./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-media-usb-em28xx-em28xx-v4l.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4235cee-a0e9-4280-b65c-fc85db8563bc/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4235cee-a0e9-4280-b65c-fc85db8563bc/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4235cee-a0e9-4280-b65c-fc85db8563bc/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4235cee-a0e9-4280-b65c-fc85db8563bc/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-em28xx-em28xx-v4l.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4235cee-a0e9-4280-b65c-fc85db8563bc/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4235cee-a0e9-4280-b65c-fc85db8563bc/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --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 c92b4575edda3bfe929e4a6f3becf9555a141fd3a841edf990c132d5b9817085 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:37:48,788 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:37:48,854 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4235cee-a0e9-4280-b65c-fc85db8563bc/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 04:37:48,862 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:37:48,862 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:37:48,903 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:37:48,905 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:37:48,905 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:37:48,906 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:37:48,906 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:37:48,907 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:37:48,907 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:37:48,908 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:37:48,908 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:37:48,908 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:37:48,908 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:37:48,908 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:37:48,908 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:37:48,908 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:37:48,909 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:37:48,909 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:37:48,909 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:37:48,910 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:37:48,910 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:37:48,910 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:37:48,910 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:37:48,911 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:37:48,911 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:37:48,911 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:37:48,911 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:37:48,911 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:37:48,911 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:37:48,911 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:37:48,912 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:37:48,912 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:37:48,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:37:48,912 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:37:48,912 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:37:48,912 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:37:48,912 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:37:48,913 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:37:48,913 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:37:48,913 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:37:48,913 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:37:48,914 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_e4235cee-a0e9-4280-b65c-fc85db8563bc/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> c92b4575edda3bfe929e4a6f3becf9555a141fd3a841edf990c132d5b9817085 [2024-11-14 04:37:49,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:37:49,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:37:49,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:37:49,286 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:37:49,286 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:37:49,289 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4235cee-a0e9-4280-b65c-fc85db8563bc/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-em28xx-em28xx-v4l.cil.i Unable to find full path for "g++" [2024-11-14 04:37:51,440 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:37:52,303 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:37:52,304 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4235cee-a0e9-4280-b65c-fc85db8563bc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-em28xx-em28xx-v4l.cil.i [2024-11-14 04:37:52,375 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4235cee-a0e9-4280-b65c-fc85db8563bc/bin/utaipan-verify-sOmjnqqW8E/data/473debe39/9aa9bd29b7334634b8478fbfe4bf277f/FLAG983df71bc [2024-11-14 04:37:52,528 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4235cee-a0e9-4280-b65c-fc85db8563bc/bin/utaipan-verify-sOmjnqqW8E/data/473debe39/9aa9bd29b7334634b8478fbfe4bf277f [2024-11-14 04:37:52,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:37:52,532 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:37:52,534 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:37:52,534 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:37:52,537 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:37:52,538 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:37:52" (1/1) ... [2024-11-14 04:37:52,539 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bae5b1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:52, skipping insertion in model container [2024-11-14 04:37:52,539 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:37:52" (1/1) ... [2024-11-14 04:37:52,704 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:37:55,880 WARN L250 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_e4235cee-a0e9-4280-b65c-fc85db8563bc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-em28xx-em28xx-v4l.cil.i[428009,428022] [2024-11-14 04:37:55,887 WARN L250 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_e4235cee-a0e9-4280-b65c-fc85db8563bc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-em28xx-em28xx-v4l.cil.i[428178,428191] [2024-11-14 04:37:55,888 WARN L250 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_e4235cee-a0e9-4280-b65c-fc85db8563bc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-em28xx-em28xx-v4l.cil.i[428345,428358] [2024-11-14 04:37:55,888 WARN L250 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_e4235cee-a0e9-4280-b65c-fc85db8563bc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-em28xx-em28xx-v4l.cil.i[428513,428526] [2024-11-14 04:37:55,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:37:56,040 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:37:56,257 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5587] [2024-11-14 04:37:56,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/media/usb/em28xx/em28xx-video.c"), "i" (805), "i" (12UL)); [6763-6764] [2024-11-14 04:37:57,089 WARN L250 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_e4235cee-a0e9-4280-b65c-fc85db8563bc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-em28xx-em28xx-v4l.cil.i[428009,428022] [2024-11-14 04:37:57,091 WARN L250 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_e4235cee-a0e9-4280-b65c-fc85db8563bc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-em28xx-em28xx-v4l.cil.i[428178,428191] [2024-11-14 