./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0870d77a-3be3-41cd-9c26-c89a25be69ef/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0870d77a-3be3-41cd-9c26-c89a25be69ef/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0870d77a-3be3-41cd-9c26-c89a25be69ef/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0870d77a-3be3-41cd-9c26-c89a25be69ef/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0870d77a-3be3-41cd-9c26-c89a25be69ef/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0870d77a-3be3-41cd-9c26-c89a25be69ef/bin/utaipan-EQgc7hIp5V --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 817bea8ab76945a5848f42772e9b8e947c5db1a5578e423e156f0a053a32f550 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:41:03,413 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:41:03,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:41:03,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:41:03,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:41:03,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:41:03,462 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:41:03,466 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:41:03,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:41:03,470 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:41:03,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:41:03,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:41:03,474 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:41:03,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:41:03,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:41:03,480 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:41:03,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:41:03,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:41:03,487 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:41:03,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:41:03,494 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:41:03,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:41:03,502 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:41:03,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:41:03,517 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:41:03,517 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:41:03,518 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:41:03,519 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:41:03,520 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:41:03,522 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:41:03,522 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:41:03,523 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:41:03,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:41:03,526 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:41:03,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:41:03,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:41:03,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:41:03,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:41:03,538 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:41:03,539 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:41:03,540 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:41:03,542 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0870d77a-3be3-41cd-9c26-c89a25be69ef/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 02:41:03,586 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:41:03,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:41:03,587 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:41:03,587 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:41:03,588 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:41:03,588 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:41:03,588 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:41:03,589 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:41:03,589 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:41:03,589 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:41:03,589 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:41:03,590 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:41:03,590 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:41:03,590 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:41:03,591 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:41:03,591 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:41:03,591 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:41:03,591 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:41:03,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:41:03,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:41:03,593 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:41:03,593 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:41:03,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:41:03,594 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:41:03,594 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:41:03,594 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:41:03,595 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:41:03,595 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:41:03,595 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:41:03,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:41:03,596 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:41:03,596 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:41:03,596 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:41:03,597 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:41:03,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:41:03,597 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:41:03,598 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:41:03,598 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:41:03,598 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_0870d77a-3be3-41cd-9c26-c89a25be69ef/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0870d77a-3be3-41cd-9c26-c89a25be69ef/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 817bea8ab76945a5848f42772e9b8e947c5db1a5578e423e156f0a053a32f550 [2021-11-23 02:41:03,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:41:03,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:41:03,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:41:03,992 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:41:03,994 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:41:03,996 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0870d77a-3be3-41cd-9c26-c89a25be69ef/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i [2021-11-23 02:41:04,095 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0870d77a-3be3-41cd-9c26-c89a25be69ef/bin/utaipan-EQgc7hIp5V/data/721f811da/455d8238b0c142e490b15e3447e678bb/FLAG0448cbc37 [2021-11-23 02:41:05,722 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:41:05,723 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0870d77a-3be3-41cd-9c26-c89a25be69ef/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i [2021-11-23 02:41:05,797 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0870d77a-3be3-41cd-9c26-c89a25be69ef/bin/utaipan-EQgc7hIp5V/data/721f811da/455d8238b0c142e490b15e3447e678bb/FLAG0448cbc37 [2021-11-23 02:41:06,155 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0870d77a-3be3-41cd-9c26-c89a25be69ef/bin/utaipan-EQgc7hIp5V/data/721f811da/455d8238b0c142e490b15e3447e678bb [2021-11-23 02:41:06,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:41:06,159 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:41:06,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:41:06,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:41:06,177 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:41:06,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:41:06" (1/1) ... [2021-11-23 02:41:06,180 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b80af54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:06, skipping insertion in model container [2021-11-23 02:41:06,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:41:06" (1/1) ... [2021-11-23 02:41:06,189 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:41:06,485 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:41:15,990 WARN L230 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_0870d77a-3be3-41cd-9c26-c89a25be69ef/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[649077,649090] [2021-11-23 02:41:15,994 WARN L230 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_0870d77a-3be3-41cd-9c26-c89a25be69ef/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[649246,649259] [2021-11-23 02:41:15,995 WARN L230 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_0870d77a-3be3-41cd-9c26-c89a25be69ef/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[649413,649426] [2021-11-23 02:41:15,996 WARN L230 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_0870d77a-3be3-41cd-9c26-c89a25be69ef/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[649581,649594] [2021-11-23 02:41:16,060 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:41:16,155 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:41:17,063 WARN L230 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_0870d77a-3be3-41cd-9c26-c89a25be69ef/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[649077,649090] [2021-11-23 02:41:17,064 WARN L230 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_0870d77a-3be3-41cd-9c26-c89a25be69ef/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[649246,649259] [2021-11-23 02:41:17,064 WARN L230 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_0870d77a-3be3-41cd-9c26-c89a25be69ef/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[649413,649426] [2021-11-23 02:41:17,065 WARN L230 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_0870d77a-3be3-41cd-9c26-c89a25be69ef/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[649581,649594] [2021-11-23 02:41:17,079 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:41:17,618 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:41:17,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:17 WrapperNode [2021-11-23 02:41:17,619 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:41:17,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:41:17,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:41:17,621 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:41:17,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:17" (1/1) ... [2021-11-23 02:41:17,976 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:17" (1/1) ... [2021-11-23 02:41:18,609 INFO L137 Inliner]: procedures = 732, calls = 6977, calls flagged for inlining = 351, calls inlined = 332, statements flattened = 14608 [2021-11-23 02:41:18,610 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:41:18,620 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:41:18,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:41:18,629 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:41:18,654 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:17" (1/1) ... [2021-11-23 02:41:18,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:17" (1/1) ... [2021-11-23 02:41:18,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:17" (1/1) ... [2021-11-23 02:41:18,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:17" (1/1) ... [2021-11-23 02:41:19,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:17" (1/1) ... [2021-11-23 02:41:19,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:17" (1/1) ... [2021-11-23 02:41:19,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:17" (1/1) ... [2021-11-23 02:41:19,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:41:19,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:41:19,549 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:41:19,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:41:19,551 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:17" (1/1) ... [2021-11-23 02:41:19,561 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:41:19,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0870d77a-3be3-41cd-9c26-c89a25be69ef/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:41:19,593 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0870d77a-3be3-41cd-9c26-c89a25be69ef/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:41:19,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0870d77a-3be3-41cd-9c26-c89a25be69ef/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:41:19,657 INFO L130 BoogieDeclarations]: Found specification of procedure PC4500_writerid [2021-11-23 02:41:19,658 INFO L138 BoogieDeclarations]: Found implementation of procedure PC4500_writerid [2021-11-23 02:41:19,658 INFO L130 BoogieDeclarations]: Found specification of procedure reset_card [2021-11-23 02:41:19,658 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_card [2021-11-23 02:41:19,659 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-23 02:41:19,660 INFO L130 BoogieDeclarations]: Found specification of procedure readStatusRid [2021-11-23 02:41:19,660 INFO L138 BoogieDeclarations]: Found implementation of procedure readStatusRid [2021-11-23 02:41:19,660 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-23 02:41:19,660 INFO L130 BoogieDeclarations]: Found specification of procedure reset_airo_card [2021-11-23 02:41:19,661 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_airo_card [2021-11-23 02:41:19,661 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2021-11-23 02:41:19,661 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2021-11-23 02:41:19,661 INFO L130 BoogieDeclarations]: Found specification of procedure crypto_cipher_crt [2021-11-23 02:41:19,662 INFO L138 BoogieDeclarations]: Found implementation of procedure crypto_cipher_crt [2021-11-23 02:41:19,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 