./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-mutex_drivers-media-rc-imon.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa97b6d-b071-42af-9234-2e27f0306bb1/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa97b6d-b071-42af-9234-2e27f0306bb1/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa97b6d-b071-42af-9234-2e27f0306bb1/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa97b6d-b071-42af-9234-2e27f0306bb1/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa97b6d-b071-42af-9234-2e27f0306bb1/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa97b6d-b071-42af-9234-2e27f0306bb1/bin/utaipan-verify-YMUCfTKeje --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 0218c205b1f42ba405c10b64ad30f25a08546eebc84cd72110e50d60099a95cf --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:14:44,266 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:14:44,354 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa97b6d-b071-42af-9234-2e27f0306bb1/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 06:14:44,360 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:14:44,360 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:14:44,387 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:14:44,388 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:14:44,389 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:14:44,389 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:14:44,390 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:14:44,390 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:14:44,391 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:14:44,391 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:14:44,392 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:14:44,392 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:14:44,393 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:14:44,393 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:14:44,400 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:14:44,401 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:14:44,401 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:14:44,402 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:14:44,406 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:14:44,407 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:14:44,407 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:14:44,408 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:14:44,408 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:14:44,408 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:14:44,409 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:14:44,409 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:14:44,410 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:14:44,410 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:14:44,410 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:14:44,411 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:14:44,411 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:14:44,412 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:14:44,412 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:14:44,412 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:14:44,413 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:14:44,413 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:14:44,414 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:14:44,414 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:14:44,417 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:14:44,417 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:14:44,417 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:14:44,418 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa97b6d-b071-42af-9234-2e27f0306bb1/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa97b6d-b071-42af-9234-2e27f0306bb1/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0218c205b1f42ba405c10b64ad30f25a08546eebc84cd72110e50d60099a95cf [2024-11-09 06:14:44,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:14:44,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:14:44,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:14:44,790 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:14:44,791 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:14:44,793 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa97b6d-b071-42af-9234-2e27f0306bb1/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i Unable to find full path for "g++" [2024-11-09 06:14:47,270 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:14:47,983 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:14:47,984 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa97b6d-b071-42af-9234-2e27f0306bb1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i [2024-11-09 06:14:48,043 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa97b6d-b071-42af-9234-2e27f0306bb1/bin/utaipan-verify-YMUCfTKeje/data/89dbe1e47/1b63b81e0f6d427a83e1ad7801f08e30/FLAG772f6ef61 [2024-11-09 06:14:48,066 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa97b6d-b071-42af-9234-2e27f0306bb1/bin/utaipan-verify-YMUCfTKeje/data/89dbe1e47/1b63b81e0f6d427a83e1ad7801f08e30 [2024-11-09 06:14:48,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:14:48,070 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:14:48,072 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:14:48,072 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:14:48,078 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:14:48,079 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:14:48" (1/1) ... [2024-11-09 06:14:48,081 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c25a3ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:14:48, skipping insertion in model container [2024-11-09 06:14:48,081 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:14:48" (1/1) ... [2024-11-09 06:14:48,294 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:14:51,267 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_0aa97b6d-b071-42af-9234-2e27f0306bb1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284136,284149] [2024-11-09 06:14:51,273 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_0aa97b6d-b071-42af-9234-2e27f0306bb1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284302,284315] [2024-11-09 06:14:51,274 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_0aa97b6d-b071-42af-9234-2e27f0306bb1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284466,284479] [2024-11-09 06:14:51,274 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_0aa97b6d-b071-42af-9234-2e27f0306bb1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284631,284644] [2024-11-09 06:14:51,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:14:51,370 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:14:51,560 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3861] [2024-11-09 06:14:51,564 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3916] [2024-11-09 06:14:51,565 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3919] [2024-11-09 06:14:51,565 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3922] [2024-11-09 06:14:51,566 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3925] [2024-11-09 06:14:51,616 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4628] [2024-11-09 06:14:51,617 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4634] [2024-11-09 06:14:51,625 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (tmp___5->state): : "memory", "cc"); [4749-4750] [2024-11-09 06:14:51,625 