04:37:57,092 WARN L250 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_e4235cee-a0e9-4280-b65c-fc85db8563bc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-em28xx-em28xx-v4l.cil.i[428345,428358] [2024-11-14 04:37:57,092 WARN L250 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_e4235cee-a0e9-4280-b65c-fc85db8563bc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-em28xx-em28xx-v4l.cil.i[428513,428526] [2024-11-14 04:37:57,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:37:57,346 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:37:57,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:57 WrapperNode [2024-11-14 04:37:57,347 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:37:57,349 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:37:57,349 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:37:57,349 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:37:57,356 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:57" (1/1) ... [2024-11-14 04:37:57,545 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:57" (1/1) ... [2024-11-14 04:37:58,683 INFO L138 Inliner]: procedures = 414, calls = 4401, calls flagged for inlining = 199, calls inlined = 190, statements flattened = 9424 [2024-11-14 04:37:58,684 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:37:58,685 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:37:58,685 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:37:58,685 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:37:58,695 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:57" (1/1) ... [2024-11-14 04:37:58,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:57" (1/1) ... [2024-11-14 04:37:59,047 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:57" (1/1) ... [2024-11-14 04:37:59,048 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:57" (1/1) ... [2024-11-14 04:38:00,578 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:57" (1/1) ... [2024-11-14 04:38:00,618 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:57" (1/1) ... [2024-11-14 04:38:00,691 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:57" (1/1) ... [2024-11-14 04:38:00,732 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:57" (1/1) ... [2024-11-14 04:38:00,811 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:38:00,813 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:38:00,813 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:38:00,813 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:38:00,814 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:57" (1/1) ... [2024-11-14 04:38:00,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:38:00,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4235cee-a0e9-4280-b65c-fc85db8563bc/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:38:00,860 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4235cee-a0e9-4280-b65c-fc85db8563bc/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:38:00,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4235cee-a0e9-4280-b65c-fc85db8563bc/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:38:00,902 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_write_regs [2024-11-14 04:38:00,902 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_write_regs [2024-11-14 04:38:00,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-14 04:38:00,903 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-14 04:38:00,903 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_capture_area_set [2024-11-14 04:38:00,903 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_capture_area_set [2024-11-14 04:38:00,903 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_fop_mmap [2024-11-14 04:38:00,903 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_fop_mmap [2024-11-14 04:38:00,903 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_queue_init [2024-11-14 04:38:00,903 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_queue_init [2024-11-14 04:38:00,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-14 04:38:00,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-14 04:38:00,904 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_stop_streaming [2024-11-14 04:38:00,904 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_stop_streaming [2024-11-14 04:38:00,904 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_v4l2_init [2024-11-14 04:38:00,905 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_v4l2_init [2024-11-14 04:38:00,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-14 04:38:00,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-14 04:38:00,906 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_device_unregister [2024-11-14 04:38:00,906 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_device_unregister [2024-11-14 04:38:00,906 INFO L130 BoogieDeclarations]: Found specification of procedure res_free [2024-11-14 04:38:00,906 INFO L138 BoogieDeclarations]: Found implementation of procedure res_free [2024-11-14 04:38:00,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_slock_of_em28xx [2024-11-14 04:38:00,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_slock_of_em28xx [2024-11-14 04:38:00,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_55 [2024-11-14 04:38:00,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_55 [2024-11-14 04:38:00,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-11-14 04:38:00,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-11-14 04:38:00,908 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2024-11-14 04:38:00,908 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2024-11-14 04:38:00,908 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2024-11-14 04:38:00,908 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2024-11-14 04:38:00,908 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2024-11-14 04:38:00,908 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2024-11-14 04:38:00,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-14 04:38:00,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-14 04:38:00,909 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2024-11-14 04:38:00,909 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2024-11-14 04:38:00,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 04:38:00,909 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_vbi_supported [2024-11-14 04:38:00,909 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_vbi_supported [2024-11-14 04:38:00,909 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2024-11-14 04:38:00,909 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2024-11-14 04:38:00,909 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_copy_video [2024-11-14 04:38:00,909 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_copy_video [2024-11-14 04:38:00,909 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~v4l2_std_id~0~TO~int [2024-11-14 04:38:00,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~v4l2_std_id~0~TO~int [2024-11-14 04:38:00,909 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_stop_vbi_streaming [2024-11-14 04:38:00,910 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_stop_vbi_streaming [2024-11-14 04:38:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_i2c_tuner_addrs [2024-11-14 04:38:00,910 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_i2c_tuner_addrs [2024-11-14 04:38:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_try_fmt_vid_cap [2024-11-14 04:38:00,910 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_try_fmt_vid_cap [2024-11-14 04:38:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-14 04:38:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_buffer_done [2024-11-14 04:38:00,910 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_buffer_done [2024-11-14 04:38:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2024-11-14 04:38:00,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2024-11-14 04:38:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-14 04:38:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~TO~int [2024-11-14 04:38:00,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~TO~int [2024-11-14 04:38:00,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-11-14 04:38:00,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-11-14 04:38:00,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 04:38:00,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-14 04:38:00,911 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-14 04:38:00,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2024-11-14 04:38:00,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2024-11-14 04:38:00,911 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_write_reg [2024-11-14 04:38:00,911 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_write_reg [2024-11-14 04:38:00,911 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_disable_ioctl [2024-11-14 04:38:00,911 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_disable_ioctl [2024-11-14 04:38:00,911 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2024-11-14 04:38:00,911 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2024-11-14 04:38:00,911 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2024-11-14 04:38:00,912 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_subscribe_event [2024-11-14 04:38:00,912 INFO L130 BoogieDeclarations]: Found specification of procedure video_get_drvdata [2024-11-14 04:38:00,912 INFO L138 BoogieDeclarations]: Found implementation of procedure video_get_drvdata [2024-11-14 04:38:00,912 INFO L130 BoogieDeclarations]: Found specification of procedure video_unregister_device [2024-11-14 04:38:00,912 INFO L138 BoogieDeclarations]: Found implementation of procedure video_unregister_device [2024-11-14 04:38:00,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-14 04:38:00,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-14 04:38:00,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 04:38:00,912 INFO L130 BoogieDeclarations]: Found specification of procedure video_mux [2024-11-14 04:38:00,913 INFO L138 BoogieDeclarations]: Found implementation of procedure video_mux [2024-11-14 04:38:00,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2024-11-14 04:38:00,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2024-11-14 04:38:00,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2024-11-14 04:38:00,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2024-11-14 04:38:00,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2024-11-14 04:38:00,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2024-11-14 04:38:00,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:38:00,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-14 04:38:00,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-14 04:38:00,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 04:38:00,914 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_audio_analog_set [2024-11-14 04:38:00,914 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_audio_analog_set [2024-11-14 04:38:00,915 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-11-14 04:38:00,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-11-14 04:38:00,915 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_queue [2024-11-14 04:38:00,915 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_queue [2024-11-14 04:38:00,915 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_prepare [2024-11-14 04:38:00,915 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_prepare [2024-11-14 04:38:00,915 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_start_analog_streaming [2024-11-14 04:38:00,916 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_start_analog_streaming [2024-11-14 04:38:00,916 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2024-11-14 04:38:00,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2024-11-14 04:38:00,916 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_read_reg [2024-11-14 04:38:00,916 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_read_reg [2024-11-14 04:38:00,916 INFO L130 BoogieDeclarations]: Found specification of procedure format_by_fourcc [2024-11-14 04:38:00,916 INFO L138 BoogieDeclarations]: Found implementation of procedure format_by_fourcc [2024-11-14 04:38:00,916 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_reg_len [2024-11-14 04:38:00,916 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_reg_len [2024-11-14 04:38:00,917 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_buffer_queue [2024-11-14 04:38:00,917 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_buffer_queue [2024-11-14 04:38:00,917 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fmt_vbi_cap [2024-11-14 04:38:00,917 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fmt_vbi_cap [2024-11-14 04:38:00,917 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-14 04:38:00,917 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-14 04:38:00,917 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2024-11-14 04:38:00,917 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_unsubscribe [2024-11-14 04:38:00,917 INFO L130 BoogieDeclarations]: Found specification of procedure get_ressource [2024-11-14 04:38:00,917 INFO L138 BoogieDeclarations]: Found implementation of procedure get_ressource [2024-11-14 04:38:00,917 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_set_outfmt [2024-11-14 04:38:00,917 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_set_outfmt [2024-11-14 04:38:00,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:38:00,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:38:00,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2024-11-14 04:38:00,918 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2024-11-14 04:38:00,918 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2024-11-14 04:38:00,918 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2024-11-14 04:38:00,918 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ops_wait_finish [2024-11-14 04:38:00,918 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ops_wait_finish [2024-11-14 04:38:00,918 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_set_plane_payload [2024-11-14 04:38:00,918 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_set_plane_payload [2024-11-14 04:38:00,918 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_i2c_new_subdev [2024-11-14 04:38:00,918 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_i2c_new_subdev [2024-11-14 04:38:00,918 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_fop_poll [2024-11-14 04:38:00,918 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_fop_poll [2024-11-14 04:38:00,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-14 04:38:00,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-14 04:38:00,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-14 04:38:00,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-14 04:38:00,919 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2024-11-14 04:38:00,919 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2024-11-14 04:38:00,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-14 