02:41:19,662 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 02:41:19,662 INFO L130 BoogieDeclarations]: Found specification of procedure wifi_setup [2021-11-23 02:41:19,662 INFO L138 BoogieDeclarations]: Found implementation of procedure wifi_setup [2021-11-23 02:41:19,663 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-23 02:41:19,663 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-23 02:41:19,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 02:41:19,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 02:41:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_spy_update [2021-11-23 02:41:19,664 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_spy_update [2021-11-23 02:41:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure age_mic_context [2021-11-23 02:41:19,664 INFO L138 BoogieDeclarations]: Found implementation of procedure age_mic_context [2021-11-23 02:41:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-23 02:41:19,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-23 02:41:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure setup_card [2021-11-23 02:41:19,666 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_card [2021-11-23 02:41:19,666 INFO L130 BoogieDeclarations]: Found specification of procedure airo_networks_free [2021-11-23 02:41:19,667 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_networks_free [2021-11-23 02:41:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_should_stop [2021-11-23 02:41:19,667 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_should_stop [2021-11-23 02:41:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2021-11-23 02:41:19,668 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2021-11-23 02:41:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-23 02:41:19,669 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-23 02:41:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure airo_close [2021-11-23 02:41:19,669 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_close [2021-11-23 02:41:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_62 [2021-11-23 02:41:19,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_62 [2021-11-23 02:41:19,670 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_error [2021-11-23 02:41:19,671 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_error [2021-11-23 02:41:19,672 INFO L130 BoogieDeclarations]: Found specification of procedure sniffing_mode [2021-11-23 02:41:19,672 INFO L138 BoogieDeclarations]: Found implementation of procedure sniffing_mode [2021-11-23 02:41:19,673 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-23 02:41:19,673 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-23 02:41:19,673 INFO L130 BoogieDeclarations]: Found specification of procedure header_len [2021-11-23 02:41:19,673 INFO L138 BoogieDeclarations]: Found implementation of procedure header_len [2021-11-23 02:41:19,673 INFO L130 BoogieDeclarations]: Found specification of procedure ssleep [2021-11-23 02:41:19,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ssleep [2021-11-23 02:41:19,674 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2021-11-23 02:41:19,674 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2021-11-23 02:41:19,675 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2021-11-23 02:41:19,675 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2021-11-23 02:41:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure readSsidRid [2021-11-23 02:41:19,676 INFO L138 BoogieDeclarations]: Found implementation of procedure readSsidRid [2021-11-23 02:41:19,676 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 02:41:19,677 INFO L130 BoogieDeclarations]: Found specification of procedure emmh32_final [2021-11-23 02:41:19,677 INFO L138 BoogieDeclarations]: Found implementation of procedure emmh32_final [2021-11-23 02:41:19,677 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-23 02:41:19,677 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-23 02:41:19,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-23 02:41:19,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-23 02:41:19,678 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2021-11-23 02:41:19,679 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2021-11-23 02:41:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure down_trylock [2021-11-23 02:41:19,679 INFO L138 BoogieDeclarations]: Found implementation of procedure down_trylock [2021-11-23 02:41:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-11-23 02:41:19,680 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-11-23 02:41:19,680 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-23 02:41:19,680 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-23 02:41:19,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 02:41:19,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 02:41:19,681 INFO L130 BoogieDeclarations]: Found specification of procedure enable_MAC [2021-11-23 02:41:19,682 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_MAC [2021-11-23 02:41:19,682 INFO L130 BoogieDeclarations]: Found specification of procedure OUT4500 [2021-11-23 02:41:19,682 INFO L138 BoogieDeclarations]: Found implementation of procedure OUT4500 [2021-11-23 02:41:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:41:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-23 02:41:19,683 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-23 02:41:19,684 INFO L130 BoogieDeclarations]: Found specification of procedure mpi_send_packet [2021-11-23 02:41:19,685 INFO L138 BoogieDeclarations]: Found implementation of procedure mpi_send_packet [2021-11-23 02:41:19,685 INFO L130 BoogieDeclarations]: Found specification of procedure PDE_DATA [2021-11-23 02:41:19,685 INFO L138 BoogieDeclarations]: Found implementation of procedure PDE_DATA [2021-11-23 02:41:19,686 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-23 02:41:19,687 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-23 02:41:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure airo_ioctl [2021-11-23 02:41:19,687 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_ioctl [2021-11-23 02:41:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-23 02:41:19,688 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-23 02:41:19,688 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-23 02:41:19,688 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-23 02:41:19,688 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-23 02:41:19,689 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-23 02:41:19,689 INFO L130 BoogieDeclarations]: Found specification of procedure airo_end_xmit11 [2021-11-23 02:41:19,689 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_end_xmit11 [2021-11-23 02:41:19,689 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-23 02:41:19,690 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-23 02:41:19,690 INFO L130 BoogieDeclarations]: Found specification of procedure airo_change_mtu [2021-11-23 02:41:19,690 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_change_mtu [2021-11-23 02:41:19,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:41:19,691 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-23 02:41:19,692 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-23 02:41:19,693 INFO L130 BoogieDeclarations]: Found specification of procedure disable_interrupts [2021-11-23 02:41:19,696 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_interrupts [2021-11-23 02:41:19,696 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-23 02:41:19,696 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-23 02:41:19,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-23 02:41:19,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-23 02:41:19,698 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-23 02:41:19,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-23 02:41:19,698 INFO L130 BoogieDeclarations]: Found specification of procedure down_interruptible [2021-11-23 02:41:19,699 INFO L138 BoogieDeclarations]: Found implementation of procedure down_interruptible [2021-11-23 02:41:19,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:41:19,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-23 02:41:19,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-23 02:41:19,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:41:19,706 INFO L130 BoogieDeclarations]: Found specification of procedure airo_pci_remove [2021-11-23 02:41:19,707 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_pci_remove [2021-11-23 02:41:19,707 INFO L130 BoogieDeclarations]: Found specification of procedure aux_setup [2021-11-23 02:41:19,707 INFO L138 BoogieDeclarations]: Found implementation of procedure aux_setup [2021-11-23 02:41:19,707 INFO L130 BoogieDeclarations]: Found specification of procedure writeConfigRid [2021-11-23 02:41:19,707 INFO L138 BoogieDeclarations]: Found implementation of procedure writeConfigRid [2021-11-23 02:41:19,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 02:41:19,708 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 02:41:19,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-23 02:41:19,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-23 02:41:19,709 INFO L130 BoogieDeclarations]: Found specification of procedure readCapabilityRid [2021-11-23 02:41:19,709 INFO L138 BoogieDeclarations]: Found implementation of procedure readCapabilityRid [2021-11-23 02:41:19,709 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2021-11-23 02:41:19,709 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2021-11-23 02:41:19,709 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2021-11-23 02:41:19,710 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2021-11-23 02:41:19,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-23 02:41:19,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-23 02:41:19,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_netdev_mqs [2021-11-23 02:41:19,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_netdev_mqs [2021-11-23 02:41:19,711 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-23 02:41:19,711 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-23 02:41:19,711 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-23 02:41:19,711 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-23 02:41:19,711 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-23 02:41:19,712 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-23 02:41:19,712 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-23 02:41:19,712 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-23 02:41:19,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-23 02:41:19,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-23 02:41:19,713 INFO L130 BoogieDeclarations]: Found specification of procedure writeWepKeyRid [2021-11-23 02:41:19,713 INFO L138 BoogieDeclarations]: Found implementation of procedure writeWepKeyRid [2021-11-23 02:41:19,713 INFO L130 BoogieDeclarations]: Found specification of procedure proc_create_data [2021-11-23 02:41:19,713 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_create_data [2021-11-23 02:41:19,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:41:19,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-23 02:41:19,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-23 02:41:19,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-23 02:41:19,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-23 02:41:19,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-23 02:41:19,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-23 02:41:19,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2021-11-23 02:41:19,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2021-11-23 02:41:19,717 INFO L130 BoogieDeclarations]: Found specification of procedure del_airo_dev [2021-11-23 02:41:19,717 INFO L138 BoogieDeclarations]: Found implementation of procedure del_airo_dev [2021-11-23 02:41:19,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:41:19,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-23 02:41:19,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-23 02:41:19,718 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-23 02:41:19,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-23 02:41:19,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:41:19,718 INFO L130 BoogieDeclarations]: Found specification of procedure writeSsidRid [2021-11-23 02:41:19,719 INFO L138 BoogieDeclarations]: Found implementation of procedure writeSsidRid [2021-11-23 02:41:19,719 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 02:41:19,719 INFO L130 BoogieDeclarations]: Found specification of procedure MoveWindow [2021-11-23 02:41:19,719 INFO L138 BoogieDeclarations]: Found implementation of procedure MoveWindow [2021-11-23 02:41:19,719 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2021-11-23 02:41:19,720 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2021-11-23 02:41:19,720 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:41:19,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:41:19,720 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-23 02:41:19,720 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-23 02:41:19,721 INFO L130 BoogieDeclarations]: Found specification of procedure crypto_cipher_tfm [2021-11-23 02:41:19,721 INFO L138 BoogieDeclarations]: Found implementation of procedure crypto_cipher_tfm [2021-11-23 02:41:19,721 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-11-23 02:41:19,721 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-11-23 02:41:19,721 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-23 02:41:19,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-23 