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (tmp___6->state): : "memory", "cc"); [4756-4757] [2024-11-09 06:14:51,626 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (tmp___7->state): : "memory", "cc"); [4763-4764] [2024-11-09 06:14:51,626 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (tmp___8->state): : "memory", "cc"); [4770-4771] [2024-11-09 06:14:51,675 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [5506] [2024-11-09 06:14:51,921 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_0aa97b6d-b071-42af-9234-2e27f0306bb1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284136,284149] [2024-11-09 06:14:51,923 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_0aa97b6d-b071-42af-9234-2e27f0306bb1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284302,284315] [2024-11-09 06:14:51,923 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_0aa97b6d-b071-42af-9234-2e27f0306bb1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284466,284479] [2024-11-09 06:14:51,924 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_0aa97b6d-b071-42af-9234-2e27f0306bb1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284631,284644] [2024-11-09 06:14:51,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:14:52,078 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:14:52,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:14:52 WrapperNode [2024-11-09 06:14:52,080 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:14:52,081 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:14:52,081 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:14:52,081 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:14:52,091 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:14:52" (1/1) ... [2024-11-09 06:14:52,210 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:14:52" (1/1) ... [2024-11-09 06:14:52,417 INFO L138 Inliner]: procedures = 343, calls = 2873, calls flagged for inlining = 192, calls inlined = 162, statements flattened = 5232 [2024-11-09 06:14:52,418 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:14:52,418 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:14:52,419 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:14:52,419 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:14:52,431 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:14:52" (1/1) ... [2024-11-09 06:14:52,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:14:52" (1/1) ... [2024-11-09 06:14:52,504 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:14:52" (1/1) ... [2024-11-09 06:14:52,505 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:14:52" (1/1) ... [2024-11-09 06:14:52,673 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:14:52" (1/1) ... [2024-11-09 06:14:52,700 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:14:52" (1/1) ... [2024-11-09 06:14:52,736 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:14:52" (1/1) ... [2024-11-09 06:14:52,755 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:14:52" (1/1) ... [2024-11-09 06:14:52,796 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:14:52,798 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:14:52,799 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:14:52,799 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:14:52,800 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:14:52" (1/1) ... [2024-11-09 06:14:52,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:14:52,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa97b6d-b071-42af-9234-2e27f0306bb1/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:14:52,846 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa97b6d-b071-42af-9234-2e27f0306bb1/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:14:52,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0aa97b6d-b071-42af-9234-2e27f0306bb1/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:14:52,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2024-11-09 06:14:52,887 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2024-11-09 06:14:52,887 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2024-11-09 06:14:52,887 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2024-11-09 06:14:52,887 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2024-11-09 06:14:52,887 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2024-11-09 06:14:52,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-09 06:14:52,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 06:14:52,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-09 06:14:52,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-09 06:14:52,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-09 06:14:52,888 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-09 06:14:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2024-11-09 06:14:52,889 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2024-11-09 06:14:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2024-11-09 06:14:52,889 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2024-11-09 06:14:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2024-11-09 06:14:52,889 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2024-11-09 06:14:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 06:14:52,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 06:14:52,890 INFO L130 BoogieDeclarations]: Found specification of procedure send_packet [2024-11-09 06:14:52,890 INFO L138 BoogieDeclarations]: Found implementation of procedure send_packet [2024-11-09 06:14:52,890 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2024-11-09 06:14:52,890 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2024-11-09 06:14:52,890 INFO L130 BoogieDeclarations]: Found specification of procedure imon_disconnect [2024-11-09 06:14:52,890 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_disconnect [2024-11-09 06:14:52,891 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2024-11-09 06:14:52,891 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2024-11-09 06:14:52,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_imon_context [2024-11-09 06:14:52,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_imon_context [2024-11-09 06:14:52,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_5_4 [2024-11-09 06:14:52,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_5_4 [2024-11-09 06:14:52,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2024-11-09 06:14:52,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2024-11-09 06:14:52,892 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-09 06:14:52,892 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-09 06:14:52,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_driver_lock [2024-11-09 06:14:52,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_driver_lock [2024-11-09 06:14:52,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:14:52,892 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2024-11-09 06:14:52,893 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2024-11-09 06:14:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 06:14:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-11-09 06:14:52,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-11-09 06:14:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-09 06:14:52,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-09 06:14:52,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2024-11-09 06:14:52,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2024-11-09 06:14:52,894 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2024-11-09 06:14:52,894 