04:38:00,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-14 04:38:00,919 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_v4l2_close [2024-11-14 04:38:00,919 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_v4l2_close [2024-11-14 04:38:00,919 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-14 04:38:00,919 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-14 04:38:00,919 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2024-11-14 04:38:00,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2024-11-14 04:38:00,919 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_s_ctrl [2024-11-14 04:38:00,919 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_s_ctrl [2024-11-14 04:38:00,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-14 04:38:00,919 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-14 04:38:00,920 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_buffer_prepare [2024-11-14 04:38:00,920 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_buffer_prepare [2024-11-14 04:38:00,920 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2024-11-14 04:38:00,920 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2024-11-14 04:38:00,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_em28xx_video_unregister_5_2 [2024-11-14 04:38:00,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_em28xx_video_unregister_5_2 [2024-11-14 04:38:00,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 04:38:00,920 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2024-11-14 04:38:00,921 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2024-11-14 04:38:00,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 04:38:00,922 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_find [2024-11-14 04:38:00,922 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_find [2024-11-14 04:38:00,922 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_notify [2024-11-14 04:38:00,922 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_notify [2024-11-14 04:38:00,922 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_set_video_format [2024-11-14 04:38:00,922 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_set_video_format [2024-11-14 04:38:00,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-14 04:38:00,923 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_set_mode [2024-11-14 04:38:00,923 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_set_mode [2024-11-14 04:38:00,923 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-14 04:38:00,923 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-14 04:38:00,923 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_node_name [2024-11-14 04:38:00,923 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_node_name [2024-11-14 04:38:00,924 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2024-11-14 04:38:00,924 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2024-11-14 04:38:00,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-11-14 04:38:00,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-11-14 04:38:00,924 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_resolution_set [2024-11-14 04:38:00,924 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_resolution_set [2024-11-14 04:38:00,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-14 04:38:00,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-14 04:38:00,925 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ops_wait_prepare [2024-11-14 04:38:00,925 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ops_wait_prepare [2024-11-14 04:38:00,925 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2024-11-14 04:38:00,925 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2024-11-14 04:38:00,925 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_v4l2_open [2024-11-14 04:38:00,925 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_v4l2_open [2024-11-14 04:38:00,925 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_vdev_init [2024-11-14 04:38:00,925 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_vdev_init [2024-11-14 04:38:00,925 INFO L130 BoogieDeclarations]: Found specification of procedure video_register_device [2024-11-14 04:38:00,925 INFO L138 BoogieDeclarations]: Found implementation of procedure video_register_device [2024-11-14 04:38:00,926 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_plane_size [2024-11-14 04:38:00,926 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_plane_size [2024-11-14 04:38:00,926 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_videodevice_release [2024-11-14 04:38:00,926 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_videodevice_release [2024-11-14 04:38:00,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 04:38:00,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-14 04:38:00,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-14 04:38:00,926 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_uninit_usb_xfer [2024-11-14 04:38:00,926 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_uninit_usb_xfer [2024-11-14 04:38:00,926 INFO L130 BoogieDeclarations]: Found specification of procedure finish_field_prepare_next [2024-11-14 04:38:00,926 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_field_prepare_next [2024-11-14 04:38:00,927 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_wake_i2c [2024-11-14 04:38:00,927 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_wake_i2c [2024-11-14 04:38:00,927 INFO L130 BoogieDeclarations]: Found specification of procedure size_to_scale [2024-11-14 04:38:00,927 INFO L138 BoogieDeclarations]: Found implementation of procedure size_to_scale [2024-11-14 04:38:00,927 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_get_drv_priv [2024-11-14 04:38:00,927 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_get_drv_priv [2024-11-14 04:38:00,927 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_v4l2_fini [2024-11-14 04:38:00,927 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_v4l2_fini [2024-11-14 04:38:00,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-11-14 04:38:00,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-11-14 04:38:00,927 INFO L130 BoogieDeclarations]: Found specification of procedure scale_to_size [2024-11-14 04:38:00,927 INFO L138 BoogieDeclarations]: Found implementation of procedure scale_to_size [2024-11-14 04:38:00,927 INFO L130 BoogieDeclarations]: Found specification of procedure print_err_status [2024-11-14 04:38:00,927 INFO L138 BoogieDeclarations]: Found implementation of procedure print_err_status [2024-11-14 04:38:00,927 INFO L130 BoogieDeclarations]: Found specification of procedure norm_maxw [2024-11-14 04:38:00,927 INFO L138 BoogieDeclarations]: Found implementation of procedure norm_maxw [2024-11-14 04:38:00,927 INFO L130 BoogieDeclarations]: Found specification of procedure norm_maxh [2024-11-14 04:38:00,927 INFO L138 BoogieDeclarations]: Found implementation of procedure norm_maxh [2024-11-14 04:38:00,928 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-14 04:38:00,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-14 04:38:00,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:38:00,928 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_plane_vaddr [2024-11-14 04:38:00,928 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_plane_vaddr [2024-11-14 04:38:00,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-11-14 04:38:00,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-11-14 04:38:02,742 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:38:02,748 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:38:11,076 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-14 04:38:38,656 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-11-14 04:38:41,481 INFO L? ?]: Removed 3399 outVars from TransFormulas that were not future-live. [2024-11-14 04:38:41,481 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:38:45,179 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:38:45,180 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-14 04:38:45,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:38:45 BoogieIcfgContainer [2024-11-14 04:38:45,180 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:38:45,184 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:38:45,184 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:38:45,201 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:38:45,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:37:52" (1/3) ... [2024-11-14 04:38:45,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41213896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:38:45, skipping insertion in model container [2024-11-14 04:38:45,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:37:57" (2/3) ... [2024-11-14 04:38:45,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41213896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:38:45, skipping insertion in model container [2024-11-14 04:38:45,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:38:45" (3/3) ... [2024-11-14 04:38:45,210 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-em28xx-em28xx-v4l.cil.i [2024-11-14 04:38:45,249 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:38:45,256 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-em28xx-em28xx-v4l.cil.i that has 110 procedures, 1855 locations, 1 initial locations, 6 loop locations, and 3 error locations. [2024-11-14 04:38:45,474 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:38:45,502 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@26f325ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:38:45,502 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-14 04:38:45,521 INFO L276 IsEmpty]: Start isEmpty. Operand has 1853 states, 1181 states have (on average 1.363251481795089) internal successors, (1610), 1196 states have internal predecessors, (1610), 561 states have call successors, (561), 109 states have call predecessors, (561), 108 states have return successors, (554), 553 states have call predecessors, (554), 554 states have call successors, (554) [2024-11-14 04:38:45,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2024-11-14 04:38:45,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:38:45,561 INFO L215 NwaCegarLoop]: trace histogram [39, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:38:45,561 INFO L396 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)] === [2024-11-14 04:38:45,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:38:45,568 INFO L85 PathProgramCache]: Analyzing trace with hash -2013522935, now seen corresponding path program 1 times [2024-11-14 04:38:45,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:38:45,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25445691] [2024-11-14 04:38:45,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:38:45,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:40:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:40:22,169 INFO L134 CoverageAnalysis]: Checked inductivity of 5700 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5700 trivial. 0 not checked. [2024-11-14 04:40:22,172 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:40:22,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25445691] [2024-11-14 04:40:22,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25445691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:40:22,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:40:22,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:40:22,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213483927] [2024-11-14 04:40:22,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:40:22,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:40:22,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:40:22,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:40:22,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:40:22,222 INFO L87 Difference]: Start difference. First operand has 1853 states, 1181 states have (on average 1.363251481795089) internal successors, (1610), 1196 states have internal predecessors, (1610), 561 states have call successors, (561), 109 states have call predecessors, (561), 108 states have return successors, (554), 553 states have call predecessors, (554), 554 states have call successors, (554) Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2024-11-14 04:40:24,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:40:26,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:40:29,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:40:38,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:40:41,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:40:42,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:40:43,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:40:43,889 INFO L93 Difference]: Finished difference Result 5336 states and 7921 transitions. [2024-11-14 04:40:43,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:40:43,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 395 [2024-11-14 04:40:43,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:40:43,973 INFO L225 Difference]: With dead ends: 5336 [2024-11-14 04:40:43,974 INFO L226 Difference]: Without dead ends: 3549 [2024-11-14 04:40:43,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:40:44,002 INFO L432 NwaCegarLoop]: 2356 mSDtfsCounter, 2515 mSDsluCounter, 2321 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2515 SdHoareTripleChecker+Valid, 4677 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.3s IncrementalHoareTripleChecker+Time [2024-11-14 04:40:44,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2515 Valid, 4677 Invalid, 780 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 764 Invalid, 3 Unknown, 0 Unchecked, 21.3s Time] [2024-11-14 04:40:44,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3549 states. [2024-11-14 04:40:44,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3549 to 3545. [2024-11-14 04:40:44,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3545 states, 2286 states have (on average 1.3613298337707787) internal successors, (3112), 2315 states have internal predecessors, (3112), 1044 states have call successors, (1044), 213 states have call predecessors, (1044), 212 states have return successors, (1040), 1038 states have call predecessors, (1040), 1040 states have call successors, (1040) [2024-11-14 04:40:44,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3545 states to 3545 states and 5196 transitions. [2024-11-14 04:40:44,511 INFO L78 Accepts]: Start accepts. Automaton has 3545 states and 5196 transitions. Word has length 395 [2024-11-14 04:40:44,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:40:44,516 INFO L471 AbstractCegarLoop]: Abstraction has 3545 states and 5196 transitions. [2024-11-14 04:40:44,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2024-11-14 04:40:44,516 INFO L276 IsEmpty]: Start isEmpty. Operand 3545 states and 5196 transitions. [2024-11-14 04:40:44,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2024-11-14 04:40:44,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:40:44,543 INFO L215 NwaCegarLoop]: trace histogram [40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:40:44,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:40:44,544 INFO L396 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)] === [2024-11-14 04:40:44,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:40:44,545 INFO L85 PathProgramCache]: Analyzing trace with hash -615615365, now seen corresponding path program 1 times [2024-11-14 04:40:44,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:40:44,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009370222] [2024-11-14 04:40:44,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:40:44,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:42:35,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:42:37,990 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6006 trivial. 