02:41:19,722 INFO L130 BoogieDeclarations]: Found specification of procedure proc_close [2021-11-23 02:41:19,722 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_close [2021-11-23 02:41:19,722 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-23 02:41:19,722 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-23 02:41:19,723 INFO L130 BoogieDeclarations]: Found specification of procedure airo_set_multicast_list [2021-11-23 02:41:19,723 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_set_multicast_list [2021-11-23 02:41:19,723 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-23 02:41:19,723 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-23 02:41:19,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-23 02:41:19,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-23 02:41:19,724 INFO L130 BoogieDeclarations]: Found specification of procedure set_wep_key [2021-11-23 02:41:19,724 INFO L138 BoogieDeclarations]: Found implementation of procedure set_wep_key [2021-11-23 02:41:19,724 INFO L130 BoogieDeclarations]: Found specification of procedure writeAPListRid [2021-11-23 02:41:19,725 INFO L138 BoogieDeclarations]: Found implementation of procedure writeAPListRid [2021-11-23 02:41:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-23 02:41:19,725 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-23 02:41:19,725 INFO L130 BoogieDeclarations]: Found specification of procedure freezing [2021-11-23 02:41:19,725 INFO L138 BoogieDeclarations]: Found implementation of procedure freezing [2021-11-23 02:41:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:41:19,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:41:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure proc_stats_rid_open [2021-11-23 02:41:19,726 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_stats_rid_open [2021-11-23 02:41:19,726 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-23 02:41:19,727 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-23 02:41:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_send_event [2021-11-23 02:41:19,727 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_send_event [2021-11-23 02:41:19,727 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-23 02:41:19,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-23 02:41:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure insb [2021-11-23 02:41:19,728 INFO L138 BoogieDeclarations]: Found implementation of procedure insb [2021-11-23 02:41:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-23 02:41:19,728 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-23 02:41:19,728 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-23 02:41:19,729 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-23 02:41:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2021-11-23 02:41:19,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2021-11-23 02:41:19,729 INFO L130 BoogieDeclarations]: Found specification of procedure IN4500 [2021-11-23 02:41:19,729 INFO L138 BoogieDeclarations]: Found implementation of procedure IN4500 [2021-11-23 02:41:19,730 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2021-11-23 02:41:19,730 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2021-11-23 02:41:19,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:41:19,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:41:19,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 02:41:19,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 02:41:19,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_aux_lock_of_airo_info [2021-11-23 02:41:19,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_aux_lock_of_airo_info [2021-11-23 02:41:19,737 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2021-11-23 02:41:19,737 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2021-11-23 02:41:19,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-23 02:41:19,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-23 02:41:19,738 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-23 02:41:19,738 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-23 02:41:19,738 INFO L130 BoogieDeclarations]: Found specification of procedure bap_write [2021-11-23 02:41:19,738 INFO L138 BoogieDeclarations]: Found implementation of procedure bap_write [2021-11-23 02:41:19,738 INFO L130 BoogieDeclarations]: Found specification of procedure _init_airo_card [2021-11-23 02:41:19,739 INFO L138 BoogieDeclarations]: Found implementation of procedure _init_airo_card [2021-11-23 02:41:19,742 INFO L130 BoogieDeclarations]: Found specification of procedure waitbusy [2021-11-23 02:41:19,742 INFO L138 BoogieDeclarations]: Found implementation of procedure waitbusy [2021-11-23 02:41:19,742 INFO L130 BoogieDeclarations]: Found specification of procedure decapsulate [2021-11-23 02:41:19,742 INFO L138 BoogieDeclarations]: Found implementation of procedure decapsulate [2021-11-23 02:41:19,743 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2021-11-23 02:41:19,743 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2021-11-23 02:41:19,743 INFO L130 BoogieDeclarations]: Found specification of procedure proc_mkdir_mode [2021-11-23 02:41:19,743 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_mkdir_mode [2021-11-23 02:41:19,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 02:41:19,744 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 02:41:19,744 INFO L130 BoogieDeclarations]: Found specification of procedure readBSSListRid [2021-11-23 02:41:19,744 INFO L138 BoogieDeclarations]: Found implementation of procedure readBSSListRid [2021-11-23 02:41:19,744 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-23 02:41:19,744 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-23 02:41:19,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_airo_cleanup_module_23_2 [2021-11-23 02:41:19,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_airo_cleanup_module_23_2 [2021-11-23 02:41:19,745 INFO L130 BoogieDeclarations]: Found specification of procedure insw [2021-11-23 02:41:19,745 INFO L138 BoogieDeclarations]: Found implementation of procedure insw [2021-11-23 02:41:19,745 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-11-23 02:41:19,746 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-11-23 02:41:19,746 INFO L130 BoogieDeclarations]: Found specification of procedure set_wep_tx_idx [2021-11-23 02:41:19,746 INFO L138 BoogieDeclarations]: Found implementation of procedure set_wep_tx_idx [2021-11-23 02:41:19,746 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-23 02:41:19,746 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-23 02:41:19,746 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-23 02:41:19,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-23 02:41:19,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:41:19,747 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-23 02:41:19,747 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-23 02:41:19,747 INFO L130 BoogieDeclarations]: Found specification of procedure proc_write [2021-11-23 02:41:19,748 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_write [2021-11-23 02:41:19,748 INFO L130 BoogieDeclarations]: Found specification of procedure up [2021-11-23 02:41:19,748 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2021-11-23 02:41:19,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:41:19,748 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2021-11-23 02:41:19,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2021-11-23 02:41:19,749 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_subtree [2021-11-23 02:41:19,749 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_subtree [2021-11-23 02:41:19,749 INFO L130 BoogieDeclarations]: Found specification of procedure transmit_allocate [2021-11-23 02:41:19,749 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit_allocate [2021-11-23 02:41:19,750 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-23 02:41:19,750 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-23 02:41:19,750 INFO L130 BoogieDeclarations]: Found specification of procedure proc_read [2021-11-23 02:41:19,750 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_read [2021-11-23 02:41:19,750 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-23 02:41:19,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-23 02:41:19,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:41:19,751 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-23 02:41:19,751 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-23 02:41:19,751 INFO L130 BoogieDeclarations]: Found specification of procedure PC4500_accessrid [2021-11-23 02:41:19,751 INFO L138 BoogieDeclarations]: Found implementation of procedure PC4500_accessrid [2021-11-23 02:41:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure airo_send_event [2021-11-23 02:41:19,752 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_send_event [2021-11-23 02:41:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-23 02:41:19,752 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-23 02:41:19,752 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-23 02:41:19,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-23 02:41:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure airo_pci_resume [2021-11-23 02:41:19,753 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_pci_resume [2021-11-23 02:41:19,753 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-23 02:41:19,753 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-23 02:41:19,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-23 02:41:19,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-23 02:41:19,754 INFO L130 BoogieDeclarations]: Found specification of procedure hex_to_bin [2021-11-23 02:41:19,754 INFO L138 BoogieDeclarations]: Found implementation of procedure hex_to_bin [2021-11-23 02:41:19,754 INFO L130 BoogieDeclarations]: Found specification of procedure try_auto_wep [2021-11-23 02:41:19,755 INFO L138 BoogieDeclarations]: Found implementation of procedure try_auto_wep [2021-11-23 02:41:19,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-23 02:41:19,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-23 02:41:19,755 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-23 02:41:19,755 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-23 02:41:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure bap_read [2021-11-23 02:41:19,756 INFO L138 BoogieDeclarations]: Found implementation of procedure bap_read [2021-11-23 02:41:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure issuecommand [2021-11-23 02:41:19,756 INFO L138 BoogieDeclarations]: Found implementation of procedure issuecommand [2021-11-23 02:41:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-23 02:41:19,756 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-23 02:41:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure bap_setup [2021-11-23 02:41:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure bap_setup [2021-11-23 02:41:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure readAPListRid [2021-11-23 02:41:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure readAPListRid [2021-11-23 02:41:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-23 02:41:19,758 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-23 02:41:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-23 02:41:19,758 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-23 02:41:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure airo_read_stats [2021-11-23 02:41:19,758 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_read_stats [2021-11-23 02:41:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure airo_end_xmit [2021-11-23 02:41:19,759 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_end_xmit [2021-11-23 02:41:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure readConfigRid [2021-11-23 02:41:19,759 INFO L138 BoogieDeclarations]: Found implementation of procedure readConfigRid [2021-11-23 02:41:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-23 02:41:19,760 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-23 02:41:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-23 02:41:19,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-23 02:41:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 02:41:19,760 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 02:41:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2021-11-23 02:41:19,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_setup [2021-11-23 02:41:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure airo_open [2021-11-23 02:41:19,761 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_open [2021-11-23 02:41:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:41:19,762 INFO L130 BoogieDeclarations]: Found specification of procedure stop_airo_card [2021-11-23 02:41:19,762 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_airo_card [2021-11-23 02:41:19,762 INFO L130 BoogieDeclarations]: Found specification of procedure emmh32_update [2021-11-23 02:41:19,762 INFO L138 BoogieDeclarations]: Found implementation of procedure emmh32_update [2021-11-23 02:41:19,762 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-11-23 02:41:19,763 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-11-23 02:41:19,763 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-11-23 02:41:19,763 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-11-23 02:41:19,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 02:41:19,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 02:41:19,763 INFO L130 BoogieDeclarations]: Found specification of procedure readWepKeyRid [2021-11-23 02:41:19,764 INFO L138 BoogieDeclarations]: Found implementation of procedure readWepKeyRid [2021-11-23 02:41:19,764 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2021-11-23 02:41:19,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2021-11-23 02:41:19,764 INFO L130 BoogieDeclarations]: Found specification of procedure mpi_unmap_card [2021-11-23 02:41:19,764 INFO L138 BoogieDeclarations]: Found implementation of procedure mpi_unmap_card [2021-11-23 02:41:19,765 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-23 02:41:19,765 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-23 02:41:19,765 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-23 02:41:19,765 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-23 02:41:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure proc_set_user [2021-11-23 02:41:19,766 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_set_user [2021-11-23 02:41:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-23 02:41:19,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-23 02:41:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2021-11-23 02:41:19,768 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2021-11-23 02:41:19,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-23 02:41:19,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-23 02:41:19,768 INFO L130 BoogieDeclarations]: Found specification of procedure airo_get_stats [2021-11-23 02:41:19,768 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_get_stats [2021-11-23 02:41:19,769 INFO L130 BoogieDeclarations]: Found specification of procedure PC4500_readrid [2021-11-23 02:41:19,769 INFO L138 BoogieDeclarations]: Found implementation of procedure PC4500_readrid [2021-11-23 02:41:19,769 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-23 02:41:19,769 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-23 02:41:19,769 INFO L130 BoogieDeclarations]: Found specification of procedure mpi_init_descriptors [2021-11-23 02:41:19,770 INFO L138 BoogieDeclarations]: Found implementation of procedure mpi_init_descriptors [2021-11-23 02:41:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure get_dec_u16 [2021-11-23 02:41:19,770 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dec_u16 [2021-11-23 02:41:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure enable_interrupts [2021-11-23 02:41:19,770 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_interrupts [2021-11-23 02:41:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-23 02:41:19,771 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-23 02:41:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure airo_read_wireless_stats [2021-11-23 02:41:19,771 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_read_wireless_stats [2021-11-23 02:41:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:41:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2021-11-23 02:41:19,772 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2021-11-23 02:41:19,875 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-11-23 02:41:19,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-11-23 02:41:19,875 INFO L130 BoogieDeclarations]: Found specification of procedure airo_set_mac_address [2021-11-23 02:41:19,875 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_set_mac_address [2021-11-23 02:41:19,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-23 02:41:19,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-23 02:41:19,875 INFO L130 BoogieDeclarations]: Found specification of procedure emmh32_init [2021-11-23 02:41:19,875 INFO L138 BoogieDeclarations]: Found implementation of procedure emmh32_init [2021-11-23 02:41:19,876 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-23 02:41:19,876 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-23 02:41:19,876 INFO L130 BoogieDeclarations]: Found specification of procedure disable_MAC [2021-11-23 02:41:19,876 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_MAC [2021-11-23 02:41:19,876 INFO L130 BoogieDeclarations]: Found specification of procedure readStatsRid [2021-11-23 02:41:19,876 INFO L138 BoogieDeclarations]: Found implementation of procedure readStatsRid [2021-11-23 02:41:19,876 INFO L130 BoogieDeclarations]: Found specification of procedure encapsulate [2021-11-23 02:41:19,876 INFO L138 BoogieDeclarations]: Found implementation of procedure encapsulate [2021-11-23 02:41:19,876 INFO L130 BoogieDeclarations]: Found specification of procedure airo_set_promisc [2021-11-23 02:41:19,877 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_set_promisc [2021-11-23 02:41:21,808 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:41:21,817 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:41:22,285 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 02:42:23,231 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 02:42:23,709 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:42:28,061 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:42:28,062 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-23 02:42:28,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:42:28 BoogieIcfgContainer [2021-11-23 02:42:28,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:42:28,077 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:42:28,077 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:42:28,084 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:42:28,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:41:06" (1/3) ... [2021-11-23 02:42:28,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d6b3a30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:42:28, skipping insertion in model container [2021-11-23 02:42:28,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:41:17" (2/3) ... [2021-11-23 02:42:28,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d6b3a30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:42:28, skipping insertion in model container [2021-11-23 02:42:28,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:42:28" (3/3) ... [2021-11-23 02:42:28,091 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i [2021-11-23 02:42:28,104 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:42:28,104 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-23 02:42:28,214 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:42:28,232 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:42:28,235 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-23 02:42:28,377 INFO L276 IsEmpty]: Start isEmpty. Operand has 3946 states, 2337 states have (on average 1.335900727428327) internal successors, (3122), 2453 states have internal predecessors, (3122), 1413 states have call successors, (1413), 195 states have call predecessors, (1413), 194 states have return successors, (1406), 1359 states have call predecessors, (1406), 1406 states have call successors, (1406) [2021-11-23 02:42:28,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 616 [2021-11-23 02:42:28,445 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:42:28,446 INFO L514 BasicCegarLoop]: trace histogram [60, 59, 59, 59, 59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:42:28,453 INFO L402 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)] === [2021-11-23 02:42:28,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:42:28,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1368345799, now seen corresponding path program 1 times [2021-11-23 02:42:28,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:42:28,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714436155] [2021-11-23 02:42:28,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:42:28,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:42:29,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:42:30,295 INFO L134 CoverageAnalysis]: Checked inductivity of 13806 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13806 trivial. 0 not checked. [2021-11-23 02:42:30,296 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:42:30,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714436155] [2021-11-23 02:42:30,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714436155] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:42:30,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:42:30,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:42:30,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944988658] [2021-11-23 02:42:30,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:42:30,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:42:30,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:42:30,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:42:30,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:42:30,370 INFO L87 Difference]: Start difference. First operand has 3946 states, 2337 states have (on average 1.335900727428327) internal successors, (3122), 2453 states have internal predecessors, (3122), 1413 states have call successors, (1413), 195 states have call predecessors, (1413), 194 states have return successors, (1406), 1359 states have call predecessors, (1406), 1406 states have call successors, (1406) Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2021-11-23 02:42:33,765 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:42:36,593 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:42:40,476 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:42:45,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:42:45,829 INFO L93 Difference]: Finished difference Result 11232 states and 17156 transitions. [2021-11-23 02:42:45,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:42:45,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) Word has length 615 [2021-11-23 02:42:45,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:42:45,969 INFO L225 Difference]: With dead ends: 11232 [2021-11-23 02:42:45,969 INFO L226 Difference]: Without dead ends: 7394 [2021-11-23 02:42:46,029 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:42:46,033 INFO L933 BasicCegarLoop]: 6526 mSDtfsCounter, 5265 mSDsluCounter, 5814 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5275 SdHoareTripleChecker+Valid, 11744 SdHoareTripleChecker+Invalid, 1287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:42:46,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5275 Valid, 11744 Invalid, 1287 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 1271 Invalid, 3 Unknown, 0 Unchecked, 14.6s Time] [2021-11-23 02:42:46,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7394 states. [2021-11-23 02:42:46,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7394 to 7387. [2021-11-23 02:42:46,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7387 states, 4400 states have (on average 1.336818181818182) internal successors, (5882), 4629 states have internal predecessors, (5882), 2608 states have call successors, (2608), 377 states have call predecessors, (2608), 376 states have return successors, (2614), 2508 states have call predecessors, (2614), 2604 states have call successors, (2614) [2021-11-23 02:42:46,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7387 states to 7387 states and 11104 transitions. [2021-11-23 02:42:46,949 INFO L78 Accepts]: Start accepts. Automaton has 7387 states and 11104 transitions. Word has length 615 [2021-11-23 02:42:46,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:42:46,955 INFO L470 AbstractCegarLoop]: Abstraction has 7387 states and 11104 transitions. [2021-11-23 02:42:46,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2021-11-23 02:42:46,959 INFO L276 IsEmpty]: Start isEmpty. Operand 7387 states and 11104 transitions. [2021-11-23 02:42:46,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2021-11-23 02:42:46,993 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:42:46,995 INFO L514 BasicCegarLoop]: trace histogram [60, 59, 59, 59, 59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:42:46,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:42:46,997 INFO L402 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)] === [2021-11-23 02:42:47,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:42:47,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1762532157, now seen corresponding path program 1 times [2021-11-23 02:42:47,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:42:47,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278859329] [2021-11-23 02:42:47,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:42:47,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:42:47,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:42:48,391 INFO L134 CoverageAnalysis]: Checked inductivity of 13806 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13806 trivial. 0 not checked. [2021-11-23 02:42:48,394 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:42:48,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278859329] [2021-11-23 02:42:48,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278859329] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:42:48,395 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:42:48,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:42:48,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871429747] [2021-11-23 02:42:48,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:42:48,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:42:48,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:42:48,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:42:48,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:42:48,401 INFO L87 Difference]: Start difference. First operand 7387 states and 11104 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2021-11-23 02:42:51,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:42:54,578 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:00,486 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:02,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:04,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:43:04,908 INFO L93 Difference]: Finished difference Result 21591 states and 32449 transitions. [2021-11-23 02:43:04,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:43:04,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 624 [2021-11-23 02:43:04,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:43:05,110 INFO L225 Difference]: With dead ends: 21591 [2021-11-23 02:43:05,111 INFO L226 Difference]: Without dead ends: 14323 [2021-11-23 02:43:05,193 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:43:05,198 INFO L933 BasicCegarLoop]: 6542 mSDtfsCounter, 5259 mSDsluCounter, 5860 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5266 SdHoareTripleChecker+Valid, 11801 SdHoareTripleChecker+Invalid, 1287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:43:05,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5266 Valid, 11801 Invalid, 1287 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 1278 Invalid, 3 Unknown, 0 Unchecked, 15.7s Time] [2021-11-23 02:43:05,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14323 states. [2021-11-23 02:43:06,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14323 to 14281. [2021-11-23 02:43:06,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14281 states, 8532 states have (on average 1.3384903891233004) internal successors, (11420), 8982 states have internal predecessors, (11420), 5009 states have call successors, (5009), 738 states have call predecessors, (5009), 737 states have return successors, (5034), 4808 states have call predecessors, (5034), 5005 states have call successors, (5034) [2021-11-23 02:43:06,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14281 states to 14281 states and 21463 transitions. [2021-11-23 02:43:06,350 INFO L78 Accepts]: Start accepts. Automaton has 14281 states and 21463 transitions. Word has length 624 [2021-11-23 02:43:06,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:43:06,352 INFO L470 AbstractCegarLoop]: Abstraction has 14281 states and 21463 transitions. [2021-11-23 02:43:06,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2021-11-23 02:43:06,353 INFO L276 IsEmpty]: Start isEmpty. Operand 14281 states and 21463 transitions. [2021-11-23 02:43:06,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2021-11-23 02:43:06,391 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:43:06,391 INFO L514 BasicCegarLoop]: trace histogram [60, 59, 59, 59, 59, 59, 59, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:43:06,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:43:06,392 INFO L402 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)] === [2021-11-23 02:43:06,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:43:06,393 INFO L85 PathProgramCache]: Analyzing trace with hash 908074971, now seen corresponding path program 1 times [2021-11-23 02:43:06,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:43:06,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795142801] [2021-11-23 02:43:06,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:43:06,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:43:06,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:43:07,184 INFO L134 CoverageAnalysis]: Checked inductivity of 13812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13812 trivial. 0 not checked. [2021-11-23 02:43:07,185 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:43:07,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795142801] [2021-11-23 02:43:07,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795142801] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:43:07,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:43:07,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:43:07,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386951653] [2021-11-23 02:43:07,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:43:07,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:43:07,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:43:07,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:43:07,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:43:07,191 INFO L87 Difference]: Start difference. First operand 14281 states and 21463 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) [2021-11-23 02:43:10,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:12,722 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:18,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:22,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:43:22,785 INFO L93 Difference]: Finished difference Result 40821 states and 61370 transitions. [2021-11-23 02:43:22,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:43:22,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) Word has length 642 [2021-11-23 02:43:22,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:43:23,033 INFO L225 Difference]: With dead ends: 40821 [2021-11-23 02:43:23,033 INFO L226 Difference]: Without dead ends: 26659 [2021-11-23 02:43:23,152 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:43:23,154 INFO L933 BasicCegarLoop]: 6623 mSDtfsCounter, 4826 mSDsluCounter, 5880 mSDsCounter, 0 mSdLazyCounter, 1290 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4833 SdHoareTripleChecker+Valid, 11891 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1290 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:43:23,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4833 Valid, 11891 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1290 Invalid, 3 Unknown, 0 Unchecked, 14.7s Time] [2021-11-23 02:43:23,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26659 states. [2021-11-23 02:43:25,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26659 to 26609. [2021-11-23 02:43:25,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26609 states, 15902 states have (on average 1.3392026160231418) internal successors, (21296), 16745 states have internal predecessors, (21296), 9297 states have call successors, (9297), 1408 states have call predecessors, (9297), 1407 states have return successors, (9422), 8887 states have call predecessors, (9422), 9293 states have call successors, (9422) [2021-11-23 02:43:25,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26609 states to 26609 states and 40015 transitions. [2021-11-23 02:43:25,801 INFO L78 Accepts]: Start accepts. Automaton has 26609 states and 40015 transitions. Word has length 642 [2021-11-23 02:43:25,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:43:25,805 INFO L470 AbstractCegarLoop]: Abstraction has 26609 states and 40015 transitions. [2021-11-23 02:43:25,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) [2021-11-23 02:43:25,806 INFO L276 IsEmpty]: Start isEmpty. Operand 26609 states and 40015 transitions. [2021-11-23 02:43:25,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2021-11-23 02:43:25,868 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:43:25,869 INFO L514 BasicCegarLoop]: trace histogram [62, 59, 59, 59, 59, 59, 59, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:43:25,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:43:25,869 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:43:25,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:43:25,871 INFO L85 PathProgramCache]: Analyzing trace with hash -581124741, now seen corresponding path program 1 times [2021-11-23 02:43:25,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:43:25,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551093923] [2021-11-23 02:43:25,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:43:25,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:43:26,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:43:27,040 INFO L134 CoverageAnalysis]: Checked inductivity of 14135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14135 trivial. 0 not checked. [2021-11-23 02:43:27,040 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:43:27,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551093923] [2021-11-23 02:43:27,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551093923] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:43:27,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:43:27,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:43:27,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295309410] [2021-11-23 02:43:27,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:43:27,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:43:27,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:43:27,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:43:27,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:43:27,044 INFO L87 Difference]: Start difference. First operand 26609 states and 40015 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (75), 3 states have call predecessors, (75), 1 states have return successors, (73), 2 states have call predecessors, (73), 2 states have call successors, (73) [2021-11-23 02:43:31,684 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:35,199 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:36,945 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:41,653 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:44,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:47,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:43:47,403 INFO L93 Difference]: Finished difference Result 27589 states and 41308 transitions. [2021-11-23 02:43:47,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:43:47,404 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (75), 3 states have call predecessors, (75), 1 states have return successors, (73), 2 states have call predecessors, (73), 2 states have call successors, (73) Word has length 694 [2021-11-23 02:43:47,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:43:47,638 INFO L225 Difference]: With dead ends: 27589 [2021-11-23 02:43:47,638 INFO L226 Difference]: Without dead ends: 27587 [2021-11-23 02:43:47,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:43:47,667 INFO L933 BasicCegarLoop]: 5528 mSDtfsCounter, 5381 mSDsluCounter, 13697 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5402 SdHoareTripleChecker+Valid, 17839 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:43:47,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5402 Valid, 17839 Invalid, 2040 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2036 Invalid, 3 Unknown, 0 Unchecked, 19.1s Time] [2021-11-23 02:43:47,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27587 states. [2021-11-23 02:43:49,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27587 to 27575. [2021-11-23 02:43:49,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27575 states, 16459 states have (on average 1.3362294185551977) internal successors, (21993), 17342 states have internal predecessors, (21993), 9583 states have call successors, (9583), 1528 states have call predecessors, (9583), 1530 states have return successors, (9720), 9170 states have call predecessors, (9720), 9579 states have call successors, (9720) [2021-11-23 02:43:49,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27575 states to 27575 states and 41296 transitions. [2021-11-23 02:43:49,940 INFO L78 Accepts]: Start accepts. Automaton has 27575 states and 41296 transitions. Word has length 694 [2021-11-23 02:43:49,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:43:49,943 INFO L470 AbstractCegarLoop]: Abstraction has 27575 states and 41296 transitions. [2021-11-23 02:43:49,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (75), 3 states have call predecessors, (75), 1 states have return successors, (73), 2 states have call predecessors, (73), 2 states have call successors, (73) [2021-11-23 02:43:49,943 INFO L276 IsEmpty]: Start isEmpty. Operand 27575 states and 41296 transitions. [2021-11-23 02:43:49,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 700 [2021-11-23 02:43:49,986 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:43:49,987 INFO L514 BasicCegarLoop]: trace histogram [62, 59, 59, 59, 59, 59, 59, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:43:49,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:43:49,988 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:43:49,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:43:49,989 INFO L85 PathProgramCache]: Analyzing trace with hash -349297406, now seen corresponding path program 1 times [2021-11-23 02:43:49,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:43:49,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166247017] [2021-11-23 02:43:49,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:43:49,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:43:50,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:43:51,602 INFO L134 CoverageAnalysis]: Checked inductivity of 14137 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14135 trivial. 0 not checked. [2021-11-23 02:43:51,606 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:43:51,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166247017] [2021-11-23 02:43:51,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166247017] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:43:51,607 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:43:51,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:43:51,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428571255] [2021-11-23 02:43:51,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:43:51,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:43:51,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:43:51,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:43:51,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:43:51,611 INFO L87 Difference]: Start difference. First operand 27575 states and 41296 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (76), 3 states have call predecessors, (76), 1 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2021-11-23 02:43:56,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:59,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:44:04,879 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:44:06,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:44:08,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:44:10,747 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:44:14,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:44:14,125 INFO L93 Difference]: Finished difference Result 27586 states and 41304 transitions. [2021-11-23 02:44:14,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:44:14,127 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (76), 3 states have call predecessors, (76), 1 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) Word has length 699 [2021-11-23 02:44:14,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:44:14,311 INFO L225 Difference]: With dead ends: 27586 [2021-11-23 02:44:14,311 INFO L226 Difference]: Without dead ends: 27584 [2021-11-23 02:44:14,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:44:14,325 INFO L933 BasicCegarLoop]: 5531 mSDtfsCounter, 5377 mSDsluCounter, 13698 mSDsCounter, 0 mSdLazyCounter, 2038 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5395 SdHoareTripleChecker+Valid, 17841 SdHoareTripleChecker+Invalid, 2042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2038 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:44:14,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5395 Valid, 17841 Invalid, 2042 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2038 Invalid, 3 Unknown, 0 Unchecked, 21.4s Time] [2021-11-23 02:44:14,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27584 states. [2021-11-23 02:44:15,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27584 to 27579. [2021-11-23 02:44:15,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27579 states, 16462 states have (on average 1.3361681448183695) internal successors, (21996), 17345 states have internal predecessors, (21996), 9583 states have call successors, (9583), 1529 states have call predecessors, (9583), 1531 states have return successors, (9720), 9170 states have call predecessors, (9720), 9579 states have call successors, (9720) [2021-11-23 02:44:16,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27579 states to 27579 states and 41299 transitions. [2021-11-23 02:44:16,356 INFO L78 Accepts]: Start accepts. Automaton has 27579 states and 41299 transitions. Word has length 699 [2021-11-23 02:44:16,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:44:16,363 INFO L470 AbstractCegarLoop]: Abstraction has 27579 states and 41299 transitions. [2021-11-23 02:44:16,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (76), 3 states have call predecessors, (76), 1 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2021-11-23 02:44:16,364 INFO L276 IsEmpty]: Start isEmpty. Operand 27579 states and 41299 transitions. [2021-11-23 02:44:16,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2021-11-23 02:44:16,403 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:44:16,403 INFO L514 BasicCegarLoop]: trace histogram [62, 59, 59, 59, 59, 59, 59, 8, 8, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:44:16,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:44:16,404 INFO L402 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)] === [2021-11-23 02:44:16,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:44:16,405 INFO L85 PathProgramCache]: Analyzing trace with hash -365432493, now seen corresponding path program 1 times [2021-11-23 02:44:16,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:44:16,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342530060] [2021-11-23 02:44:16,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:44:16,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:44:16,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:44:17,367 INFO L134 CoverageAnalysis]: Checked inductivity of 14155 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 14151 trivial. 0 not checked. [2021-11-23 02:44:17,371 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:44:17,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342530060] [2021-11-23 02:44:17,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342530060] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:44:17,371 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:44:17,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:44:17,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168837469] [2021-11-23 02:44:17,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:44:17,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:44:17,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:44:17,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:44:17,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:44:17,375 INFO L87 Difference]: Start difference. First operand 27579 states and 41299 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (81), 3 states have call predecessors, (81), 1 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) [2021-11-23 02:44:21,175 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:44:24,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:44:30,133 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:44:33,482 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:44:36,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:44:36,836 INFO L93 Difference]: Finished difference Result 27590 states and 41307 transitions. [2021-11-23 02:44:36,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:44:36,837 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (81), 3 states have call predecessors, (81), 1 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) Word has length 712 [2021-11-23 02:44:36,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:44:37,025 INFO L225 Difference]: With dead ends: 27590 [2021-11-23 02:44:37,025 INFO L226 Difference]: Without dead ends: 27588 [2021-11-23 02:44:37,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:44:37,042 INFO L933 BasicCegarLoop]: 5531 mSDtfsCounter, 5375 mSDsluCounter, 13697 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5394 SdHoareTripleChecker+Valid, 17842 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:44:37,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5394 Valid, 17842 Invalid, 2040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2036 Invalid, 3 Unknown, 0 Unchecked, 18.5s Time] [2021-11-23 02:44:37,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27588 states. [2021-11-23 02:44:38,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27588 to 27583. [2021-11-23 02:44:38,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27583 states, 16465 states have (on average 1.3361068934102642) internal successors, (21999), 17348 states have internal predecessors, (21999), 9583 states have call successors, (9583), 1530 states have call predecessors, (9583), 1532 states have return successors, (9720), 9170 states have call predecessors, (9720), 9579 states have call successors, (9720) [2021-11-23 02:44:38,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27583 states to 27583 states and 41302 transitions. [2021-11-23 02:44:38,659 INFO L78 Accepts]: Start accepts. Automaton has 27583 states and 41302 transitions. Word has length 712 [2021-11-23 02:44:38,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:44:38,660 INFO L470 AbstractCegarLoop]: Abstraction has 27583 states and 41302 transitions. [2021-11-23 02:44:38,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (81), 3 states have call predecessors, (81), 1 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) [2021-11-23 02:44:38,661 INFO L276 IsEmpty]: Start isEmpty. Operand 27583 states and 41302 transitions. [2021-11-23 02:44:38,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 718 [2021-11-23 02:44:38,697 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:44:38,697 INFO L514 BasicCegarLoop]: trace histogram [62, 59, 59, 59, 59, 59, 59, 8, 8, 4, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:44:38,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:44:38,698 INFO L402 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)] === [2021-11-23 02:44:38,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:44:38,699 INFO L85 PathProgramCache]: Analyzing trace with hash 657180586, now seen corresponding path program 1 times [2021-11-23 02:44:38,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:44:38,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82843601] [2021-11-23 02:44:38,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:44:38,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:44:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:44:39,828 INFO L134 CoverageAnalysis]: Checked inductivity of 14165 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14159 trivial. 0 not checked. [2021-11-23 02:44:39,829 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:44:39,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82843601] [2021-11-23 02:44:39,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82843601] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:44:39,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:44:39,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:44:39,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279529171] [2021-11-23 02:44:39,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:44:39,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:44:39,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:44:39,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:44:39,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:44:39,833 INFO L87 Difference]: Start difference. First operand 27583 states and 41302 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (82), 3 states have call predecessors, (82), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2021-11-23 02:44:44,068 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:44:47,815 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:44:54,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:44:58,373 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:45:05,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:45:06,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:45:06,570 INFO L93 Difference]: Finished difference Result 54161 states and 82002 transitions. [2021-11-23 02:45:06,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 02:45:06,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (82), 3 states have call predecessors, (82), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) Word has length 717 [2021-11-23 02:45:06,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:45:06,931 INFO L225 Difference]: With dead ends: 54161 [2021-11-23 02:45:06,931 INFO L226 Difference]: Without dead ends: 54159 [2021-11-23 02:45:06,965 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:45:06,967 INFO L933 BasicCegarLoop]: 7501 mSDtfsCounter, 5613 mSDsluCounter, 22118 mSDsCounter, 0 mSdLazyCounter, 2822 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5621 SdHoareTripleChecker+Valid, 27548 SdHoareTripleChecker+Invalid, 2828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2822 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:45:06,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5621 Valid, 27548 Invalid, 2828 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2822 Invalid, 3 Unknown, 0 Unchecked, 24.8s Time] [2021-11-23 02:45:07,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54159 states. [2021-11-23 02:45:09,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54159 to 54136. [2021-11-23 02:45:09,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54136 states, 32369 states have (on average 1.3383175260279898) internal successors, (43320), 34125 states have internal predecessors, (43320), 18765 states have call successors, (18765), 3004 states have call predecessors, (18765), 2999 states have return successors, (19894), 17913 states have call predecessors, (19894), 18757 states have call successors, (19894) [2021-11-23 02:45:09,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54136 states to 54136 states and 81979 transitions. [2021-11-23 02:45:09,938 INFO L78 Accepts]: Start accepts. Automaton has 54136 states and 81979 transitions. Word has length 717 [2021-11-23 02:45:09,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:45:09,939 INFO L470 AbstractCegarLoop]: Abstraction has 54136 states and 81979 transitions. [2021-11-23 02:45:09,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (82), 3 states have call predecessors, (82), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2021-11-23 02:45:09,940 INFO L276 IsEmpty]: Start isEmpty. Operand 54136 states and 81979 transitions. [2021-11-23 02:45:09,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 715 [2021-11-23 02:45:09,993 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:45:09,994 INFO L514 BasicCegarLoop]: trace histogram [62, 59, 59, 59, 59, 59, 59, 7, 7, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:45:09,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 02:45:09,995 INFO L402 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)] === [2021-11-23 02:45:09,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:45:09,996 INFO L85 PathProgramCache]: Analyzing trace with hash 2061184443, now seen corresponding path program 1 times [2021-11-23 02:45:09,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:45:09,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815807566] [2021-11-23 02:45:09,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:45:09,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:45:10,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:45:11,228 INFO L134 CoverageAnalysis]: Checked inductivity of 14167 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 14159 trivial. 0 not checked. [2021-11-23 02:45:11,229 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:45:11,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815807566] [2021-11-23 02:45:11,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815807566] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:45:11,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:45:11,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:45:11,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936671605] [2021-11-23 02:45:11,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:45:11,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:45:11,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:45:11,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:45:11,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:45:11,232 INFO L87 Difference]: Start difference. First operand 54136 states and 81979 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (79), 3 states have call predecessors, (79), 1 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) [2021-11-23 02:45:15,376 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:45:18,862 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:45:24,804 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:45:28,297 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:45:32,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:45:32,214 INFO L93 Difference]: Finished difference Result 54151 states and 81991 transitions. [2021-11-23 02:45:32,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:45:32,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (79), 3 states have call predecessors, (79), 1 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) Word has length 714 [2021-11-23 02:45:32,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:45:32,546 INFO L225 Difference]: With dead ends: 54151 [2021-11-23 02:45:32,546 INFO L226 Difference]: Without dead ends: 54149 [2021-11-23 02:45:32,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:45:32,583 INFO L933 BasicCegarLoop]: 5531 mSDtfsCounter, 5376 mSDsluCounter, 13697 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5393 SdHoareTripleChecker+Valid, 17842 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:45:32,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5393 Valid, 17842 Invalid, 2040 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2036 Invalid, 3 Unknown, 0 Unchecked, 19.1s Time] [2021-11-23 02:45:32,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54149 states. [2021-11-23 02:45:35,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54149 to 54144. [2021-11-23 02:45:35,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54144 states, 32375 states have (on average 1.3382548262548262) internal successors, (43326), 34131 states have internal predecessors, (43326), 18765 states have call successors, (18765), 3006 states have call predecessors, (18765), 3001 states have return successors, (19894), 17913 states have call predecessors, (19894), 18757 states have call successors, (19894) [2021-11-23 02:45:35,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54144 states to 54144 states and 81985 transitions. [2021-11-23 02:45:35,942 INFO L78 Accepts]: Start accepts. Automaton has 54144 states and 81985 transitions. Word has length 714 [2021-11-23 02:45:35,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:45:35,943 INFO L470 AbstractCegarLoop]: Abstraction has 54144 states and 81985 transitions. [2021-11-23 02:45:35,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (79), 3 states have call predecessors, (79), 1 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) [2021-11-23 02:45:35,943 INFO L276 IsEmpty]: Start isEmpty. Operand 54144 states and 81985 transitions. [2021-11-23 02:45:35,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 729 [2021-11-23 02:45:35,977 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:45:35,978 INFO L514 BasicCegarLoop]: trace histogram [62, 59, 59, 59, 59, 59, 59, 8, 8, 6, 5, 5, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:45:35,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 02:45:35,978 INFO L402 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)] === [2021-11-23 02:45:35,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:45:35,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1765262468, now seen corresponding path program 1 times [2021-11-23 02:45:35,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:45:35,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440473951] [2021-11-23 02:45:35,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:45:35,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:45:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:45:37,046 INFO L134 CoverageAnalysis]: Checked inductivity of 14198 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 14188 trivial. 0 not checked. [2021-11-23 02:45:37,047 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:45:37,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440473951] [2021-11-23 02:45:37,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440473951] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:45:37,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:45:37,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:45:37,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531436267] [2021-11-23 02:45:37,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:45:37,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:45:37,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:45:37,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:45:37,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:45:37,051 INFO L87 Difference]: Start difference. First operand 54144 states and 81985 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (84), 3 states have call predecessors, (84), 1 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2021-11-23 02:45:41,062 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:45:44,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:45:50,720 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:45:57,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:45:57,493 INFO L93 Difference]: Finished difference Result 54159 states and 81997 transitions. [2021-11-23 02:45:57,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:45:57,494 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (84), 3 states have call predecessors, (84), 1 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) Word has length 728 [2021-11-23 02:45:57,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:45:57,785 INFO L225 Difference]: With dead ends: 54159 [2021-11-23 02:45:57,785 INFO L226 Difference]: Without dead ends: 54157 [2021-11-23 02:45:57,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:45:57,818 INFO L933 BasicCegarLoop]: 5531 mSDtfsCounter, 5375 mSDsluCounter, 13697 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5391 SdHoareTripleChecker+Valid, 17842 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:45:57,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5391 Valid, 17842 Invalid, 2040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2036 Invalid, 3 Unknown, 0 Unchecked, 18.4s Time] [2021-11-23 02:45:57,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54157 states. [2021-11-23 02:46:00,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54157 to 54152. [2021-11-23 02:46:00,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54152 states, 32381 states have (on average 1.338192149717427) internal successors, (43332), 34137 states have internal predecessors, (43332), 18765 states have call successors, (18765), 3008 states have call predecessors, (18765), 3003 states have return successors, (19894), 17913 states have call predecessors, (19894), 18757 states have call successors, (19894) [2021-11-23 02:46:00,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54152 states to 54152 states and 81991 transitions. [2021-11-23 02:46:00,979 INFO L78 Accepts]: Start accepts. Automaton has 54152 states and 81991 transitions. Word has length 728 [2021-11-23 02:46:00,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:46:00,980 INFO L470 AbstractCegarLoop]: Abstraction has 54152 states and 81991 transitions. [2021-11-23 02:46:00,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (84), 3 states have call predecessors, (84), 1 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2021-11-23 02:46:00,981 INFO L276 IsEmpty]: Start isEmpty. Operand 54152 states and 81991 transitions. [2021-11-23 02:46:01,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 733 [2021-11-23 02:46:01,007 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:46:01,007 INFO L514 BasicCegarLoop]: trace histogram [62, 59, 59, 59, 59, 59, 59, 8, 8, 7, 6, 6, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:46:01,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 02:46:01,007 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:46:01,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:46:01,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1934269037, now seen corresponding path program 1 times [2021-11-23 02:46:01,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:46:01,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415149472] [2021-11-23 02:46:01,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:01,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:46:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:46:02,027 INFO L134 CoverageAnalysis]: Checked inductivity of 14219 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 14207 trivial. 0 not checked. [2021-11-23 02:46:02,028 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:46:02,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415149472] [2021-11-23 02:46:02,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415149472] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:46:02,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:46:02,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:46:02,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865403164] [2021-11-23 02:46:02,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:46:02,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:46:02,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:46:02,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:46:02,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:46:02,031 INFO L87 Difference]: Start difference. First operand 54152 states and 81991 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (85), 3 states have call predecessors, (85), 1 states have return successors, (83), 2 states have call predecessors, (83), 2 states have call successors, (83) [2021-11-23 02:46:06,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:46:09,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:46:15,343 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:46:21,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:46:21,509 INFO L93 Difference]: Finished difference Result 54167 states and 82003 transitions. [2021-11-23 02:46:21,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:46:21,510 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (85), 3 states have call predecessors, (85), 1 states have return successors, (83), 2 states have call predecessors, (83), 2 states have call successors, (83) Word has length 732 [2021-11-23 02:46:21,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:46:21,768 INFO L225 Difference]: With dead ends: 54167 [2021-11-23 02:46:21,768 INFO L226 Difference]: Without dead ends: 54165 [2021-11-23 02:46:21,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:46:21,794 INFO L933 BasicCegarLoop]: 5531 mSDtfsCounter, 5375 mSDsluCounter, 13697 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5390 SdHoareTripleChecker+Valid, 17842 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:46:21,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5390 Valid, 17842 Invalid, 2040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2036 Invalid, 3 Unknown, 0 Unchecked, 17.5s Time] [2021-11-23 02:46:21,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54165 states. [2021-11-23 02:46:24,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54165 to 54160. [2021-11-23 02:46:24,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54160 states, 32387 states have (on average 1.3381294964028776) internal successors, (43338), 34143 states have internal predecessors, (43338), 18765 states have call successors, (18765), 3010 states have call predecessors, (18765), 3005 states have return successors, (19894), 17913 states have call predecessors, (19894), 18757 states have call successors, (19894) [2021-11-23 02:46:25,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54160 states to 54160 states and 81997 transitions. [2021-11-23 02:46:25,037 INFO L78 Accepts]: Start accepts. Automaton has 54160 states and 81997 transitions. Word has length 732 [2021-11-23 02:46:25,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:46:25,038 INFO L470 AbstractCegarLoop]: Abstraction has 54160 states and 81997 transitions. [2021-11-23 02:46:25,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (85), 3 states have call predecessors, (85), 1 states have return successors, (83), 2 states have call predecessors, (83), 2 states have call successors, (83) [2021-11-23 02:46:25,039 INFO L276 IsEmpty]: Start isEmpty. Operand 54160 states and 81997 transitions. [2021-11-23 02:46:25,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 730 [2021-11-23 02:46:25,080 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:46:25,080 INFO L514 BasicCegarLoop]: trace histogram [62, 59, 59, 59, 59, 59, 59, 8, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:46:25,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 02:46:25,081 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:46:25,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:46:25,082 INFO L85 PathProgramCache]: Analyzing trace with hash 652753698, now seen corresponding path program 1 times [2021-11-23 02:46:25,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:46:25,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225117443] [2021-11-23 02:46:25,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:25,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:46:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:46:26,200 INFO L134 CoverageAnalysis]: Checked inductivity of 14233 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 14219 trivial. 0 not checked. [2021-11-23 02:46:26,200 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:46:26,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225117443] [2021-11-23 02:46:26,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225117443] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:46:26,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:46:26,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:46:26,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500672007] [2021-11-23 02:46:26,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:46:26,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:46:26,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:46:26,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:46:26,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:46:26,204 INFO L87 Difference]: Start difference. First operand 54160 states and 81997 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (82), 3 states have call predecessors, (82), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2021-11-23 02:46:30,265 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:46:33,677 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:46:40,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:46:46,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:46:46,273 INFO L93 Difference]: Finished difference Result 54175 states and 82009 transitions. [2021-11-23 02:46:46,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:46:46,273 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (82), 3 states have call predecessors, (82), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) Word has length 729 [2021-11-23 02:46:46,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:46:46,510 INFO L225 Difference]: With dead ends: 54175 [2021-11-23 02:46:46,510 INFO L226 Difference]: Without dead ends: 54173 [2021-11-23 02:46:46,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:46:46,533 INFO L933 BasicCegarLoop]: 5531 mSDtfsCounter, 5376 mSDsluCounter, 13697 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5390 SdHoareTripleChecker+Valid, 17842 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:46:46,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5390 Valid, 17842 Invalid, 2040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2036 Invalid, 3 Unknown, 0 Unchecked, 17.9s Time] [2021-11-23 02:46:46,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54173 states. [2021-11-23 02:46:49,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54173 to 54168. [2021-11-23 02:46:49,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54168 states, 32393 states have (on average 1.3380668662982744) internal successors, (43344), 34149 states have internal predecessors, (43344), 18765 states have call successors, (18765), 3012 states have call predecessors, (18765), 3007 states have return successors, (19894), 17913 states have call predecessors, (19894), 18757 states have call successors, (19894) [2021-11-23 02:46:49,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54168 states to 54168 states and 82003 transitions. [2021-11-23 02:46:49,631 INFO L78 Accepts]: Start accepts. Automaton has 54168 states and 82003 transitions. Word has length 729 [2021-11-23 02:46:49,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:46:49,632 INFO L470 AbstractCegarLoop]: Abstraction has 54168 states and 82003 transitions. [2021-11-23 02:46:49,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (82), 3 states have call predecessors, (82), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2021-11-23 02:46:49,632 INFO L276 IsEmpty]: Start isEmpty. Operand 54168 states and 82003 transitions. [2021-11-23 02:46:49,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 744 [2021-11-23 02:46:49,658 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:46:49,658 INFO L514 BasicCegarLoop]: trace histogram [62, 59, 59, 59, 59, 59, 59, 9, 8, 8, 8, 8, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:46:49,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 02:46:49,659 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:46:49,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:46:49,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1363106041, now seen corresponding path program 1 times [2021-11-23 02:46:49,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:46:49,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779099719] [2021-11-23 02:46:49,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:49,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:46:49,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:46:50,656 INFO L134 CoverageAnalysis]: Checked inductivity of 14276 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 14260 trivial. 0 not checked. [2021-11-23 02:46:50,656 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:46:50,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779099719] [2021-11-23 02:46:50,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779099719] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:46:50,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:46:50,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:46:50,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303779557] [2021-11-23 02:46:50,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:46:50,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:46:50,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:46:50,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:46:50,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:46:50,660 INFO L87 Difference]: Start difference. First operand 54168 states and 82003 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (87), 3 states have call predecessors, (87), 1 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) [2021-11-23 02:46:54,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:46:57,987 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:47:03,382 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:47:09,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:47:09,013 INFO L93 Difference]: Finished difference Result 54183 states and 82015 transitions. [2021-11-23 02:47:09,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:47:09,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (87), 3 states have call predecessors, (87), 1 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) Word has length 743 [2021-11-23 02:47:09,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:47:09,341 INFO L225 Difference]: With dead ends: 54183 [2021-11-23 02:47:09,341 INFO L226 Difference]: Without dead ends: 54181 [2021-11-23 02:47:09,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:47:09,359 INFO L933 BasicCegarLoop]: 5531 mSDtfsCounter, 5375 mSDsluCounter, 13697 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5388 SdHoareTripleChecker+Valid, 17842 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:47:09,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5388 Valid, 17842 Invalid, 2040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2036 Invalid, 3 Unknown, 0 Unchecked, 16.3s Time] [2021-11-23 02:47:09,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54181 states. [2021-11-23 02:47:12,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54181 to 54176. [2021-11-23 02:47:12,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54176 states, 32399 states have (on average 1.338004259390722) internal successors, (43350), 34155 states have internal predecessors, (43350), 18765 states have call successors, (18765), 3014 states have call predecessors, (18765), 3009 states have return successors, (19894), 17913 states have call predecessors, (19894), 18757 states have call successors, (19894) [2021-11-23 02:47:12,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54176 states to 54176 states and 82009 transitions. [2021-11-23 02:47:12,365 INFO L78 Accepts]: Start accepts. Automaton has 54176 states and 82009 transitions. Word has length 743 [2021-11-23 02:47:12,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:47:12,366 INFO L470 AbstractCegarLoop]: Abstraction has 54176 states and 82009 transitions. [2021-11-23 02:47:12,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (87), 3 states have call predecessors, (87), 1 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) [2021-11-23 02:47:12,366 INFO L276 IsEmpty]: Start isEmpty. Operand 54176 states and 82009 transitions. [2021-11-23 02:47:12,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 771 [2021-11-23 02:47:12,394 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:47:12,394 INFO L514 BasicCegarLoop]: trace histogram [60, 59, 59, 59, 59, 59, 59, 11, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:47:12,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 02:47:12,395 INFO L402 AbstractCegarLoop]: === Iteration 13 === 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)] === [2021-11-23 02:47:12,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:47:12,396 INFO L85 PathProgramCache]: Analyzing trace with hash -956792113, now seen corresponding path program 1 times [2021-11-23 02:47:12,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:47:12,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288082254] [2021-11-23 02:47:12,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:47:12,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:47:12,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:47:13,165 INFO L134 CoverageAnalysis]: Checked inductivity of 14024 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14024 trivial. 0 not checked. [2021-11-23 02:47:13,165 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:47:13,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288082254] [2021-11-23 02:47:13,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288082254] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:47:13,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:47:13,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:47:13,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924163237] [2021-11-23 02:47:13,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:47:13,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:47:13,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:47:13,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:47:13,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:47:13,169 INFO L87 Difference]: Start difference. First operand 54176 states and 82009 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (80), 3 states have call predecessors, (80), 3 states have call successors, (80) [2021-11-23 02:47:16,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:47:18,651 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:47:23,347 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:47:29,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:47:33,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:47:33,912 INFO L93 Difference]: Finished difference Result 158891 states and 240757 transitions. [2021-11-23 02:47:33,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:47:33,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (80), 3 states have call predecessors, (80), 3 states have call successors, (80) Word has length 770 [2021-11-23 02:47:33,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:47:34,670 INFO L225 Difference]: With dead ends: 158891 [2021-11-23 02:47:34,670 INFO L226 Difference]: Without dead ends: 104834 [2021-11-23 02:47:34,913 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:47:34,914 INFO L933 BasicCegarLoop]: 7500 mSDtfsCounter, 5251 mSDsluCounter, 5861 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5256 SdHoareTripleChecker+Valid, 12759 SdHoareTripleChecker+Invalid, 1433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:47:34,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5256 Valid, 12759 Invalid, 1433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1424 Invalid, 3 Unknown, 0 Unchecked, 16.0s Time] [2021-11-23 02:47:35,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104834 states. [2021-11-23 02:47:41,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104834 to 104713. [2021-11-23 02:47:41,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104713 states, 62681 states have (on average 1.3382045595954117) internal successors, (83880), 66081 states have internal predecessors, (83880), 36319 states have call successors, (36319), 5722 states have call predecessors, (36319), 5710 states have return successors, (38524), 34644 states have call predecessors, (38524), 36311 states have call successors, (38524)