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2024-11-09 06:14:52,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:14:52,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 06:14:52,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_imon_driver_exit_11_2 [2024-11-09 06:14:52,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_imon_driver_exit_11_2 [2024-11-09 06:14:52,895 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-09 06:14:52,895 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-09 06:14:52,895 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-09 06:14:52,895 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-09 06:14:52,895 INFO L130 BoogieDeclarations]: Found specification of procedure imon_resume [2024-11-09 06:14:52,895 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_resume [2024-11-09 06:14:52,895 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-09 06:14:52,896 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-09 06:14:52,896 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2024-11-09 06:14:52,896 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2024-11-09 06:14:52,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-11-09 06:14:52,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-11-09 06:14:52,896 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2024-11-09 06:14:52,896 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2024-11-09 06:14:52,897 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2024-11-09 06:14:52,897 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2024-11-09 06:14:52,897 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2024-11-09 06:14:52,897 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2024-11-09 06:14:52,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-09 06:14:52,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-09 06:14:52,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-09 06:14:52,898 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-11-09 06:14:52,898 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-11-09 06:14:52,898 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2024-11-09 06:14:52,898 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2024-11-09 06:14:52,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 06:14:52,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-11-09 06:14:52,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-11-09 06:14:52,899 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2024-11-09 06:14:52,899 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2024-11-09 06:14:52,899 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2024-11-09 06:14:52,899 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2024-11-09 06:14:52,899 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2024-11-09 06:14:52,899 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2024-11-09 06:14:52,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:14:52,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2024-11-09 06:14:52,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2024-11-09 06:14:52,900 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2024-11-09 06:14:52,900 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2024-11-09 06:14:52,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-09 06:14:52,900 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-09 06:14:52,900 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-09 06:14:52,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-09 06:14:52,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2024-11-09 06:14:52,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2024-11-09 06:14:52,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2024-11-09 06:14:52,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2024-11-09 06:14:52,901 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2024-11-09 06:14:52,901 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2024-11-09 06:14:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2024-11-09 06:14:52,902 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2024-11-09 06:14:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-09 06:14:52,902 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-09 06:14:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2024-11-09 06:14:52,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2024-11-09 06:14:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:14:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2024-11-09 06:14:52,903 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2024-11-09 06:14:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2024-11-09 06:14:52,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2024-11-09 06:14:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2024-11-09 06:14:52,904 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2024-11-09 06:14:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2024-11-09 06:14:52,904 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2024-11-09 06:14:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-09 06:14:52,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-09 06:14:52,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 06:14:52,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2024-11-09 06:14:52,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2024-11-09 06:14:52,905 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2024-11-09 06:14:52,905 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2024-11-09 06:14:52,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_imon_context [2024-11-09 06:14:52,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_imon_context [2024-11-09 06:14:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2024-11-09 06:14:52,906 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2024-11-09 06:14:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:14:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-09 06:14:52,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-09 06:14:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 06:14:52,906 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2024-11-09 06:14:52,907 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2024-11-09 06:14:52,907 INFO L130 BoogieDeclarations]: Found specification of procedure display_close [2024-11-09 06:14:52,907 INFO L138 BoogieDeclarations]: Found implementation of procedure display_close [2024-11-09 06:14:52,907 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2024-11-09 06:14:52,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2024-11-09 06:14:52,907 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-11-09 06:14:52,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-11-09 06:14:52,908 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2024-11-09 06:14:52,908 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2024-11-09 06:14:52,908 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2024-11-09 06:14:52,908 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2024-11-09 06:14:52,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-11-09 06:14:52,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-11-09 06:14:52,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_driver_lock [2024-11-09 06:14:52,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_driver_lock [2024-11-09 06:14:52,909 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2024-11-09 06:14:52,909 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2024-11-09 06:14:52,909 INFO L130 BoogieDeclarations]: Found specification of procedure imon_find_endpoints [2024-11-09 06:14:52,909 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_find_endpoints [2024-11-09 06:14:52,909 INFO L130 BoogieDeclarations]: Found specification of procedure display_open [2024-11-09 06:14:52,909 INFO L138 BoogieDeclarations]: Found implementation of procedure display_open [2024-11-09 06:14:52,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:14:52,910 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2024-11-09 06:14:52,910 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2024-11-09 06:14:52,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-11-09 06:14:52,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-11-09 06:14:52,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:14:52,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:14:53,880 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:14:53,885 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:14:54,289 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-09 06:15:33,865 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-11-09 06:15:34,942 INFO L? ?]: Removed 1609 outVars from TransFormulas that were not future-live. [2024-11-09 06:15:34,943 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:15:37,049 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:15:37,049 INFO L316 CfgBuilder]: Removed 9 assume(true) statements. [2024-11-09 06:15:37,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:15:37 BoogieIcfgContainer [2024-11-09 06:15:37,050 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:15:37,055 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:15:37,056 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:15:37,060 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:15:37,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:14:48" (1/3) ... [2024-11-09 06:15:37,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30e7e82c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:15:37, skipping insertion in model container [2024-11-09 06:15:37,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:14:52" (2/3) ... [2024-11-09 06:15:37,064 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30e7e82c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:15:37, skipping insertion in model container [2024-11-09 06:15:37,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:15:37" (3/3) ... [2024-11-09 06:15:37,066 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i [2024-11-09 06:15:37,093 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:15:37,093 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-09 06:15:37,258 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:15:37,270 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;@6152f4a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:15:37,271 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-09 06:15:37,285 INFO L276 IsEmpty]: Start isEmpty. Operand has 1269 states, 777 states have (on average 1.308880308880309) internal successors, (1017), 786 states have internal predecessors, (1017), 418 states have call successors, (418), 73 states have call predecessors, (418), 72 states have return successors, (412), 411 states have call predecessors, (412), 412 states have call successors, (412) [2024-11-09 06:15:37,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-09 06:15:37,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:15:37,326 INFO L215 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:15:37,327 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:15:37,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:15:37,338 INFO L85 PathProgramCache]: Analyzing trace with hash 396677387, now seen corresponding path program 1 times [2024-11-09 06:15:37,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:15:37,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415718422] [2024-11-09 06:15:37,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:15:37,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:17:24,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:17:26,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2024-11-09 06:17:26,903 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:17:26,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415718422] [2024-11-09 06:17:26,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415718422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:17:26,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:17:26,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:17:26,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967231047] [2024-11-09 06:17:26,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:17:26,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:17:26,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:17:26,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:17:26,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:17:26,959 INFO L87 Difference]: Start difference. First operand has 1269 states, 777 states have (on average 1.308880308880309) internal successors, (1017), 786 states have internal predecessors, (1017), 418 states have call successors, (418), 73 states have call predecessors, (418), 72 states have return successors, (412), 411 states have call predecessors, (412), 412 states have call successors, (412) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-09 06:17:29,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:17:31,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:17:35,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:17:37,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:17:39,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:17:42,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:17:42,699 INFO L93 Difference]: Finished difference Result 3617 states and 5374 transitions. [2024-11-09 06:17:42,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:17:42,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 208 [2024-11-09 06:17:42,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:17:42,761 INFO L225 Difference]: With dead ends: 3617 [2024-11-09 06:17:42,761 INFO L226 Difference]: Without dead ends: 2372 [2024-11-09 06:17:42,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:17:42,789 INFO L432 NwaCegarLoop]: 1634 mSDtfsCounter, 1618 mSDsluCounter, 1602 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 12 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 3236 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:17:42,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1618 Valid, 3236 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 428 Invalid, 3 Unknown, 0 Unchecked, 15.4s Time] [2024-11-09 06:17:42,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2372 states. [2024-11-09 06:17:43,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2372 to 2352. [2024-11-09 06:17:43,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2352 states, 1453 states have (on average 1.3000688231245698) internal successors, (1889), 1477 states have internal predecessors, (1889), 755 states have call successors, (755), 142 states have call predecessors, (755), 141 states have return successors, (751), 744 states have call predecessors, (751), 751 states have call successors, (751) [2024-11-09 06:17:43,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2352 states to 2352 states and 3395 transitions. [2024-11-09 06:17:43,161 INFO L78 Accepts]: Start accepts. Automaton has 2352 states and 3395 transitions. Word has length 208 [2024-11-09 