./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 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4e004d-d561-4be1-8732-5c1b39704285/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4e004d-d561-4be1-8732-5c1b39704285/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4e004d-d561-4be1-8732-5c1b39704285/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4e004d-d561-4be1-8732-5c1b39704285/bin/utaipan-verify-SwPr7d2a91/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_ea4e004d-d561-4be1-8732-5c1b39704285/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4e004d-d561-4be1-8732-5c1b39704285/bin/utaipan-verify-SwPr7d2a91 --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 22e4387c36ff25592bf6c6537ff8412eacb18bdab6752c222fa8ef2a1ca9dbb8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:05:46,898 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:05:47,006 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4e004d-d561-4be1-8732-5c1b39704285/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-25 00:05:47,016 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:05:47,017 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:05:47,059 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:05:47,060 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:05:47,061 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:05:47,062 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:05:47,067 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:05:47,067 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:05:47,068 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:05:47,068 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:05:47,070 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:05:47,070 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:05:47,071 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:05:47,071 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:05:47,072 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:05:47,072 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:05:47,073 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:05:47,074 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:05:47,075 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:05:47,076 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:05:47,077 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:05:47,077 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:05:47,078 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:05:47,078 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:05:47,078 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:05:47,079 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:05:47,079 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:05:47,081 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:05:47,081 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:05:47,081 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:05:47,081 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:05:47,082 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:05:47,082 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:05:47,082 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:05:47,083 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:05:47,083 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:05:47,083 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:05:47,083 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:05:47,084 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:05:47,084 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:05:47,084 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:05:47,085 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_ea4e004d-d561-4be1-8732-5c1b39704285/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4e004d-d561-4be1-8732-5c1b39704285/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22e4387c36ff25592bf6c6537ff8412eacb18bdab6752c222fa8ef2a1ca9dbb8 [2023-11-25 00:05:47,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:05:47,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:05:47,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:05:47,433 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:05:47,434 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:05:47,435 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4e004d-d561-4be1-8732-5c1b39704285/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i [2023-11-25 00:05:50,544 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:05:51,291 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:05:51,292 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4e004d-d561-4be1-8732-5c1b39704285/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i [2023-11-25 00:05:51,332 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4e004d-d561-4be1-8732-5c1b39704285/bin/utaipan-verify-SwPr7d2a91/data/9a566e535/f6d34d2e171a4664b3a08b20cddc0728/FLAG68133e8e5 [2023-11-25 00:05:51,347 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4e004d-d561-4be1-8732-5c1b39704285/bin/utaipan-verify-SwPr7d2a91/data/9a566e535/f6d34d2e171a4664b3a08b20cddc0728 [2023-11-25 00:05:51,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:05:51,352 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:05:51,353 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:05:51,354 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:05:51,364 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:05:51,365 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:05:51" (1/1) ... [2023-11-25 00:05:51,366 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6840ef39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:51, skipping insertion in model container [2023-11-25 00:05:51,366 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:05:51" (1/1) ... [2023-11-25 00:05:51,522 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:05:54,229 WARN L240 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_ea4e004d-d561-4be1-8732-5c1b39704285/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284136,284149] [2023-11-25 00:05:54,234 WARN L240 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_ea4e004d-d561-4be1-8732-5c1b39704285/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284302,284315] [2023-11-25 00:05:54,234 WARN L240 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_ea4e004d-d561-4be1-8732-5c1b39704285/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284466,284479] [2023-11-25 00:05:54,235 WARN L240 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_ea4e004d-d561-4be1-8732-5c1b39704285/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284631,284644] [2023-11-25 00:05:54,261 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:05:54,318 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:05:54,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3861] [2023-11-25 00:05:54,428 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3916] [2023-11-25 00:05:54,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3919] [2023-11-25 00:05:54,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3922] [2023-11-25 00:05:54,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3925] [2023-11-25 00:05:54,469 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4628] [2023-11-25 00:05:54,469 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4634] [2023-11-25 00:05:54,476 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] [2023-11-25 00:05:54,476 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] [2023-11-25 00:05:54,477 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] [2023-11-25 00:05:54,477 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] [2023-11-25 00:05:54,511 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [5506] [2023-11-25 00:05:54,750 WARN L240 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_ea4e004d-d561-4be1-8732-5c1b39704285/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284136,284149] [2023-11-25 00:05:54,750 WARN L240 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_ea4e004d-d561-4be1-8732-5c1b39704285/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284302,284315] [2023-11-25 00:05:54,751 WARN L240 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_ea4e004d-d561-4be1-8732-5c1b39704285/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284466,284479] [2023-11-25 00:05:54,752 WARN L240 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_ea4e004d-d561-4be1-8732-5c1b39704285/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284631,284644] [2023-11-25 00:05:54,756 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:05:54,939 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:05:54,939 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:05:54,949 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:05:54,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:54 WrapperNode [2023-11-25 00:05:54,950 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:05:54,951 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:05:54,951 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:05:54,952 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:05:54,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:54" (1/1) ... [2023-11-25 00:05:55,061 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:54" (1/1) ... [2023-11-25 00:05:55,291 INFO L138 Inliner]: procedures = 343, calls = 2934, calls flagged for inlining = 190, calls inlined = 160, statements flattened = 5221 [2023-11-25 00:05:55,292 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:05:55,293 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:05:55,293 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:05:55,293 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:05:55,304 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:54" (1/1) ... [2023-11-25 00:05:55,304 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:54" (1/1) ... [2023-11-25 00:05:55,325 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:54" (1/1) ... [2023-11-25 00:05:55,326 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:54" (1/1) ... [2023-11-25 00:05:55,507 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:54" (1/1) ... [2023-11-25 00:05:55,527 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:54" (1/1) ... [2023-11-25 00:05:55,570 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:54" (1/1) ... [2023-11-25 00:05:55,591 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:54" (1/1) ... [2023-11-25 00:05:55,620 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:05:55,621 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:05:55,621 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:05:55,621 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:05:55,622 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:54" (1/1) ... [2023-11-25 00:05:55,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:05:55,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4e004d-d561-4be1-8732-5c1b39704285/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:05:55,660 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4e004d-d561-4be1-8732-5c1b39704285/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:05:55,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea4e004d-d561-4be1-8732-5c1b39704285/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:05:55,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-25 00:05:55,700 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-25 00:05:55,700 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-25 00:05:55,700 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-25 00:05:55,701 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-11-25 00:05:55,701 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-11-25 00:05:55,701 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-25 00:05:55,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-25 00:05:55,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-25 00:05:55,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-25 00:05:55,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-25 00:05:55,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-25 00:05:55,702 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-25 00:05:55,703 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2023-11-25 00:05:55,703 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2023-11-25 00:05:55,703 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-25 00:05:55,703 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-25 00:05:55,703 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2023-11-25 00:05:55,704 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2023-11-25 00:05:55,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-25 00:05:55,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-25 00:05:55,704 INFO L130 BoogieDeclarations]: Found specification of procedure send_packet [2023-11-25 00:05:55,704 INFO L138 BoogieDeclarations]: Found implementation of procedure send_packet [2023-11-25 00:05:55,705 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2023-11-25 00:05:55,705 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2023-11-25 00:05:55,705 INFO L130 BoogieDeclarations]: Found specification of procedure imon_disconnect [2023-11-25 00:05:55,705 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_disconnect [2023-11-25 00:05:55,705 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2023-11-25 00:05:55,706 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2023-11-25 00:05:55,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_imon_context [2023-11-25 00:05:55,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_imon_context [2023-11-25 00:05:55,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_5_4 [2023-11-25 00:05:55,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_5_4 [2023-11-25 00:05:55,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2023-11-25 00:05:55,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2023-11-25 00:05:55,707 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-25 00:05:55,707 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-25 00:05:55,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_driver_lock [2023-11-25 00:05:55,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_driver_lock [2023-11-25 00:05:55,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:05:55,708 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2023-11-25 00:05:55,708 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2023-11-25 00:05:55,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-25 00:05:55,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-25 00:05:55,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-25 00:05:55,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-25 00:05:55,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-25 00:05:55,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-11-25 00:05:55,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-11-25 00:05:55,710 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2023-11-25 00:05:55,710 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2023-11-25 00:05:55,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:05:55,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-25 00:05:55,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_imon_driver_exit_11_2 [2023-11-25 00:05:55,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_imon_driver_exit_11_2 [2023-11-25 00:05:55,711 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-25 00:05:55,711 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-25 00:05:55,712 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-25 00:05:55,712 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-25 00:05:55,712 INFO L130 BoogieDeclarations]: Found specification of procedure imon_resume [2023-11-25 00:05:55,712 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_resume [2023-11-25 00:05:55,712 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-25 00:05:55,713 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-25 00:05:55,713 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-25 00:05:55,713 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-25 00:05:55,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-25 00:05:55,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-25 00:05:55,714 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2023-11-25 00:05:55,714 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2023-11-25 00:05:55,714 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2023-11-25 00:05:55,714 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2023-11-25 00:05:55,714 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-11-25 00:05:55,715 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-11-25 00:05:55,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-25 00:05:55,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-25 00:05:55,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-25 00:05:55,715 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-25 00:05:55,716 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-25 00:05:55,716 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2023-11-25 00:05:55,716 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2023-11-25 00:05:55,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-25 00:05:55,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-25 00:05:55,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-25 00:05:55,717 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-25 00:05:55,717 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-25 00:05:55,717 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2023-11-25 00:05:55,717 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2023-11-25 00:05:55,718 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2023-11-25 00:05:55,718 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2023-11-25 00:05:55,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-25 00:05:55,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-25 00:05:55,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-25 00:05:55,719 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2023-11-25 00:05:55,719 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2023-11-25 00:05:55,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-25 00:05:55,719 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-25 00:05:55,719 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-25 00:05:55,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-25 00:05:55,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-25 00:05:55,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-25 00:05:55,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-25 00:05:55,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-25 00:05:55,721 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-25 00:05:55,721 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-25 00:05:55,721 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2023-11-25 00:05:55,721 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2023-11-25 00:05:55,722 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-25 00:05:55,722 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-25 00:05:55,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-25 00:05:55,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-25 00:05:55,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-25 00:05:55,723 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2023-11-25 00:05:55,723 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2023-11-25 00:05:55,723 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-25 00:05:55,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-25 00:05:55,724 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2023-11-25 00:05:55,724 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2023-11-25 00:05:55,724 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2023-11-25 00:05:55,724 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2023-11-25 00:05:55,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-25 00:05:55,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-25 00:05:55,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-25 00:05:55,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-25 00:05:55,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-25 00:05:55,726 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2023-11-25 00:05:55,726 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2023-11-25 00:05:55,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_imon_context [2023-11-25 00:05:55,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_imon_context [2023-11-25 00:05:55,726 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-25 00:05:55,727 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-25 00:05:55,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:05:55,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-25 00:05:55,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-25 00:05:55,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-25 00:05:55,728 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2023-11-25 00:05:55,728 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2023-11-25 00:05:55,728 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-25 00:05:55,728 INFO L130 BoogieDeclarations]: Found specification of procedure display_close [2023-11-25 00:05:55,729 INFO L138 BoogieDeclarations]: Found implementation of procedure display_close [2023-11-25 00:05:55,729 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2023-11-25 00:05:55,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2023-11-25 00:05:55,729 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-25 00:05:55,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-25 00:05:55,730 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2023-11-25 00:05:55,730 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2023-11-25 00:05:55,730 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-25 00:05:55,730 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-25 00:05:55,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-25 00:05:55,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-25 00:05:55,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_driver_lock [2023-11-25 00:05:55,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_driver_lock [2023-11-25 00:05:55,731 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2023-11-25 00:05:55,732 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2023-11-25 00:05:55,732 INFO L130 BoogieDeclarations]: Found specification of procedure imon_find_endpoints [2023-11-25 00:05:55,732 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_find_endpoints [2023-11-25 00:05:55,732 INFO L130 BoogieDeclarations]: Found specification of procedure display_open [2023-11-25 00:05:55,732 INFO L138 BoogieDeclarations]: Found implementation of procedure display_open [2023-11-25 00:05:55,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:05:55,733 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-11-25 00:05:55,733 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-11-25 00:05:55,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-25 00:05:55,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-25 00:05:55,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:05:55,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:05:56,418 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:05:56,423 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:05:56,698 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-25 00:06:19,820 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-25 00:06:19,957 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:06:20,973 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:06:20,973 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-25 00:06:20,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:06:20 BoogieIcfgContainer [2023-11-25 00:06:20,976 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:06:20,978 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:06:20,978 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:06:20,982 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:06:20,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:05:51" (1/3) ... [2023-11-25 00:06:20,983 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2470cc08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:06:20, skipping insertion in model container [2023-11-25 00:06:20,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:54" (2/3) ... [2023-11-25 00:06:20,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2470cc08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:06:20, skipping insertion in model container [2023-11-25 00:06:20,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:06:20" (3/3) ... [2023-11-25 00:06:20,985 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i [2023-11-25 00:06:21,006 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:06:21,006 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-25 00:06:21,086 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:06:21,093 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@7d985ed6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:06:21,093 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-25 00:06:21,104 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) [2023-11-25 00:06:21,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-11-25 00:06:21,135 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:06:21,135 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:06:21,136 INFO L420 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)] === [2023-11-25 00:06:21,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:06:21,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1516866364, now seen corresponding path program 1 times [2023-11-25 00:06:21,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:06:21,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15486518] [2023-11-25 00:06:21,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:06:21,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:06:21,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:06:22,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2023-11-25 00:06:22,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:06:22,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15486518] [2023-11-25 00:06:22,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15486518] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:06:22,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:06:22,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:06:22,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687113275] [2023-11-25 00:06:22,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:06:22,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:06:22,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:06:22,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:06:22,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:06:22,433 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) [2023-11-25 00:06:25,604 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 [] [2023-11-25 00:06:26,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:06:28,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:06:30,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:06:31,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:06:31,750 INFO L93 Difference]: Finished difference Result 3617 states and 5374 transitions. [2023-11-25 00:06:31,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:06:31,753 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 [2023-11-25 00:06:31,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:06:31,788 INFO L225 Difference]: With dead ends: 3617 [2023-11-25 00:06:31,789 INFO L226 Difference]: Without dead ends: 2372 [2023-11-25 00:06:31,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:06:31,811 INFO L413 NwaCegarLoop]: 1633 mSDtfsCounter, 1618 mSDsluCounter, 1601 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 3234 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2023-11-25 00:06:31,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1618 Valid, 3234 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 433 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2023-11-25 00:06:31,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2372 states. [2023-11-25 00:06:32,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2372 to 2352. [2023-11-25 00:06:32,127 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) [2023-11-25 00:06:32,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2352 states to 2352 states and 3395 transitions. [2023-11-25 00:06:32,158 INFO L78 Accepts]: Start accepts. Automaton has 2352 states and 3395 transitions. Word has length 208 [2023-11-25 00:06:32,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:06:32,162 INFO L495 AbstractCegarLoop]: Abstraction has 2352 states and 3395 transitions. [2023-11-25 00:06:32,162 INFO L496 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) [2023-11-25 00:06:32,162 INFO L276 IsEmpty]: Start isEmpty. Operand 2352 states and 3395 transitions. [2023-11-25 00:06:32,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-11-25 00:06:32,180 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:06:32,180 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:06:32,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:06:32,181 INFO L420 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)] === [2023-11-25 00:06:32,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:06:32,182 INFO L85 PathProgramCache]: Analyzing trace with hash -252926909, now seen corresponding path program 1 times [2023-11-25 00:06:32,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:06:32,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871859641] [2023-11-25 00:06:32,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:06:32,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:06:32,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:06:32,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2023-11-25 00:06:32,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:06:32,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871859641] [2023-11-25 00:06:32,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871859641] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:06:32,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:06:32,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:06:32,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21946314] [2023-11-25 00:06:32,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:06:32,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:06:32,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:06:32,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:06:32,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:06:32,882 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) [2023-11-25 00:06:36,009 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 [] [2023-11-25 00:06:37,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:06:39,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:06:40,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:06:41,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:06:41,471 INFO L93 Difference]: Finished difference Result 6704 states and 9654 transitions. [2023-11-25 00:06:41,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:06:41,473 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 [2023-11-25 00:06:41,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:06:41,511 INFO L225 Difference]: With dead ends: 6704 [2023-11-25 00:06:41,511 INFO L226 Difference]: Without dead ends: 4391 [2023-11-25 00:06:41,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:06:41,538 INFO L413 NwaCegarLoop]: 1747 mSDtfsCounter, 1583 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1583 SdHoareTripleChecker+Valid, 3331 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-11-25 00:06:41,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1583 Valid, 3331 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 452 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2023-11-25 00:06:41,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4391 states. [2023-11-25 00:06:41,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4391 to 4371. [2023-11-25 00:06:41,852 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) [2023-11-25 00:06:41,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4371 states to 4371 states and 6278 transitions. [2023-11-25 00:06:41,899 INFO L78 Accepts]: Start accepts. Automaton has 4371 states and 6278 transitions. Word has length 209 [2023-11-25 00:06:41,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:06:41,902 INFO L495 AbstractCegarLoop]: Abstraction has 4371 states and 6278 transitions. [2023-11-25 00:06:41,903 INFO L496 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) [2023-11-25 00:06:41,903 INFO L276 IsEmpty]: Start isEmpty. Operand 4371 states and 6278 transitions. [2023-11-25 00:06:41,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-11-25 00:06:41,908 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:06:41,909 INFO L195 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, 1] [2023-11-25 00:06:41,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-25 00:06:41,909 INFO L420 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)] === [2023-11-25 00:06:41,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:06:41,911 INFO L85 PathProgramCache]: Analyzing trace with hash 201128009, now seen corresponding path program 1 times [2023-11-25 00:06:41,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:06:41,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032207056] [2023-11-25 00:06:41,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:06:41,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:06:42,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:06:42,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1409 trivial. 0 not checked. [2023-11-25 00:06:42,514 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:06:42,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032207056] [2023-11-25 00:06:42,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032207056] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:06:42,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:06:42,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:06:42,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390494756] [2023-11-25 00:06:42,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:06:42,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:06:42,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:06:42,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:06:42,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:06:42,519 INFO L87 Difference]: Start difference. First operand 4371 states and 6278 transitions. 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, (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)