0 not checked. [2024-11-14 04:42:37,990 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:42:37,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009370222] [2024-11-14 04:42:37,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009370222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:42:37,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:42:37,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:42:37,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80195484] [2024-11-14 04:42:37,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:42:37,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:42:37,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:42:37,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:42:37,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:42:37,996 INFO L87 Difference]: Start difference. First operand 3545 states and 5196 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2024-11-14 04:42:40,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:42:42,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:42:56,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:42:56,182 INFO L93 Difference]: Finished difference Result 8691 states and 12725 transitions. [2024-11-14 04:42:56,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:42:56,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 425 [2024-11-14 04:42:56,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:42:56,231 INFO L225 Difference]: With dead ends: 8691 [2024-11-14 04:42:56,231 INFO L226 Difference]: Without dead ends: 5223 [2024-11-14 04:42:56,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:42:56,254 INFO L432 NwaCegarLoop]: 2379 mSDtfsCounter, 2493 mSDsluCounter, 2307 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2493 SdHoareTripleChecker+Valid, 4686 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:42:56,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2493 Valid, 4686 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 761 Invalid, 2 Unknown, 0 Unchecked, 17.8s Time] [2024-11-14 04:42:56,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5223 states. [2024-11-14 04:42:56,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5223 to 5196. [2024-11-14 04:42:56,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5196 states, 3367 states have (on average 1.3632313632313633) internal successors, (4590), 3411 states have internal predecessors, (4590), 1508 states have call successors, (1508), 319 states have call predecessors, (1508), 318 states have return successors, (1504), 1498 states have call predecessors, (1504), 1504 states have call successors, (1504) [2024-11-14 04:42:56,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5196 states to 5196 states and 7602 transitions. [2024-11-14 04:42:56,586 INFO L78 Accepts]: Start accepts. Automaton has 5196 states and 7602 transitions. Word has length 425 [2024-11-14 04:42:56,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:42:56,589 INFO L471 AbstractCegarLoop]: Abstraction has 5196 states and 7602 transitions. [2024-11-14 04:42:56,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2024-11-14 04:42:56,589 INFO L276 IsEmpty]: Start isEmpty. Operand 5196 states and 7602 transitions. [2024-11-14 04:42:56,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2024-11-14 04:42:56,607 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:42:56,607 INFO L215 NwaCegarLoop]: trace histogram [40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:42:56,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 04:42:56,608 INFO L396 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)] === [2024-11-14 04:42:56,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:42:56,608 INFO L85 PathProgramCache]: Analyzing trace with hash -496190036, now seen corresponding path program 1 times [2024-11-14 04:42:56,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:42:56,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941515103] [2024-11-14 04:42:56,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:42:56,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:44:38,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:44:40,235 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6006 trivial. 0 not checked. [2024-11-14 04:44:40,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:44:40,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941515103] [2024-11-14 04:44:40,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941515103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:44:40,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:44:40,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:44:40,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601813149] [2024-11-14 04:44:40,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:44:40,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:44:40,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:44:40,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:44:40,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:44:40,241 INFO L87 Difference]: Start difference. First operand 5196 states and 7602 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2024-11-14 04:44:42,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:44:44,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:44:56,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:44:56,420 INFO L93 Difference]: Finished difference Result 13589 states and 19879 transitions. [2024-11-14 04:44:56,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:44:56,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 425 [2024-11-14 04:44:56,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:44:56,492 INFO L225 Difference]: With dead ends: 13589 [2024-11-14 04:44:56,492 INFO L226 Difference]: Without dead ends: 8470 [2024-11-14 04:44:56,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:44:56,521 INFO L432 NwaCegarLoop]: 2451 mSDtfsCounter, 2489 mSDsluCounter, 2307 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2489 SdHoareTripleChecker+Valid, 4758 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2024-11-14 04:44:56,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2489 Valid, 4758 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 782 Invalid, 2 Unknown, 0 Unchecked, 15.9s Time] [2024-11-14 04:44:56,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8470 states. [2024-11-14 04:44:56,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8470 to 8443. [2024-11-14 04:44:56,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8443 states, 5491 states have (on average 1.364232380258605) internal successors, (7491), 5565 states have internal predecessors, (7491), 2429 states have call successors, (2429), 521 states have call predecessors, (2429), 520 states