06:17:43,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:17:43,165 INFO L471 AbstractCegarLoop]: Abstraction has 2352 states and 3395 transitions. [2024-11-09 06:17:43,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-09 06:17:43,166 INFO L276 IsEmpty]: Start isEmpty. Operand 2352 states and 3395 transitions. [2024-11-09 06:17:43,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-09 06:17:43,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:17:43,179 INFO L215 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:17:43,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:17:43,180 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:17:43,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:17:43,182 INFO L85 PathProgramCache]: Analyzing trace with hash -702667455, now seen corresponding path program 1 times [2024-11-09 06:17:43,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:17:43,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667311911] [2024-11-09 06:17:43,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:17:43,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:19:37,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:19:38,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2024-11-09 06:19:38,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:19:38,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667311911] [2024-11-09 06:19:38,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667311911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:19:38,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:19:38,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:19:38,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906417355] [2024-11-09 06:19:38,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:19:38,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:19:38,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:19:38,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:19:38,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:19:38,706 INFO L87 Difference]: Start difference. First operand 2352 states and 3395 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-09 06:19:40,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:19:43,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:19:48,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:19:51,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:19:53,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:19:55,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:19:55,550 INFO L93 Difference]: Finished difference Result 6704 states and 9654 transitions. [2024-11-09 06:19:55,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:19:55,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 209 [2024-11-09 06:19:55,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:19:55,591 INFO L225 Difference]: With dead ends: 6704 [2024-11-09 06:19:55,592 INFO L226 Difference]: Without dead ends: 4391 [2024-11-09 06:19:55,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:19:55,607 INFO L432 NwaCegarLoop]: 1764 mSDtfsCounter, 1583 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1583 SdHoareTripleChecker+Valid, 3349 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:19:55,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1583 Valid, 3349 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 452 Invalid, 2 Unknown, 0 Unchecked, 16.5s Time] [2024-11-09 06:19:55,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4391 states. [2024-11-09 06:19:55,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4391 to 4371. [2024-11-09 06:19:55,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4371 states, 2714 states have (on average 1.2977155490051584) internal successors, (3522), 2762 states have internal predecessors, (3522), 1380 states have call successors, (1380), 275 states have call predecessors, (1380), 274 states have return successors, (1376), 1357 states have call predecessors, (1376), 1376 states have call successors, (1376) [2024-11-09 06:19:55,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4371 states to 4371 states and 6278 transitions. [2024-11-09 06:19:55,926 INFO L78 Accepts]: Start accepts. Automaton has 4371 states and 6278 transitions. Word has length 209 [2024-11-09 06:19:55,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:19:55,928 INFO L471 AbstractCegarLoop]: Abstraction has 4371 states and 6278 transitions. [2024-11-09 06:19:55,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-09 06:19:55,929 INFO L276 IsEmpty]: Start isEmpty. Operand 4371 states and 6278 transitions. [2024-11-09 06:19:55,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-09 06:19:55,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:19:55,937 INFO L215 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 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] [2024-11-09 06:19:55,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:19:55,938 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:19:55,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:19:55,944 INFO L85 PathProgramCache]: Analyzing trace with hash -2051591717, now seen corresponding path program 1 times [2024-11-09 06:19:55,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:19:55,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131464709] [2024-11-09 06:19:55,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:19:55,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:21:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:21:49,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1409 trivial. 0 not checked. [2024-11-09 06:21:50,000 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:21:50,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131464709] [2024-11-09 06:21:50,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131464709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:21:50,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:21:50,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:21:50,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002656951] [2024-11-09 06:21:50,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:21:50,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:21:50,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:21:50,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:21:50,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:21:50,006 INFO L87 Difference]: Start difference. First operand 4371 states and 6278 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-09 06:21:52,228 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 [] [2024-11-09 06:21:54,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:21:58,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:22:02,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:22:03,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:22:04,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:22:04,995 INFO L93 Difference]: Finished difference Result 9624 states and 13780 transitions. [2024-11-09 06:22:04,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:22:04,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 214 [2024-11-09 06:22:04,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:22:05,038 INFO L225 Difference]: With dead ends: 9624 [2024-11-09 06:22:05,039 INFO L226 Difference]: Without dead ends: 5292 [2024-11-09 06:22:05,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:22:05,061 INFO L432 NwaCegarLoop]: 1617 mSDtfsCounter, 1272 mSDsluCounter, 1573 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1272 SdHoareTripleChecker+Valid, 3190 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:22:05,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1272 Valid, 3190 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 420 Invalid, 2 Unknown, 0 Unchecked, 14.8s Time] [2024-11-09 06:22:05,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5292 states. [2024-11-09 06:22:05,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5292 to 5288. [2024-11-09 06:22:05,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5288 states, 3294 states have (on average 1.293564055859138) internal successors, (4261), 3349 states have internal predecessors, (4261), 1646 states have call successors, (1646), 346 states have call predecessors, (1646), 345 states have return successors, (1642), 1622 states have call predecessors, (1642), 1642 states have call successors, (1642) [2024-11-09 06:22:05,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5288 states to 5288 states and 7549 transitions. [2024-11-09 06:22:05,399 INFO L78 Accepts]: Start accepts. Automaton has 5288 states and 7549 transitions. Word has length 214 [2024-11-09 06:22:05,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:22:05,402 INFO L471 AbstractCegarLoop]: Abstraction has 5288 states and 7549 transitions. [2024-11-09 06:22:05,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-09 06:22:05,402 INFO L276 IsEmpty]: Start isEmpty. Operand 5288 states and 7549 transitions. [2024-11-09 06:22:05,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-09 06:22:05,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:22:05,408 INFO L215 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:22:05,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:22:05,409 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:22:05,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:22:05,410 INFO L85 PathProgramCache]: Analyzing trace with hash -879720, now seen corresponding path program 1 times [2024-11-09 06:22:05,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:22:05,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477257210] [2024-11-09 06:22:05,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:22:05,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:23:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:23:57,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2024-11-09 06:23:57,468 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:23:57,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477257210] [2024-11-09 06:23:57,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477257210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:23:57,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:23:57,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:23:57,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075976766] [2024-11-09 06:23:57,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:23:57,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:23:57,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:23:57,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:23:57,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:23:57,471 INFO L87 Difference]: Start difference. First operand 5288 states and 7549 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-09 06:23:59,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:24:01,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:24:04,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:24:08,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:24:11,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:24:11,545 INFO L93 Difference]: Finished difference Result 14620 states and 20863 transitions. [2024-11-09 06:24:11,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:24:11,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 213 [2024-11-09 06:24:11,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:24:11,613 INFO L225 Difference]: With dead ends: 14620 [2024-11-09 06:24:11,614 INFO L226 Difference]: Without dead ends: 9371 [2024-11-09 06:24:11,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:24:11,637 INFO L432 NwaCegarLoop]: 1619 mSDtfsCounter, 1650 mSDsluCounter, 1593 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1650 SdHoareTripleChecker+Valid, 3212 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:24:11,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1650 Valid, 3212 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 418 Invalid, 3 Unknown, 0 Unchecked, 13.8s Time] [2024-11-09 06:24:11,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9371 states. [2024-11-09 06:24:12,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9371 to 9345. [2024-11-09 06:24:12,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9345 states, 5819 states have (on average 1.2936930744114108) internal successors, (7528), 5928 states have internal predecessors, (7528), 2898 states have call successors, (2898), 626 states have call predecessors, (2898), 625 states have return successors, (2894), 2844 states have call predecessors, (2894), 2894 states have call successors, (2894) [2024-11-09 06:24:12,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9345 states to 9345 states and 13320 transitions. [2024-11-09 06:24:12,351 INFO L78 Accepts]: Start accepts. Automaton has 9345 states and 13320 transitions. Word has length 213 [2024-11-09 06:24:12,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:24:12,355 INFO L471 AbstractCegarLoop]: Abstraction has 9345 states and 13320 transitions. [2024-11-09 06:24:12,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-09 06:24:12,356 INFO L276 IsEmpty]: Start isEmpty. Operand 9345 states and 13320 transitions. [2024-11-09 06:24:12,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-09 06:24:12,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:24:12,364 INFO L215 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:24:12,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:24:12,364 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:24:12,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:24:12,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1702398198, now seen corresponding path program 1 times [2024-11-09 06:24:12,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:24:12,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172916482] [2024-11-09 06:24:12,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:24:12,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:25:51,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:25:52,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2024-11-09 06:25:52,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:25:52,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172916482] [2024-11-09 06:25:52,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172916482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:25:52,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:25:52,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:25:52,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326551842] [2024-11-09 06:25:52,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:25:52,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:25:52,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:25:52,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:25:52,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:25:52,331 INFO L87 Difference]: Start difference. First operand 9345 states and 13320 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-09 06:25:54,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:25:56,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:26:01,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:26:03,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:26:06,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:26:06,416 INFO L93 Difference]: Finished difference Result 26611 states and 37863 transitions. [2024-11-09 06:26:06,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:26:06,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 214 [2024-11-09 06:26:06,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:26:06,531 INFO L225 Difference]: With dead ends: 26611 [2024-11-09 06:26:06,531 INFO L226 Difference]: Without dead ends: 17305 [2024-11-09 06:26:06,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:26:06,576 INFO L432 NwaCegarLoop]: 1776 mSDtfsCounter, 1642 mSDsluCounter, 1593 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1642 SdHoareTripleChecker+Valid, 3369 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:26:06,577 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1642 Valid, 3369 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 436 Invalid, 3 Unknown, 0 Unchecked, 13.6s Time] [2024-11-09 06:26:06,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17305 states. [2024-11-09 06:26:07,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17305 to 17279. [2024-11-09 06:26:07,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17279 states, 10719 states have (on average 1.2875268215318594) internal successors, (13801), 10936 states have internal predecessors, (13801), 5366 states have call successors, (5366), 1192 states have call predecessors, (5366), 1191 states have return successors, (5362), 5252 states have call predecessors, (5362), 5362 states have call successors, (5362) [2024-11-09 06:26:07,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17279 states to 17279 states and 24529 transitions. [2024-11-09 06:26:07,880 INFO L78 Accepts]: Start accepts. Automaton has 17279 states and 24529 transitions. Word has length 214 [2024-11-09 06:26:07,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:26:07,881 INFO L471 AbstractCegarLoop]: Abstraction has 17279 states and 24529 transitions. [2024-11-09 06:26:07,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-09 06:26:07,883 INFO L276 IsEmpty]: Start isEmpty. Operand 17279 states and 24529 transitions. [2024-11-09 06:26:07,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-09 06:26:07,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:26:07,887 INFO L215 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:26:07,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:26:07,887 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:26:07,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:26:07,888 INFO L85 PathProgramCache]: Analyzing trace with hash -554717052, now seen corresponding path program 1 times [2024-11-09 06:26:07,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:26:07,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159407540] [2024-11-09 06:26:07,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:26:07,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:27:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:27:57,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2024-11-09 06:27:57,075 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:27:57,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159407540] [2024-11-09 06:27:57,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159407540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:27:57,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:27:57,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:27:57,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46862760] [2024-11-09 06:27:57,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:27:57,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:27:57,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:27:57,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:27:57,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:27:57,081 INFO L87 Difference]: Start difference. First operand 17279 states and 24529 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-09 06:27:59,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:28:01,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:28:08,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:28:09,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:28:11,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:28:11,994 INFO L93 Difference]: Finished difference Result 42226 states and 59753 transitions. [2024-11-09 06:28:11,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:28:11,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 219 [2024-11-09 06:28:11,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:28:12,287 INFO L225 Difference]: With dead ends: 42226 [2024-11-09 06:28:12,287 INFO L226 Difference]: Without dead ends: 24986 [2024-11-09 06:28:12,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:28:12,350 INFO L432 NwaCegarLoop]: 1635 mSDtfsCounter, 941 mSDsluCounter, 1581 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 16 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 3216 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:28:12,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 3216 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 443 Invalid, 3 Unknown, 0 Unchecked, 14.2s Time] [2024-11-09 06:28:12,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24986 states. [2024-11-09 06:28:13,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24986 to 24934. [2024-11-09 06:28:13,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24934 states, 15629 states have (on average 1.2837673555569775) internal successors, (20064), 15976 states have internal predecessors, (20064), 7491 states have call successors, (7491), 1812 states have call predecessors, (7491), 1811 states have return successors, (7487), 7247 states have call predecessors, (7487), 7487 states have call successors, (7487) [2024-11-09 06:28:13,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24934 states to 24934 states and 35042 transitions. [2024-11-09 06:28:13,968 INFO L78 Accepts]: Start accepts. Automaton has 24934 states and 35042 transitions. Word has length 219 [2024-11-09 06:28:13,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:28:13,970 INFO L471 AbstractCegarLoop]: Abstraction has 24934 states and 35042 transitions. [2024-11-09 06:28:13,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-09 06:28:13,971 INFO L276 IsEmpty]: Start isEmpty. Operand 24934 states and 35042 transitions. [2024-11-09 06:28:13,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-11-09 06:28:13,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:28:13,976 INFO L215 NwaCegarLoop]: trace histogram [21, 19, 19, 19, 19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:28:13,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 06:28:13,976 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:28:13,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:28:13,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1186316394, now seen corresponding path program 1 times [2024-11-09 06:28:13,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:28:13,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916085735] [2024-11-09 06:28:13,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:28:13,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms