 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf019e1-e123-4dec-ac52-19908224ab4d/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2022-11-22 01:44:43,645 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:44:44,466 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:44:44,491 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf019e1-e123-4dec-ac52-19908224ab4d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2022-11-22 01:44:44,603 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf019e1-e123-4dec-ac52-19908224ab4d/bin/utaipan-g80aRyZoba/data/12d1fcca9/c7db99be5792421ba1d769e8e4461d54/FLAGdff41977b [2022-11-22 01:44:44,622 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf019e1-e123-4dec-ac52-19908224ab4d/bin/utaipan-g80aRyZoba/data/12d1fcca9/c7db99be5792421ba1d769e8e4461d54 [2022-11-22 01:44:44,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:44:44,629 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:44:44,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:44:44,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:44:44,637 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:44:44,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:44:44" (1/1) ... [2022-11-22 01:44:44,639 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f2763ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:44, skipping insertion in model container [2022-11-22 01:44:44,639 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:44:44" (1/1) ... [2022-11-22 01:44:44,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:44:44,874 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:44:52,111 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_acf019e1-e123-4dec-ac52-19908224ab4d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596672,596685] [2022-11-22 01:44:52,118 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_acf019e1-e123-4dec-ac52-19908224ab4d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596841,596854] [2022-11-22 01:44:52,118 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_acf019e1-e123-4dec-ac52-19908224ab4d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597008,597021] [2022-11-22 01:44:52,119 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_acf019e1-e123-4dec-ac52-19908224ab4d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597176,597189] [2022-11-22 01:44:52,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:44:52,319 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:44:53,233 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_acf019e1-e123-4dec-ac52-19908224ab4d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596672,596685] [2022-11-22 01:44:53,233 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_acf019e1-e123-4dec-ac52-19908224ab4d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[596841,596854] [2022-11-22 01:44:53,234 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_acf019e1-e123-4dec-ac52-19908224ab4d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597008,597021] [2022-11-22 01:44:53,235 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_acf019e1-e123-4dec-ac52-19908224ab4d/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[597176,597189] [2022-11-22 01:44:53,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:44:53,751 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:44:53,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:53 WrapperNode [2022-11-22 01:44:53,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:44:53,752 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:44:53,753 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:44:53,753 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:44:53,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:53" (1/1) ... [2022-11-22 01:44:53,947 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:53" (1/1) ... [2022-11-22 01:44:54,395 INFO L138 Inliner]: procedures = 824, calls = 5711, calls flagged for inlining = 430, calls inlined = 371, statements flattened = 11389 [2022-11-22 01:44:54,396 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:44:54,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:44:54,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:44:54,398 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:44:54,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:53" (1/1) ... [2022-11-22 01:44:54,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:53" (1/1) ... [2022-11-22 01:44:54,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:53" (1/1) ... [2022-11-22 01:44:54,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:53" (1/1) ... [2022-11-22 01:44:54,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:53" (1/1) ... [2022-11-22 01:44:54,873 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:53" (1/1) ... [2022-11-22 01:44:54,948 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:53" (1/1) ... [2022-11-22 01:44:54,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:53" (1/1) ... [2022-11-22 01:44:55,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:44:55,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:44:55,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:44:55,060 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:44:55,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:53" (1/1) ... [2022-11-22 01:44:55,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:44:55,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf019e1-e123-4dec-ac52-19908224ab4d/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:44:55,093 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf019e1-e123-4dec-ac52-19908224ab4d/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:44:55,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acf019e1-e123-4dec-ac52-19908224ab4d/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:44:55,141 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-22 01:44:55,141 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-22 01:44:55,141 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_remove [2022-11-22 01:44:55,141 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_remove [2022-11-22 01:44:55,142 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_led [2022-11-22 01:44:55,142 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_led [2022-11-22 01:44:55,142 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_alloc_rx_skbs [2022-11-22 01:44:55,142 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_alloc_rx_skbs [2022-11-22 01:44:55,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 01:44:55,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 01:44:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure rx_set_rss [2022-11-22 01:44:55,143 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_set_rss [2022-11-22 01:44:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_power_aux [2022-11-22 01:44:55,143 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_power_aux [2022-11-22 01:44:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 01:44:55,144 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 01:44:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2022-11-22 01:44:55,144 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2022-11-22 01:44:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-22 01:44:55,145 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-22 01:44:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_add_filter [2022-11-22 01:44:55,146 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_add_filter [2022-11-22 01:44:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-22 01:44:55,147 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-22 01:44:55,147 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2022-11-22 01:44:55,147 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2022-11-22 01:44:55,147 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2022-11-22 01:44:55,147 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2022-11-22 01:44:55,148 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-22 01:44:55,148 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-22 01:44:55,148 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 01:44:55,148 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 01:44:55,149 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_init_netdev [2022-11-22 01:44:55,149 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_init_netdev [2022-11-22 01:44:55,149 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-22 01:44:55,149 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-22 01:44:55,149 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-22 01:44:55,150 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-22 01:44:55,150 INFO L130 BoogieDeclarations]: Found specification of procedure netif_schedule_queue [2022-11-22 01:44:55,150 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_schedule_queue [2022-11-22 01:44:55,150 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_regs_len [2022-11-22 01:44:55,150 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_regs_len [2022-11-22 01:44:55,150 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-22 01:44:55,151 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-22 01:44:55,151 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_update [2022-11-22 01:44:55,152 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_update [2022-11-22 01:44:55,152 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 01:44:55,152 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 01:44:55,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 01:44:55,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 01:44:55,152 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_ramset [2022-11-22 01:44:55,153 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_ramset [2022-11-22 01:44:55,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:44:55,153 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_update_features [2022-11-22 01:44:55,153 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_update_features [2022-11-22 01:44:55,153 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_netpoll [2022-11-22 01:44:55,154 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_netpoll [2022-11-22 01:44:55,154 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-22 01:44:55,154 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-22 01:44:55,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 01:44:55,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 01:44:55,154 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-11-22 01:44:55,155 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-11-22 01:44:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-22 01:44:55,155 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-22 01:44:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-22 01:44:55,156 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-22 01:44:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 01:44:55,157 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 01:44:55,157 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_lock [2022-11-22 01:44:55,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_lock [2022-11-22 01:44:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-22 01:44:55,158 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-22 01:44:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-22 01:44:55,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-22 01:44:55,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:44:55,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-22 01:44:55,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-22 01:44:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 01:44:55,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 01:44:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_add [2022-11-22 01:44:55,160 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_add [2022-11-22 01:44:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-11-22 01:44:55,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-11-22 01:44:55,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-22 01:44:55,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-22 01:44:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2022-11-22 01:44:55,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2022-11-22 01:44:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2022-11-22 01:44:55,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2022-11-22 01:44:55,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-22 01:44:55,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-22 01:44:55,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:44:55,163 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_map_skb [2022-11-22 01:44:55,163 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_map_skb [2022-11-22 01:44:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_resume [2022-11-22 01:44:55,164 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_resume [2022-11-22 01:44:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure roundup_ring_size [2022-11-22 01:44:55,164 INFO L138 BoogieDeclarations]: Found implementation of procedure roundup_ring_size [2022-11-22 01:44:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 01:44:55,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 01:44:55,165 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 01:44:55,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 01:44:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:44:55,166 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-22 01:44:55,169 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read32 [2022-11-22 01:44:55,169 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read32 [2022-11-22 01:44:55,170 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-22 01:44:55,170 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-22 01:44:55,171 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_disable [2022-11-22 01:44:55,171 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_disable [2022-11-22 01:44:55,172 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_clean [2022-11-22 01:44:55,172 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_clean [2022-11-22 01:44:55,172 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-11-22 01:44:55,178 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-11-22 01:44:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 01:44:55,179 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 01:44:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_down [2022-11-22 01:44:55,179 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_down [2022-11-22 01:44:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-22 01:44:55,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-22 01:44:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_reinit [2022-11-22 01:44:55,180 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_reinit [2022-11-22 01:44:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-22 01:44:55,180 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-22 01:44:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read16 [2022-11-22 01:44:55,181 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read16 [2022-11-22 01:44:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:44:55,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:44:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write16 [2022-11-22 01:44:55,181 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write16 [2022-11-22 01:44:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-22 01:44:55,182 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-22 01:44:55,182 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_free_buffers [2022-11-22 01:44:55,182 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_free_buffers [2022-11-22 01:44:55,182 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-22 01:44:55,182 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-22 01:44:55,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:44:55,183 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-22 01:44:55,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-22 01:44:55,183 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-11-22 01:44:55,183 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-11-22 01:44:55,183 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2022-11-22 01:44:55,183 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2022-11-22 01:44:55,184 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-22 01:44:55,184 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-22 01:44:55,184 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read32 [2022-11-22 01:44:55,184 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read32 [2022-11-22 01:44:55,184 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-22 01:44:55,184 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_multicast [2022-11-22 01:44:55,184 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_multicast [2022-11-22 01:44:55,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-22 01:44:55,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-22 01:44:55,185 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_prefetch_init [2022-11-22 01:44:55,185 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_prefetch_init [2022-11-22 01:44:55,185 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_reset [2022-11-22 01:44:55,185 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_reset [2022-11-22 01:44:55,186 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-22 01:44:55,186 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-22 01:44:55,186 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-22 01:44:55,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-22 01:44:55,186 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-22 01:44:55,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-22 01:44:55,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2022-11-22 01:44:55,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2022-11-22 01:44:55,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 01:44:55,187 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 01:44:55,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-22 01:44:55,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-22 01:44:55,188 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-11-22 01:44:55,188 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-11-22 01:44:55,188 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vpd_wait [2022-11-22 01:44:55,188 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vpd_wait [2022-11-22 01:44:55,188 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-22 01:44:55,188 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-22 01:44:55,189 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_shutdown [2022-11-22 01:44:55,189 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_shutdown [2022-11-22 01:44:55,189 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read16 [2022-11-22 01:44:55,189 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read16 [2022-11-22 01:44:55,189 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_le [2022-11-22 01:44:55,189 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_le [2022-11-22 01:44:55,189 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_stop [2022-11-22 01:44:55,190 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_stop [2022-11-22 01:44:55,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:44:55,190 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 01:44:55,190 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 01:44:55,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:44:55,190 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_down [2022-11-22 01:44:55,191 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_down [2022-11-22 01:44:55,191 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-22 01:44:55,191 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-22 01:44:55,191 INFO L130 BoogieDeclarations]: Found specification of procedure __gm_phy_read [2022-11-22 01:44:55,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __gm_phy_read [2022-11-22 01:44:55,191 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 01:44:55,192 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 01:44:55,192 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2022-11-22 01:44:55,192 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2022-11-22 01:44:55,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-22 01:44:55,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-22 01:44:55,192 INFO L130 BoogieDeclarations]: Found specification of procedure gma_write16 [2022-11-22 01:44:55,193 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_write16 [2022-11-22 01:44:55,193 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-22 01:44:55,193 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-22 01:44:55,193 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_next_rx [2022-11-22 01:44:55,193 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_next_rx [2022-11-22 01:44:55,193 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-22 01:44:55,193 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-22 01:44:55,194 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2022-11-22 01:44:55,194 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2022-11-22 01:44:55,194 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_eeprom_len [2022-11-22 01:44:55,194 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_eeprom_len [2022-11-22 01:44:55,194 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 01:44:55,194 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 01:44:55,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_79 [2022-11-22 01:44:55,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_79 [2022-11-22 01:44:55,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:44:55,195 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_us2clk [2022-11-22 01:44:55,195 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_us2clk [2022-11-22 01:44:55,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:44:55,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:44:55,196 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2022-11-22 01:44:55,196 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2022-11-22 01:44:55,196 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-22 01:44:55,196 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-22 01:44:55,196 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2022-11-22 01:44:55,197 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2022-11-22 01:44:55,197 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-22 01:44:55,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-22 01:44:55,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2022-11-22 01:44:55,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2022-11-22 01:44:55,197 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-22 01:44:55,198 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-22 01:44:55,202 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_qset [2022-11-22 01:44:55,202 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_qset [2022-11-22 01:44:55,202 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_mhz [2022-11-22 01:44:55,203 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_mhz [2022-11-22 01:44:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-22 01:44:55,203 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-22 01:44:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 01:44:55,203 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 01:44:55,203 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-22 01:44:55,205 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-22 01:44:55,205 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats32 [2022-11-22 01:44:55,205 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats32 [2022-11-22 01:44:55,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:44:55,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:44:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-22 01:44:55,206 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-22 01:44:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_supported_modes [2022-11-22 01:44:55,206 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_supported_modes [2022-11-22 01:44:55,206 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_read [2022-11-22 01:44:55,206 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_read [2022-11-22 01:44:55,207 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_alloc [2022-11-22 01:44:55,207 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_alloc [2022-11-22 01:44:55,207 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2022-11-22 01:44:55,207 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2022-11-22 01:44:55,207 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_unlock [2022-11-22 01:44:55,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_unlock [2022-11-22 01:44:55,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 01:44:55,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 01:44:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_show_addr [2022-11-22 01:44:55,208 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_show_addr [2022-11-22 01:44:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-22 01:44:55,208 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-22 01:44:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_close [2022-11-22 01:44:55,209 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_close [2022-11-22 01:44:55,209 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 01:44:55,209 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 01:44:55,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 01:44:55,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 01:44:55,209 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_start [2022-11-22 01:44:55,209 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_start [2022-11-22 01:44:55,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:44:55,210 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-11-22 01:44:55,210 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-11-22 01:44:55,210 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats64 [2022-11-22 01:44:55,210 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats64 [2022-11-22 01:44:55,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-22 01:44:55,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-22 01:44:55,211 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-22 01:44:55,211 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-22 01:44:55,211 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 01:44:55,211 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 01:44:55,211 INFO L130 BoogieDeclarations]: Found specification of procedure pci_is_pcie [2022-11-22 01:44:55,211 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_is_pcie [2022-11-22 01:44:55,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 01:44:55,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-22 01:44:55,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-22 01:44:55,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:44:55,212 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 01:44:55,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 01:44:55,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_80 [2022-11-22 01:44:55,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_80 [2022-11-22 01:44:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 01:44:55,213 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 01:44:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-22 01:44:55,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-22 01:44:55,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 01:44:55,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 01:44:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_up [2022-11-22 01:44:55,214 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_up [2022-11-22 01:44:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-11-22 01:44:55,214 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-11-22 01:44:55,214 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_unmap [2022-11-22 01:44:55,214 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_unmap [2022-11-22 01:44:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_put_idx [2022-11-22 01:44:55,215 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_put_idx [2022-11-22 01:44:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:44:55,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:44:55,215 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_dma_map [2022-11-22 01:44:55,215 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_dma_map [2022-11-22 01:44:55,216 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:44:55,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:44:55,216 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_power_up [2022-11-22 01:44:55,216 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_power_up [2022-11-22 01:44:55,216 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_init [2022-11-22 01:44:55,216 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_init [2022-11-22 01:44:55,216 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-22 01:44:55,217 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-22 01:44:55,217 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_complete [2022-11-22 01:44:55,217 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_complete [2022-11-22 01:44:55,217 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2022-11-22 01:44:55,217 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2022-11-22 01:44:55,217 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-22 01:44:55,218 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-22 01:44:55,218 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read16 [2022-11-22 01:44:55,218 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read16 [2022-11-22 01:44:55,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:44:55,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 01:44:55,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 01:44:55,218 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_up [2022-11-22 01:44:55,219 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_up [2022-11-22 01:44:55,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 01:44:55,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 01:44:55,219 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_timeout [2022-11-22 01:44:55,219 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_timeout [2022-11-22 01:44:55,219 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-22 01:44:55,220 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-22 01:44:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_wol_supported [2022-11-22 01:44:55,220 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_wol_supported [2022-11-22 01:44:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write32 [2022-11-22 01:44:55,220 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write32 [2022-11-22 01:44:55,220 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-11-22 01:44:55,220 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-11-22 01:44:55,221 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_submit [2022-11-22 01:44:55,221 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_submit [2022-11-22 01:44:55,221 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-22 01:44:55,221 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-22 01:44:55,221 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-22 01:44:55,221 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-22 01:44:55,221 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vlan_mode [2022-11-22 01:44:55,222 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vlan_mode [2022-11-22 01:44:55,222 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read8 [2022-11-22 01:44:55,222 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read8 [2022-11-22 01:44:55,222 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2022-11-22 01:44:55,222 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2022-11-22 01:44:55,222 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read32 [2022-11-22 01:44:55,223 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read32 [2022-11-22 01:44:55,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_phy_lock_of_sky2_port [2022-11-22 01:44:55,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_phy_lock_of_sky2_port [2022-11-22 01:44:55,223 INFO L130 BoogieDeclarations]: Found specification of procedure gma_set_addr [2022-11-22 01:44:55,223 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_set_addr [2022-11-22 01:44:55,223 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-22 01:44:55,223 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-22 01:44:55,224 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-11-22 01:44:55,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-11-22 01:44:55,224 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-22 01:44:55,224 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-22 01:44:55,224 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-22 01:44:55,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-22 01:44:55,225 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-22 01:44:55,225 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-22 01:44:55,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:44:55,225 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_nway_reset [2022-11-22 01:44:55,225 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_nway_reset [2022-11-22 01:44:55,225 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-22 01:44:55,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-22 01:44:55,226 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-22 01:44:55,226 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-22 01:44:55,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-22 01:44:55,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-22 01:44:55,226 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-22 01:44:55,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-22 01:44:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-22 01:44:55,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-22 01:44:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 01:44:55,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 01:44:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure tx_avail [2022-11-22 01:44:55,227 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_avail [2022-11-22 01:44:55,227 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_unmap_skb [2022-11-22 01:44:55,228 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_unmap_skb [2022-11-22 01:44:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-22 01:44:55,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-22 01:44:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_clk2us [2022-11-22 01:44:55,228 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_clk2us [2022-11-22 01:44:55,228 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_tx_stfwd [2022-11-22 01:44:55,228 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_tx_stfwd [2022-11-22 01:44:55,229 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_enable_rx_tx [2022-11-22 01:44:55,229 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_enable_rx_tx [2022-11-22 01:44:55,229 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 01:44:55,229 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 01:44:55,229 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-11-22 01:44:55,229 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-11-22 01:44:55,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sky2_cleanup_module_22_2 [2022-11-22 01:44:55,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sky2_cleanup_module_22_2 [2022-11-22 01:44:55,230 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-22 01:44:55,230 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-22 01:44:55,230 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_setup_irq [2022-11-22 01:44:55,230 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_setup_irq [2022-11-22 01:44:55,230 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 01:44:55,231 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 01:44:55,231 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-11-22 01:44:55,231 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-11-22 01:44:55,231 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-22 01:44:55,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-22 01:44:55,231 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_is_copper [2022-11-22 01:44:55,232 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_is_copper [2022-11-22 01:44:55,232 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-22 01:44:55,232 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-22 01:44:55,232 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_suspend [2022-11-22 01:44:55,232 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_suspend [2022-11-22 01:44:55,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_6 [2022-11-22 01:44:55,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_6 [2022-11-22 01:44:55,233 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-22 01:44:55,233 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-22 01:44:55,233 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write16 [2022-11-22 01:44:55,233 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write16 [2022-11-22 01:44:55,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 01:44:55,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 01:44:55,233 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-22 01:44:55,234 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-22 01:44:55,234 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write8 [2022-11-22 01:44:55,234 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write8 [2022-11-22 01:44:55,234 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_write [2022-11-22 01:44:55,234 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_write [2022-11-22 01:44:55,234 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-11-22 01:44:55,235 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-11-22 01:44:55,235 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-22 01:44:55,235 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-22 01:44:55,235 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write32 [2022-11-22 01:44:55,235 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write32 [2022-11-22 01:44:55,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:44:55,235 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read64 [2022-11-22 01:44:55,236 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read64 [2022-11-22 01:44:55,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 01:44:55,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 01:44:55,236 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-22 01:44:55,236 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-22 01:44:55,236 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_open [2022-11-22 01:44:55,237 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_open [2022-11-22 01:44:55,237 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-22 01:44:56,882 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:44:56,891 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:44:57,033 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 01:45:10,841 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 01:45:11,110 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:45:14,704 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:45:14,704 INFO L300 CfgBuilder]: Removed 12 assume(true) statements. [2022-11-22 01:45:14,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:45:14 BoogieIcfgContainer [2022-11-22 01:45:14,711 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:45:14,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:45:14,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:45:14,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:45:14,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:44:44" (1/3) ... [2022-11-22 01:45:14,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74dfb6a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:45:14, skipping insertion in model container [2022-11-22 01:45:14,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:44:53" (2/3) ... [2022-11-22 01:45:14,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74dfb6a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:45:14, skipping insertion in model container [2022-11-22 01:45:14,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:45:14" (3/3) ... [2022-11-22 01:45:14,720 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2022-11-22 01:45:14,740 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:45:14,741 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-22 01:45:14,848 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:45:14,854 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;@5631de1d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:45:14,855 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-22 01:45:14,876 INFO L276 IsEmpty]: Start isEmpty. Operand has 3406 states, 1945 states have (on average 1.3120822622107968) internal successors, (2552), 2027 states have internal predecessors, (2552), 1244 states have call successors, (1244), 216 states have call predecessors, (1244), 215 states have return successors, (1234), 1209 states have call predecessors, (1234), 1234 states have call successors, (1234) [2022-11-22 01:45:14,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2022-11-22 01:45:14,919 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:45:14,920 INFO L195 NwaCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:45:14,921 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 01:45:14,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:45:14,926 INFO L85 PathProgramCache]: Analyzing trace with hash 606537810, now seen corresponding path program 1 times [2022-11-22 01:45:14,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:45:14,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474460638] [2022-11-22 01:45:14,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:14,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:45:15,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:16,631 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4032 trivial. 0 not checked. [2022-11-22 01:45:16,631 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:45:16,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474460638] [2022-11-22 01:45:16,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474460638] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:45:16,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:45:16,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:45:16,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543245698] [2022-11-22 01:45:16,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:45:16,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:45:16,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:45:16,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:45:16,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:45:16,697 INFO L87 Difference]: Start difference. First operand has 3406 states, 1945 states have (on average 1.3120822622107968) internal successors, (2552), 2027 states have internal predecessors, (2552), 1244 states have call successors, (1244), 216 states have call predecessors, (1244), 215 states have return successors, (1234), 1209 states have call predecessors, (1234), 1234 states have call successors, (1234) Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-22 01:45:21,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:45:21,993 INFO L93 Difference]: Finished difference Result 9966 states and 14922 transitions. [2022-11-22 01:45:21,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:45:21,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 343 [2022-11-22 01:45:21,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:45:22,062 INFO L225 Difference]: With dead ends: 9966 [2022-11-22 01:45:22,063 INFO L226 Difference]: Without dead ends: 6611 [2022-11-22 01:45:22,090 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 01:45:22,093 INFO L413 NwaCegarLoop]: 5579 mSDtfsCounter, 4809 mSDsluCounter, 4359 mSDsCounter, 0 mSdLazyCounter, 1208 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4809 SdHoareTripleChecker+Valid, 9938 SdHoareTripleChecker+Invalid, 1217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:45:22,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4809 Valid, 9938 Invalid, 1217 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1208 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-22 01:45:22,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6611 states. [2022-11-22 01:45:22,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6611 to 6607. [2022-11-22 01:45:22,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6607 states, 3789 states have (on average 1.3101082079704407) internal successors, (4964), 3952 states have internal predecessors, (4964), 2389 states have call successors, (2389), 427 states have call predecessors, (2389), 426 states have return successors, (2385), 2335 states have call predecessors, (2385), 2385 states have call successors, (2385) [2022-11-22 01:45:22,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6607 states to 6607 states and 9738 transitions. [2022-11-22 01:45:22,665 INFO L78 Accepts]: Start accepts. Automaton has 6607 states and 9738 transitions. Word has length 343 [2022-11-22 01:45:22,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:45:22,670 INFO L495 AbstractCegarLoop]: Abstraction has 6607 states and 9738 transitions. [2022-11-22 01:45:22,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-22 01:45:22,671 INFO L276 IsEmpty]: Start isEmpty. Operand 6607 states and 9738 transitions. [2022-11-22 01:45:22,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2022-11-22 01:45:22,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:45:22,693 INFO L195 NwaCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:45:22,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:45:22,693 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 01:45:22,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:45:22,694 INFO L85 PathProgramCache]: Analyzing trace with hash -885330976, now seen corresponding path program 1 times [2022-11-22 01:45:22,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:45:22,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852120243] [2022-11-22 01:45:22,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:22,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:45:22,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:23,791 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4032 trivial. 0 not checked. [2022-11-22 01:45:23,791 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:45:23,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852120243] [2022-11-22 01:45:23,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852120243] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:45:23,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:45:23,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:45:23,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437536260] [2022-11-22 01:45:23,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:45:23,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:45:23,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:45:23,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:45:23,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:45:23,803 INFO L87 Difference]: Start difference. First operand 6607 states and 9738 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-22 01:45:28,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:45:28,247 INFO L93 Difference]: Finished difference Result 15909 states and 23413 transitions. [2022-11-22 01:45:28,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:45:28,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 370 [2022-11-22 01:45:28,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:45:28,314 INFO L225 Difference]: With dead ends: 15909 [2022-11-22 01:45:28,314 INFO L226 Difference]: Without dead ends: 9367 [2022-11-22 01:45:28,350 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 01:45:28,351 INFO L413 NwaCegarLoop]: 5479 mSDtfsCounter, 4427 mSDsluCounter, 4349 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4427 SdHoareTripleChecker+Valid, 9828 SdHoareTripleChecker+Invalid, 1253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:45:28,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4427 Valid, 9828 Invalid, 1253 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-22 01:45:28,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9367 states. [2022-11-22 01:45:28,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9367 to 9339. [2022-11-22 01:45:28,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9339 states, 5356 states have (on average 1.3052651232262882) internal successors, (6991), 5584 states have internal predecessors, (6991), 3358 states have call successors, (3358), 624 states have call predecessors, (3358), 622 states have return successors, (3354), 3276 states have call predecessors, (3354), 3354 states have call successors, (3354) [2022-11-22 01:45:29,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9339 states to 9339 states and 13703 transitions. [2022-11-22 01:45:29,012 INFO L78 Accepts]: Start accepts. Automaton has 9339 states and 13703 transitions. Word has length 370 [2022-11-22 01:45:29,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:45:29,019 INFO L495 AbstractCegarLoop]: Abstraction has 9339 states and 13703 transitions. [2022-11-22 01:45:29,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-22 01:45:29,021 INFO L276 IsEmpty]: Start isEmpty. Operand 9339 states and 13703 transitions. [2022-11-22 01:45:29,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2022-11-22 01:45:29,033 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:45:29,034 INFO L195 NwaCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:45:29,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:45:29,034 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 01:45:29,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:45:29,035 INFO L85 PathProgramCache]: Analyzing trace with hash 730082415, now seen corresponding path program 1 times [2022-11-22 01:45:29,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:45:29,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665370244] [2022-11-22 01:45:29,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:29,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:45:29,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:29,990 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4032 trivial. 0 not checked. [2022-11-22 01:45:29,990 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:45:29,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665370244] [2022-11-22 01:45:29,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665370244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:45:29,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:45:29,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:45:29,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145884218] [2022-11-22 01:45:29,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:45:29,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:45:29,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:45:29,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:45:29,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:45:29,994 INFO L87 Difference]: Start difference. First operand 9339 states and 13703 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-22 01:45:35,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:45:35,943 INFO L93 Difference]: Finished difference Result 27335 states and 40107 transitions. [2022-11-22 01:45:35,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:45:35,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 371 [2022-11-22 01:45:35,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:45:36,055 INFO L225 Difference]: With dead ends: 27335 [2022-11-22 01:45:36,056 INFO L226 Difference]: Without dead ends: 18061 [2022-11-22 01:45:36,102 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 01:45:36,103 INFO L413 NwaCegarLoop]: 6412 mSDtfsCounter, 4643 mSDsluCounter, 4337 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4643 SdHoareTripleChecker+Valid, 10749 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:45:36,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4643 Valid, 10749 Invalid, 1406 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-22 01:45:36,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18061 states. [2022-11-22 01:45:37,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18061 to 18027. [2022-11-22 01:45:37,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18027 states, 10332 states have (on average 1.2994579945799458) internal successors, (13426), 10773 states have internal predecessors, (13426), 6475 states have call successors, (6475), 1220 states have call predecessors, (6475), 1217 states have return successors, (6471), 6318 states have call predecessors, (6471), 6471 states have call successors, (6471) [2022-11-22 01:45:37,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18027 states to 18027 states and 26372 transitions. [2022-11-22 01:45:37,402 INFO L78 Accepts]: Start accepts. Automaton has 18027 states and 26372 transitions. Word has length 371 [2022-11-22 01:45:37,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:45:37,403 INFO L495 AbstractCegarLoop]: Abstraction has 18027 states and 26372 transitions. [2022-11-22 01:45:37,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-22 01:45:37,404 INFO L276 IsEmpty]: Start isEmpty. Operand 18027 states and 26372 transitions. [2022-11-22 01:45:37,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-11-22 01:45:37,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:45:37,417 INFO L195 NwaCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:45:37,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:45:37,418 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 01:45:37,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:45:37,419 INFO L85 PathProgramCache]: Analyzing trace with hash -721808842, now seen corresponding path program 1 times [2022-11-22 01:45:37,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:45:37,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984401135] [2022-11-22 01:45:37,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:37,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:45:37,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:38,055 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4032 trivial. 0 not checked. [2022-11-22 01:45:38,055 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:45:38,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984401135] [2022-11-22 01:45:38,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984401135] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:45:38,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:45:38,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:45:38,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207102594] [2022-11-22 01:45:38,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:45:38,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:45:38,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:45:38,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:45:38,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:45:38,059 INFO L87 Difference]: Start difference. First operand 18027 states and 26372 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-22 01:45:43,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:45:43,266 INFO L93 Difference]: Finished difference Result 43876 states and 63729 transitions. [2022-11-22 01:45:43,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:45:43,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 373 [2022-11-22 01:45:43,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:45:43,407 INFO L225 Difference]: With dead ends: 43876 [2022-11-22 01:45:43,408 INFO L226 Difference]: Without dead ends: 25914 [2022-11-22 01:45:43,477 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 01:45:43,478 INFO L413 NwaCegarLoop]: 5391 mSDtfsCounter, 3731 mSDsluCounter, 4332 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3731 SdHoareTripleChecker+Valid, 9723 SdHoareTripleChecker+Invalid, 1259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:45:43,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3731 Valid, 9723 Invalid, 1259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1252 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-22 01:45:43,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25914 states. [2022-11-22 01:45:45,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25914 to 25881. [2022-11-22 01:45:45,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25881 states, 14561 states have (on average 1.2762859693702355) internal successors, (18584), 15199 states have internal predecessors, (18584), 9395 states have call successors, (9395), 1930 states have call predecessors, (9395), 1922 states have return successors, (9401), 9158 states have call predecessors, (9401), 9391 states have call successors, (9401) [2022-11-22 01:45:45,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25881 states to 25881 states and 37380 transitions. [2022-11-22 01:45:45,738 INFO L78 Accepts]: Start accepts. Automaton has 25881 states and 37380 transitions. Word has length 373 [2022-11-22 01:45:45,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:45:45,741 INFO L495 AbstractCegarLoop]: Abstraction has 25881 states and 37380 transitions. [2022-11-22 01:45:45,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-22 01:45:45,741 INFO L276 IsEmpty]: Start isEmpty. Operand 25881 states and 37380 transitions. [2022-11-22 01:45:45,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2022-11-22 01:45:45,755 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:45:45,756 INFO L195 NwaCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:45:45,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:45:45,756 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 01:45:45,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:45:45,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1002378500, now seen corresponding path program 1 times [2022-11-22 01:45:45,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:45:45,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3738182] [2022-11-22 01:45:45,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:45,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:45:45,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:46,328 INFO L134 CoverageAnalysis]: Checked inductivity of 4035 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4035 trivial. 0 not checked. [2022-11-22 01:45:46,328 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:45:46,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3738182] [2022-11-22 01:45:46,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3738182] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:45:46,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:45:46,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:45:46,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371005544] [2022-11-22 01:45:46,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:45:46,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:45:46,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:45:46,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:45:46,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:45:46,332 INFO L87 Difference]: Start difference. First operand 25881 states and 37380 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-22 01:45:51,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:45:51,315 INFO L93 Difference]: Finished difference Result 67341 states and 97391 transitions. [2022-11-22 01:45:51,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:45:51,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 395 [2022-11-22 01:45:51,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:45:51,567 INFO L225 Difference]: With dead ends: 67341 [2022-11-22 01:45:51,567 INFO L226 Difference]: Without dead ends: 41525 [2022-11-22 01:45:51,693 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 01:45:51,695 INFO L413 NwaCegarLoop]: 5842 mSDtfsCounter, 4790 mSDsluCounter, 4368 mSDsCounter, 0 mSdLazyCounter, 1297 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4790 SdHoareTripleChecker+Valid, 10210 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:45:51,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4790 Valid, 10210 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1297 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-22 01:45:52,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41525 states. [2022-11-22 01:45:54,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41525 to 41481. [2022-11-22 01:45:54,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41481 states, 23571 states have (on average 1.2813626914428746) internal successors, (30203), 24604 states have internal predecessors, (30203), 14872 states have call successors, (14872), 3050 states have call predecessors, (14872), 3035 states have return successors, (14888), 14472 states have call predecessors, (14888), 14868 states have call successors, (14888) [2022-11-22 01:45:54,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41481 states to 41481 states and 59963 transitions. [2022-11-22 01:45:54,813 INFO L78 Accepts]: Start accepts. Automaton has 41481 states and 59963 transitions. Word has length 395 [2022-11-22 01:45:54,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:45:54,814 INFO L495 AbstractCegarLoop]: Abstraction has 41481 states and 59963 transitions. [2022-11-22 01:45:54,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-22 01:45:54,814 INFO L276 IsEmpty]: Start isEmpty. Operand 41481 states and 59963 transitions. [2022-11-22 01:45:54,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2022-11-22 01:45:54,827 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:45:54,827 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:45:54,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:45:54,827 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-22 01:45:54,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:45:54,828 INFO L85 PathProgramCache]: Analyzing trace with hash -918121465, now seen corresponding path program 1 times [2022-11-22 01:45:54,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:45:54,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50058495] [2022-11-22 01:45:54,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:45:54,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:45:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:45:56,634 INFO L134 CoverageAnalysis]: Checked inductivity of 4529 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4529 trivial. 0 not checked. [2022-11-22 01:45:56,635 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:45:56,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50058495] [2022-11-22 01:45:56,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50058495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:45:56,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:45:56,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:45:56,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933212106] [2022-11-22 01:45:56,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:45:56,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:45:56,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:45:56,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:45:56,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:45:56,637 INFO L87 Difference]: Start difference. First operand 41481 states and 59963 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-22 01:46:00,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:46:02,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:02,895 INFO L93 Difference]: Finished difference Result 41788 states and 60240 transitions. [2022-11-22 01:46:02,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:46:02,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 399 [2022-11-22 01:46:02,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:03,083 INFO L225 Difference]: With dead ends: 41788 [2022-11-22 01:46:03,083 INFO L226 Difference]: Without dead ends: 41786 [2022-11-22 01:46:03,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:46:03,104 INFO L413 NwaCegarLoop]: 4411 mSDtfsCounter, 4867 mSDsluCounter, 8843 mSDsCounter, 0 mSdLazyCounter, 1814 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4881 SdHoareTripleChecker+Valid, 13254 SdHoareTripleChecker+Invalid, 1816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:03,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4881 Valid, 13254 Invalid, 1816 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1814 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-22 01:46:03,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41786 states. [2022-11-22 01:46:05,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41786 to 41784. [2022-11-22 01:46:05,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41784 states, 23750 states have (on average 1.2805473684210527) internal successors, (30413), 24799 states have internal predecessors, (30413), 14904 states have call successors, (14904), 3142 states have call predecessors, (14904), 3127 states have return successors, (14920), 14504 states have call predecessors, (14920), 14900 states have call successors, (14920) [2022-11-22 01:46:05,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41784 states to 41784 states and 60237 transitions. [2022-11-22 01:46:05,682 INFO L78 Accepts]: Start accepts. Automaton has 41784 states and 60237 transitions. Word has length 399 [2022-11-22 01:46:05,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:05,683 INFO L495 AbstractCegarLoop]: Abstraction has 41784 states and 60237 transitions. [2022-11-22 01:46:05,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-11-22 01:46:05,683 INFO L276 IsEmpty]: Start isEmpty. Operand 41784 states and 60237 transitions. [2022-11-22 01:46:05,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2022-11-22 01:46:05,693 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:05,694 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:46:05,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:46:05,694 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 01:46:05,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:05,695 INFO L85 PathProgramCache]: Analyzing trace with hash 2042159822, now seen corresponding path program 1 times [2022-11-22 01:46:05,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:05,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587061770] [2022-11-22 01:46:05,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:05,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:06,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:07,834 INFO L134 CoverageAnalysis]: Checked inductivity of 4537 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4535 trivial. 0 not checked. [2022-11-22 01:46:07,834 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:07,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587061770] [2022-11-22 01:46:07,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587061770] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:07,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:07,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:46:07,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835237249] [2022-11-22 01:46:07,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:07,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:46:07,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:07,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:46:07,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:46:07,837 INFO L87 Difference]: Start difference. First operand 41784 states and 60237 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-22 01:46:13,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:13,226 INFO L93 Difference]: Finished difference Result 41790 states and 60242 transitions. [2022-11-22 01:46:13,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:46:13,226 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 408 [2022-11-22 01:46:13,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:13,417 INFO L225 Difference]: With dead ends: 41790 [2022-11-22 01:46:13,417 INFO L226 Difference]: Without dead ends: 41788 [2022-11-22 01:46:13,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:46:13,438 INFO L413 NwaCegarLoop]: 4393 mSDtfsCounter, 4879 mSDsluCounter, 8764 mSDsCounter, 0 mSdLazyCounter, 1804 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4892 SdHoareTripleChecker+Valid, 13157 SdHoareTripleChecker+Invalid, 1805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:13,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4892 Valid, 13157 Invalid, 1805 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1804 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-22 01:46:13,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41788 states. [2022-11-22 01:46:16,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41788 to 41788. [2022-11-22 01:46:16,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41788 states, 23753 states have (on average 1.280511935334484) internal successors, (30416), 24802 states have internal predecessors, (30416), 14904 states have call successors, (14904), 3143 states have call predecessors, (14904), 3128 states have return successors, (14920), 14504 states have call predecessors, (14920), 14900 states have call successors, (14920) [2022-11-22 01:46:16,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41788 states to 41788 states and 60240 transitions. [2022-11-22 01:46:16,386 INFO L78 Accepts]: Start accepts. Automaton has 41788 states and 60240 transitions. Word has length 408 [2022-11-22 01:46:16,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:16,387 INFO L495 AbstractCegarLoop]: Abstraction has 41788 states and 60240 transitions. [2022-11-22 01:46:16,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-22 01:46:16,387 INFO L276 IsEmpty]: Start isEmpty. Operand 41788 states and 60240 transitions. [2022-11-22 01:46:16,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2022-11-22 01:46:16,394 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:16,394 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:46:16,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:46:16,395 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 01:46:16,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:16,395 INFO L85 PathProgramCache]: Analyzing trace with hash -452242713, now seen corresponding path program 1 times [2022-11-22 01:46:16,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:16,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167719131] [2022-11-22 01:46:16,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:16,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:17,805 INFO L134 CoverageAnalysis]: Checked inductivity of 4537 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4533 trivial. 0 not checked. [2022-11-22 01:46:17,805 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:17,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167719131] [2022-11-22 01:46:17,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167719131] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:17,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:17,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:46:17,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380702607] [2022-11-22 01:46:17,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:17,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:46:17,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:17,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:46:17,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:46:17,808 INFO L87 Difference]: Start difference. First operand 41788 states and 60240 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-11-22 01:46:23,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:46:23,848 INFO L93 Difference]: Finished difference Result 41794 states and 60245 transitions. [2022-11-22 01:46:23,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:46:23,849 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 409 [2022-11-22 01:46:23,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:46:24,012 INFO L225 Difference]: With dead ends: 41794 [2022-11-22 01:46:24,013 INFO L226 Difference]: Without dead ends: 41792 [2022-11-22 01:46:24,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:46:24,036 INFO L413 NwaCegarLoop]: 4393 mSDtfsCounter, 4880 mSDsluCounter, 8764 mSDsCounter, 0 mSdLazyCounter, 1804 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4892 SdHoareTripleChecker+Valid, 13157 SdHoareTripleChecker+Invalid, 1805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:46:24,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4892 Valid, 13157 Invalid, 1805 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1804 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-22 01:46:24,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41792 states. [2022-11-22 01:46:26,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41792 to 41792. [2022-11-22 01:46:26,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41792 states, 23756 states have (on average 1.2804765111971712) internal successors, (30419), 24805 states have internal predecessors, (30419), 14904 states have call successors, (14904), 3144 states have call predecessors, (14904), 3129 states have return successors, (14920), 14504 states have call predecessors, (14920), 14900 states have call successors, (14920) [2022-11-22 01:46:26,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41792 states to 41792 states and 60243 transitions. [2022-11-22 01:46:26,529 INFO L78 Accepts]: Start accepts. Automaton has 41792 states and 60243 transitions. Word has length 409 [2022-11-22 01:46:26,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:46:26,530 INFO L495 AbstractCegarLoop]: Abstraction has 41792 states and 60243 transitions. [2022-11-22 01:46:26,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-11-22 01:46:26,531 INFO L276 IsEmpty]: Start isEmpty. Operand 41792 states and 60243 transitions. [2022-11-22 01:46:26,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2022-11-22 01:46:26,539 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:46:26,539 INFO L195 NwaCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:46:26,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:46:26,540 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 01:46:26,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:46:26,540 INFO L85 PathProgramCache]: Analyzing trace with hash 357831820, now seen corresponding path program 1 times [2022-11-22 01:46:26,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:46:26,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634549976] [2022-11-22 01:46:26,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:46:26,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:46:26,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:46:28,037 INFO L134 CoverageAnalysis]: Checked inductivity of 4547 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4541 trivial. 0 not checked. [2022-11-22 01:46:28,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:46:28,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634549976] [2022-11-22 01:46:28,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634549976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:46:28,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:46:28,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:46:28,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108111560] [2022-11-22 01:46:28,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:46:28,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:46:28,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:46:28,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:46:28,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:46:28,040 INFO L87 Difference]: Start difference. First operand 41792 states and 60243 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45)