have return successors, (2425), 2411 states have call predecessors, (2425), 2425 states have call successors, (2425) [2024-11-14 04:44:56,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8443 states to 8443 states and 12345 transitions. [2024-11-14 04:44:56,984 INFO L78 Accepts]: Start accepts. Automaton has 8443 states and 12345 transitions. Word has length 425 [2024-11-14 04:44:56,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:44:56,986 INFO L471 AbstractCegarLoop]: Abstraction has 8443 states and 12345 transitions. [2024-11-14 04:44:56,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2024-11-14 04:44:56,986 INFO L276 IsEmpty]: Start isEmpty. Operand 8443 states and 12345 transitions. [2024-11-14 04:44:56,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2024-11-14 04:44:56,997 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:44:56,997 INFO L215 NwaCegarLoop]: trace histogram [41, 38, 38, 38, 38, 38, 38, 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] [2024-11-14 04:44:56,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 04:44:56,998 INFO L396 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)] === [2024-11-14 04:44:56,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:44:56,999 INFO L85 PathProgramCache]: Analyzing trace with hash -809193681, now seen corresponding path program 1 times [2024-11-14 04:44:57,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:44:57,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846450646] [2024-11-14 04:44:57,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:44:57,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:46:22,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:46:25,782 INFO L134 CoverageAnalysis]: Checked inductivity of 5862 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5862 trivial. 0 not checked. [2024-11-14 04:46:25,782 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:46:25,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846450646] [2024-11-14 04:46:25,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846450646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:46:25,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:46:25,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:46:25,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759294288] [2024-11-14 04:46:25,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:46:25,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:46:25,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:46:25,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:46:25,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:46:25,785 INFO L87 Difference]: Start difference. First operand 8443 states and 12345 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-14 04:46:27,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:46:30,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:46:32,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:46:46,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:46:48,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:46:48,592 INFO L93 Difference]: Finished difference Result 8449 states and 12350 transitions. [2024-11-14 04:46:48,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:46:48,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 427 [2024-11-14 04:46:48,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:46:48,667 INFO L225 Difference]: With dead ends: 8449 [2024-11-14 04:46:48,671 INFO L226 Difference]: Without dead ends: 8447 [2024-11-14 04:46:48,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 04:46:48,678 INFO L432 NwaCegarLoop]: 2328 mSDtfsCounter, 2600 mSDsluCounter, 4647 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2601 SdHoareTripleChecker+Valid, 6975 SdHoareTripleChecker+Invalid, 1112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:46:48,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2601 Valid, 6975 Invalid, 1112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1108 Invalid, 4 Unknown, 0 Unchecked, 22.4s Time] [2024-11-14 04:46:48,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8447 states. [2024-11-14 04:46:49,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8447 to 8447. [2024-11-14 04:46:49,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8447 states, 5494 states have (on average 1.3640334910811795) internal successors, (7494), 5568 states have internal predecessors, (7494), 2429 states have call successors, (2429), 522 states have call predecessors, (2429), 521 states have return successors, (2425), 2411 states have call predecessors, (2425), 2425 states have call successors, (2425) [2024-11-14 04:46:49,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8447 states to 8447 states and 12348 transitions. [2024-11-14 04:46:49,158 INFO L78 Accepts]: Start accepts. Automaton has 8447 states and 12348 transitions. Word has length 427 [2024-11-14 04:46:49,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:46:49,159 INFO L471 AbstractCegarLoop]: Abstraction has 8447 states and 12348 transitions. [2024-11-14 04:46:49,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-11-14 04:46:49,160 INFO L276 IsEmpty]: Start isEmpty. Operand 8447 states and 12348 transitions. [2024-11-14 04:46:49,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2024-11-14 04:46:49,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:46:49,173 INFO L215 NwaCegarLoop]: trace histogram [41, 38, 38, 38, 38, 38, 38, 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] [2024-11-14 04:46:49,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 04:46:49,173 INFO L396 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)] === [2024-11-14 04:46:49,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:46:49,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1932439679, now seen corresponding path program 1 times [2024-11-14 04:46:49,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:46:49,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790030982] [2024-11-14 04:46:49,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:46:49,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:48:17,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:48:21,117 INFO L134 CoverageAnalysis]: Checked inductivity of 5865 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5863 trivial. 0 not checked. [2024-11-14 04:48:21,117 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:48:21,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790030982] [2024-11-14 04:48:21,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790030982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:48:21,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:48:21,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:48:21,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028155680] [2024-11-14 04:48:21,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:48:21,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:48:21,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:48:21,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:48:21,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:48:21,119 INFO L87 Difference]: Start difference. First operand 8447 states and 12348 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2024-11-14 04:48:23,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:48:25,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:48:28,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:48:42,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:48:45,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:48:45,115 INFO L93 Difference]: Finished difference Result 8453 states and 12353 transitions. [2024-11-14 04:48:45,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:48:45,115 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 433 [2024-11-14 04:48:45,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:48:45,165 INFO L225 Difference]: With dead ends: 8453 [2024-11-14 04:48:45,166 INFO L226 Difference]: Without dead ends: 8451 [2024-11-14 04:48:45,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 04:48:45,173 INFO L432 NwaCegarLoop]: 2331 mSDtfsCounter, 2596 mSDsluCounter, 4648 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2597 SdHoareTripleChecker+Valid, 6979 SdHoareTripleChecker+Invalid, 1113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:48:45,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2597 Valid, 6979 Invalid, 1113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1109 Invalid, 4 Unknown, 0 Unchecked, 23.6s Time] [2024-11-14 04:48:45,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8451 states. [2024-11-14 04:48:45,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8451 to 8451. [2024-11-14 04:48:45,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8451 states, 5497 states have (on average 1.3638348189921776) internal successors, (7497), 5571 states have internal predecessors, (7497), 2429 states have call successors, (2429), 523 states have call predecessors, (2429), 522 states have return successors, (2425), 2411 states have call predecessors, (2425), 2425 states have call successors, (2425) [2024-11-14 04:48:45,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8451 states to 8451 states and 12351 transitions. [2024-11-14 04:48:45,737 INFO L78 Accepts]: Start accepts. Automaton has 8451 states and 12351 transitions. Word has length 433 [2024-11-14 04:48:45,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:48:45,740 INFO L471 AbstractCegarLoop]: Abstraction has 8451 states and 12351 transitions. [2024-11-14 04:48:45,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2024-11-14 04:48:45,740 INFO L276 IsEmpty]: Start isEmpty. Operand 8451 states and 12351 transitions. [2024-11-14 04:48:45,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2024-11-14 04:48:45,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:48:45,753 INFO L215 NwaCegarLoop]: trace histogram [41, 38, 38, 38, 38, 38, 38, 3, 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] [2024-11-14 04:48:45,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 04:48:45,753 INFO L396 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)] === [2024-11-14 04:48:45,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:48:45,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1563328273, now seen corresponding path program 1 times [2024-11-14 04:48:45,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:48:45,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92308087] [2024-11-14 04:48:45,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:48:45,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:50:17,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:50:20,472 INFO L134 CoverageAnalysis]: Checked inductivity of 5870 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5866 trivial. 0 not checked. [2024-11-14 04:50:20,472 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:50:20,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92308087] [2024-11-14 04:50:20,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92308087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:50:20,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:50:20,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:50:20,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207118515] [2024-11-14 04:50:20,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:50:20,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:50:20,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:50:20,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:50:20,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:50:20,475 INFO L87 Difference]: Start difference. First operand 8451 states and 12351 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2024-11-14 04:50:22,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:50:25,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:50:27,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:50:43,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:50:45,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:50:45,930 INFO L93 Difference]: Finished difference Result 8457 states and 12356 transitions. [2024-11-14 04:50:45,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:50:45,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 437 [2024-11-14 04:50:45,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:50:46,000 INFO L225 Difference]: With dead ends: 8457 [2024-11-14 04:50:46,000 INFO L226 Difference]: Without dead ends: 8455 [2024-11-14 04:50:46,009 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 04:50:46,010 INFO L432 NwaCegarLoop]: 2331 mSDtfsCounter, 2595 mSDsluCounter, 4648 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2596 SdHoareTripleChecker+Valid, 6979 SdHoareTripleChecker+Invalid, 1113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:50:46,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2596 Valid, 6979 Invalid, 1113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1109 Invalid, 4 Unknown, 0 Unchecked, 24.8s Time] [2024-11-14 04:50:46,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8455 states. [2024-11-14 04:50:46,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8455 to 8455. [2024-11-14 04:50:46,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8455 states, 5500 states have (on average 1.3636363636363635) internal successors, (7500), 5574 states have internal predecessors, (7500), 2429 states have call successors, (2429), 524 states have call predecessors, (2429), 523 states have return successors, (2425), 2411 states have call predecessors, (2425), 2425 states have call successors, (2425) [2024-11-14 04:50:46,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8455 states to 8455 states and 12354 transitions. [2024-11-14 04:50:46,649 INFO L78 Accepts]: Start accepts. Automaton has 8455 states and 12354 transitions. Word has length 437 [2024-11-14 04:50:46,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:50:46,650 INFO L471 AbstractCegarLoop]: Abstraction has 8455 states and 12354 transitions. [2024-11-14 04:50:46,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2024-11-14 04:50:46,650 INFO L276 IsEmpty]: Start isEmpty. Operand 8455 states and 12354 transitions. [2024-11-14 04:50:46,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2024-11-14 04:50:46,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:50:46,661 INFO L215 NwaCegarLoop]: trace histogram [41, 38, 38, 38, 38, 38, 38, 4, 3, 3, 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] [2024-11-14 04:50:46,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 04:50:46,662 INFO L396 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)] === [2024-11-14 04:50:46,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:50:46,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1251669889, now seen corresponding path program 1 times [2024-11-14 04:50:46,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:50:46,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409566733] [2024-11-14 04:50:46,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:50:46,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms