./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_738036be-8ad0-4540-8b3d-851dfd0f60ec/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738036be-8ad0-4540-8b3d-851dfd0f60ec/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738036be-8ad0-4540-8b3d-851dfd0f60ec/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738036be-8ad0-4540-8b3d-851dfd0f60ec/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738036be-8ad0-4540-8b3d-851dfd0f60ec/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738036be-8ad0-4540-8b3d-851dfd0f60ec/bin/utaipan-verify-NcY6lQBIFX --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 2a992b8f7caf2083ee3b7e2acdd5fd118d6f91728d6dd0ef901811e301ef25da --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:10:27,483 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:10:27,559 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738036be-8ad0-4540-8b3d-851dfd0f60ec/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:10:27,564 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:10:27,565 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:10:27,593 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:10:27,594 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:10:27,594 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:10:27,595 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:10:27,596 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:10:27,596 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:10:27,597 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:10:27,598 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:10:27,598 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:10:27,599 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:10:27,599 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:10:27,600 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:10:27,600 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:10:27,601 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:10:27,602 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:10:27,602 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:10:27,610 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:10:27,610 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:10:27,611 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:10:27,612 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:10:27,612 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:10:27,615 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:10:27,616 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:10:27,616 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:10:27,617 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:10:27,617 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:10:27,618 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:10:27,619 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:10:27,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:27,620 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:10:27,621 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:10:27,622 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:10:27,622 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:10:27,622 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:10:27,622 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:10:27,623 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:10:27,623 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:10:27,623 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_738036be-8ad0-4540-8b3d-851dfd0f60ec/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738036be-8ad0-4540-8b3d-851dfd0f60ec/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a992b8f7caf2083ee3b7e2acdd5fd118d6f91728d6dd0ef901811e301ef25da [2023-11-12 00:10:27,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:10:27,923 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:10:27,926 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:10:27,927 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:10:27,928 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:10:27,929 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738036be-8ad0-4540-8b3d-851dfd0f60ec/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2023-11-12 00:10:31,431 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:10:32,293 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:10:32,295 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738036be-8ad0-4540-8b3d-851dfd0f60ec/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2023-11-12 00:10:32,378 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738036be-8ad0-4540-8b3d-851dfd0f60ec/bin/utaipan-verify-NcY6lQBIFX/data/82fdae0b6/571641878ed642e58cbb98f2a24683c4/FLAGa3f7a9a0f [2023-11-12 00:10:32,401 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738036be-8ad0-4540-8b3d-851dfd0f60ec/bin/utaipan-verify-NcY6lQBIFX/data/82fdae0b6/571641878ed642e58cbb98f2a24683c4 [2023-11-12 00:10:32,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:10:32,413 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:10:32,419 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:32,419 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:10:32,427 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:10:32,431 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:32" (1/1) ... [2023-11-12 00:10:32,433 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ff10e7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:32, skipping insertion in model container [2023-11-12 00:10:32,433 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:32" (1/1) ... [2023-11-12 00:10:32,684 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:10:36,301 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_738036be-8ad0-4540-8b3d-851dfd0f60ec/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2023-11-12 00:10:36,306 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_738036be-8ad0-4540-8b3d-851dfd0f60ec/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375356,375369] [2023-11-12 00:10:36,307 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_738036be-8ad0-4540-8b3d-851dfd0f60ec/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2023-11-12 00:10:36,308 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_738036be-8ad0-4540-8b3d-851dfd0f60ec/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2023-11-12 00:10:36,330 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:36,402 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:10:36,617 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5286] [2023-11-12 00:10:36,621 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5293] [2023-11-12 00:10:36,621 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5300] [2023-11-12 00:10:36,684 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6043] [2023-11-12 00:10:36,715 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6491] [2023-11-12 00:10:36,716 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6514] [2023-11-12 00:10:36,928 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [11140-11141] [2023-11-12 00:10:36,929 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [11172] [2023-11-12 00:10:36,930 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [11175] [2023-11-12 00:10:36,930 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [11178] [2023-11-12 00:10:36,930 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [11181] [2023-11-12 00:10:36,936 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [11260] [2023-11-12 00:10:36,937 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [11268] [2023-11-12 00:10:37,001 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [11323] [2023-11-12 00:10:37,002 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [11330] [2023-11-12 00:10:37,008 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [11494] [2023-11-12 00:10:37,054 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [12171] [2023-11-12 00:10:37,096 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_738036be-8ad0-4540-8b3d-851dfd0f60ec/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375187,375200] [2023-11-12 00:10:37,097 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_738036be-8ad0-4540-8b3d-851dfd0f60ec/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375356,375369] [2023-11-12 00:10:37,098 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_738036be-8ad0-4540-8b3d-851dfd0f60ec/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375523,375536] [2023-11-12 00:10:37,099 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_738036be-8ad0-4540-8b3d-851dfd0f60ec/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i[375691,375704] [2023-11-12 00:10:37,105 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:37,345 WARN L672 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:10:37,345 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:10:37,345 WARN L672 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:10:37,346 WARN L672 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:10:37,355 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:10:37,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:37 WrapperNode [2023-11-12 00:10:37,356 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:37,358 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:10:37,358 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:10:37,358 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:10:37,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:37" (1/1) ... [2023-11-12 00:10:37,521 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:37" (1/1) ... [2023-11-12 00:10:37,756 INFO L138 Inliner]: procedures = 451, calls = 2401, calls flagged for inlining = 232, calls inlined = 219, statements flattened = 6782 [2023-11-12 00:10:37,757 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:10:37,758 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:10:37,759 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:10:37,760 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:10:37,771 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:37" (1/1) ... [2023-11-12 00:10:37,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:37" (1/1) ... [2023-11-12 00:10:37,825 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:37" (1/1) ... [2023-11-12 00:10:37,828 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:37" (1/1) ... [2023-11-12 00:10:38,003 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:37" (1/1) ... [2023-11-12 00:10:38,033 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:37" (1/1) ... [2023-11-12 00:10:38,084 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:37" (1/1) ... [2023-11-12 00:10:38,113 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:37" (1/1) ... [2023-11-12 00:10:38,259 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:10:38,260 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:10:38,260 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:10:38,260 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:10:38,261 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:37" (1/1) ... [2023-11-12 00:10:38,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:38,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738036be-8ad0-4540-8b3d-851dfd0f60ec/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:10:38,299 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738036be-8ad0-4540-8b3d-851dfd0f60ec/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:10:38,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_738036be-8ad0-4540-8b3d-851dfd0f60ec/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:10:38,354 INFO L130 BoogieDeclarations]: Found specification of procedure softing_reset_chip [2023-11-12 00:10:38,355 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_reset_chip [2023-11-12 00:10:38,355 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-12 00:10:38,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_spin_of_softing [2023-11-12 00:10:38,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_spin_of_softing [2023-11-12 00:10:38,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 00:10:38,356 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 00:10:38,356 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-12 00:10:38,357 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-12 00:10:38,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:10:38,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:10:38,358 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-12 00:10:38,358 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-12 00:10:38,358 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2023-11-12 00:10:38,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2023-11-12 00:10:38,358 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2023-11-12 00:10:38,359 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2023-11-12 00:10:38,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-12 00:10:38,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-12 00:10:38,359 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2023-11-12 00:10:38,360 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2023-11-12 00:10:38,360 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-12 00:10:38,360 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-12 00:10:38,360 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2023-11-12 00:10:38,360 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2023-11-12 00:10:38,360 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2023-11-12 00:10:38,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2023-11-12 00:10:38,361 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-12 00:10:38,361 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-12 00:10:38,361 INFO L130 BoogieDeclarations]: Found specification of procedure softing_fct_cmd [2023-11-12 00:10:38,361 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_fct_cmd [2023-11-12 00:10:38,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-12 00:10:38,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-12 00:10:38,362 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-12 00:10:38,362 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-12 00:10:38,362 INFO L130 BoogieDeclarations]: Found specification of procedure canif_is_active [2023-11-12 00:10:38,363 INFO L138 BoogieDeclarations]: Found implementation of procedure canif_is_active [2023-11-12 00:10:38,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 00:10:38,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 00:10:38,364 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2023-11-12 00:10:38,365 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2023-11-12 00:10:38,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:10:38,365 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-12 00:10:38,365 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-12 00:10:38,365 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_open [2023-11-12 00:10:38,365 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_open [2023-11-12 00:10:38,365 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-12 00:10:38,366 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-12 00:10:38,366 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alert [2023-11-12 00:10:38,366 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alert [2023-11-12 00:10:38,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 00:10:38,367 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-12 00:10:38,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-12 00:10:38,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:10:38,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-12 00:10:38,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-12 00:10:38,367 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-12 00:10:38,368 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-12 00:10:38,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:10:38,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 00:10:38,368 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 00:10:38,369 INFO L130 BoogieDeclarations]: Found specification of procedure open_candev [2023-11-12 00:10:38,369 INFO L138 BoogieDeclarations]: Found implementation of procedure open_candev [2023-11-12 00:10:38,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-12 00:10:38,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-12 00:10:38,370 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_rx [2023-11-12 00:10:38,370 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_rx [2023-11-12 00:10:38,370 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-12 00:10:38,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-12 00:10:38,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-12 00:10:38,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-12 00:10:38,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:10:38,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-12 00:10:38,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-12 00:10:38,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-12 00:10:38,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-12 00:10:38,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2023-11-12 00:10:38,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2023-11-12 00:10:38,372 INFO L130 BoogieDeclarations]: Found specification of procedure softing_card_shutdown [2023-11-12 00:10:38,372 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_card_shutdown [2023-11-12 00:10:38,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:10:38,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-12 00:10:38,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-12 00:10:38,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:10:38,373 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-12 00:10:38,373 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-12 00:10:38,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-12 00:10:38,374 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:10:38,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:10:38,374 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_set [2023-11-12 00:10:38,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_set [2023-11-12 00:10:38,375 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_cleanup [2023-11-12 00:10:38,375 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_cleanup [2023-11-12 00:10:38,376 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-12 00:10:38,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-12 00:10:38,376 INFO L130 BoogieDeclarations]: Found specification of procedure softing_startstop [2023-11-12 00:10:38,376 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_startstop [2023-11-12 00:10:38,376 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-12 00:10:38,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-12 00:10:38,376 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_add_us [2023-11-12 00:10:38,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_add_us [2023-11-12 00:10:38,377 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2023-11-12 00:10:38,377 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2023-11-12 00:10:38,377 INFO L130 BoogieDeclarations]: Found specification of procedure softing_bootloader_command [2023-11-12 00:10:38,378 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_bootloader_command [2023-11-12 00:10:38,378 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2023-11-12 00:10:38,378 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2023-11-12 00:10:38,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_62 [2023-11-12 00:10:38,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_62 [2023-11-12 00:10:38,378 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-12 00:10:38,379 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-12 00:10:38,379 INFO L130 BoogieDeclarations]: Found specification of procedure softing_raw2ktime [2023-11-12 00:10:38,379 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_raw2ktime [2023-11-12 00:10:38,379 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2023-11-12 00:10:38,381 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2023-11-12 00:10:38,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:10:38,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:10:38,381 INFO L130 BoogieDeclarations]: Found specification of procedure store_output [2023-11-12 00:10:38,382 INFO L138 BoogieDeclarations]: Found implementation of procedure store_output [2023-11-12 00:10:38,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 00:10:38,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:10:38,383 INFO L130 BoogieDeclarations]: Found specification of procedure softing_pdev_probe [2023-11-12 00:10:38,383 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_pdev_probe [2023-11-12 00:10:38,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 00:10:38,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 00:10:38,387 INFO L130 BoogieDeclarations]: Found specification of procedure softing_netdev_stop [2023-11-12 00:10:38,387 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_netdev_stop [2023-11-12 00:10:38,388 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2023-11-12 00:10:38,389 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2023-11-12 00:10:38,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-12 00:10:38,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-12 00:10:38,390 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-12 00:10:38,397 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-12 00:10:38,397 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2023-11-12 00:10:38,397 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2023-11-12 00:10:38,397 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-12 00:10:38,398 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-12 00:10:38,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 00:10:38,399 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 00:10:38,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_softing_driver_exit_21_2 [2023-11-12 00:10:38,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_softing_driver_exit_21_2 [2023-11-12 00:10:38,399 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-12 00:10:38,399 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-12 00:10:38,399 INFO L130 BoogieDeclarations]: Found specification of procedure softing_set_reset_dpram [2023-11-12 00:10:38,400 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_set_reset_dpram [2023-11-12 00:10:38,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:10:38,400 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-12 00:10:38,400 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-12 00:10:38,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:10:38,400 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-12 00:10:38,400 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-12 00:10:38,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:10:38,401 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-12 00:10:38,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-12 00:10:38,401 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-12 00:10:38,401 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-12 00:10:38,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-12 00:10:38,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-12 00:10:38,402 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2023-11-12 00:10:38,402 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2023-11-12 00:10:38,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-12 00:10:38,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-12 00:10:38,403 INFO L130 BoogieDeclarations]: Found specification of procedure fw_parse [2023-11-12 00:10:38,403 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_parse [2023-11-12 00:10:38,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-12 00:10:38,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-12 00:10:38,403 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2023-11-12 00:10:38,403 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2023-11-12 00:10:38,404 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 00:10:38,404 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 00:10:38,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:10:38,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 00:10:38,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 00:10:38,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_61 [2023-11-12 00:10:38,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_61 [2023-11-12 00:10:38,405 INFO L130 BoogieDeclarations]: Found specification of procedure _softing_fct_cmd [2023-11-12 00:10:38,405 INFO L138 BoogieDeclarations]: Found implementation of procedure _softing_fct_cmd [2023-11-12 00:10:38,405 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2023-11-12 00:10:38,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2023-11-12 00:10:38,405 INFO L130 BoogieDeclarations]: Found specification of procedure softing_error_reporting [2023-11-12 00:10:38,405 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_error_reporting [2023-11-12 00:10:38,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-12 00:10:38,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-12 00:10:38,406 INFO L130 BoogieDeclarations]: Found specification of procedure softing_pdev_remove [2023-11-12 00:10:38,406 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_pdev_remove [2023-11-12 00:10:38,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_spin_of_softing [2023-11-12 00:10:38,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_spin_of_softing [2023-11-12 00:10:38,406 INFO L130 BoogieDeclarations]: Found specification of procedure softing_enable_irq [2023-11-12 00:10:38,406 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_enable_irq [2023-11-12 00:10:38,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:10:38,407 INFO L130 BoogieDeclarations]: Found specification of procedure softing_load_fw [2023-11-12 00:10:38,407 INFO L138 BoogieDeclarations]: Found implementation of procedure softing_load_fw [2023-11-12 00:10:38,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-12 00:10:38,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-12 00:10:39,546 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:10:39,551 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:10:41,261 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 00:10:45,605 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-12 00:10:45,831 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:10:48,737 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:10:48,738 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:10:48,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:10:48 BoogieIcfgContainer [2023-11-12 00:10:48,747 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:10:48,751 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:10:48,751 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:10:48,756 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:10:48,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:10:32" (1/3) ... [2023-11-12 00:10:48,759 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ba0ce43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:10:48, skipping insertion in model container [2023-11-12 00:10:48,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:37" (2/3) ... [2023-11-12 00:10:48,760 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ba0ce43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:10:48, skipping insertion in model container [2023-11-12 00:10:48,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:10:48" (3/3) ... [2023-11-12 00:10:48,762 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-can-softing-softing.cil.i [2023-11-12 00:10:48,792 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:10:48,792 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-12 00:10:48,944 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:10:48,953 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;@2a5605bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:10:48,954 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-12 00:10:48,972 INFO L276 IsEmpty]: Start isEmpty. Operand has 1769 states, 1099 states have (on average 1.3375796178343948) internal successors, (1470), 1113 states have internal predecessors, (1470), 581 states have call successors, (581), 87 states have call predecessors, (581), 86 states have return successors, (573), 573 states have call predecessors, (573), 573 states have call successors, (573) [2023-11-12 00:10:49,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2023-11-12 00:10:49,044 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:49,045 INFO L195 NwaCegarLoop]: trace histogram [40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:49,046 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 00:10:49,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:49,057 INFO L85 PathProgramCache]: Analyzing trace with hash 983957525, now seen corresponding path program 1 times [2023-11-12 00:10:49,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:49,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775670431] [2023-11-12 00:10:49,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:49,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:49,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:50,597 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6006 trivial. 0 not checked. [2023-11-12 00:10:50,597 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:50,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775670431] [2023-11-12 00:10:50,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775670431] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:50,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:50,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:10:50,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185005050] [2023-11-12 00:10:50,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:50,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:10:50,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:50,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:10:50,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:50,656 INFO L87 Difference]: Start difference. First operand has 1769 states, 1099 states have (on average 1.3375796178343948) internal successors, (1470), 1113 states have internal predecessors, (1470), 581 states have call successors, (581), 87 states have call predecessors, (581), 86 states have return successors, (573), 573 states have call predecessors, (573), 573 states have call successors, (573) Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2023-11-12 00:10:53,511 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 [] [2023-11-12 00:10:56,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:10:57,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:57,615 INFO L93 Difference]: Finished difference Result 5023 states and 7614 transitions. [2023-11-12 00:10:57,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:10:57,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 411 [2023-11-12 00:10:57,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:57,675 INFO L225 Difference]: With dead ends: 5023 [2023-11-12 00:10:57,676 INFO L226 Difference]: Without dead ends: 3316 [2023-11-12 00:10:57,694 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 [2023-11-12 00:10:57,697 INFO L413 NwaCegarLoop]: 2329 mSDtfsCounter, 2327 mSDsluCounter, 2292 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2327 SdHoareTripleChecker+Valid, 4621 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:57,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2327 Valid, 4621 Invalid, 659 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 654 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2023-11-12 00:10:57,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3316 states. [2023-11-12 00:10:58,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3316 to 3290. [2023-11-12 00:10:58,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3290 states, 2065 states have (on average 1.3389830508474576) internal successors, (2765), 2093 states have internal predecessors, (2765), 1055 states have call successors, (1055), 168 states have call predecessors, (1055), 167 states have return successors, (1096), 1047 states have call predecessors, (1096), 1051 states have call successors, (1096) [2023-11-12 00:10:58,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3290 states to 3290 states and 4916 transitions. [2023-11-12 00:10:58,111 INFO L78 Accepts]: Start accepts. Automaton has 3290 states and 4916 transitions. Word has length 411 [2023-11-12 00:10:58,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:58,114 INFO L495 AbstractCegarLoop]: Abstraction has 3290 states and 4916 transitions. [2023-11-12 00:10:58,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2023-11-12 00:10:58,115 INFO L276 IsEmpty]: Start isEmpty. Operand 3290 states and 4916 transitions. [2023-11-12 00:10:58,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2023-11-12 00:10:58,126 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:58,126 INFO L195 NwaCegarLoop]: trace histogram [40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:58,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:10:58,127 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 00:10:58,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:58,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1070207353, now seen corresponding path program 1 times [2023-11-12 00:10:58,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:58,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414694267] [2023-11-12 00:10:58,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:58,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:58,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:58,813 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6006 trivial. 0 not checked. [2023-11-12 00:10:58,813 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:58,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414694267] [2023-11-12 00:10:58,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414694267] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:58,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:58,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:10:58,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757582894] [2023-11-12 00:10:58,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:58,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:10:58,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:58,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:10:58,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:58,818 INFO L87 Difference]: Start difference. First operand 3290 states and 4916 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2023-11-12 00:11:02,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:11:04,224 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 [] [2023-11-12 00:11:05,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:05,598 INFO L93 Difference]: Finished difference Result 9625 states and 14381 transitions. [2023-11-12 00:11:05,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:11:05,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 411 [2023-11-12 00:11:05,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:05,658 INFO L225 Difference]: With dead ends: 9625 [2023-11-12 00:11:05,659 INFO L226 Difference]: Without dead ends: 6414 [2023-11-12 00:11:05,678 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 [2023-11-12 00:11:05,680 INFO L413 NwaCegarLoop]: 2286 mSDtfsCounter, 2402 mSDsluCounter, 2244 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2402 SdHoareTripleChecker+Valid, 4530 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:05,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2402 Valid, 4530 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 649 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2023-11-12 00:11:05,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6414 states. [2023-11-12 00:11:06,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6414 to 6410. [2023-11-12 00:11:06,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6410 states, 4054 states have (on average 1.3411445485939812) internal successors, (5437), 4102 states have internal predecessors, (5437), 2022 states have call successors, (2022), 332 states have call predecessors, (2022), 331 states have return successors, (2108), 2013 states have call predecessors, (2108), 2018 states have call successors, (2108) [2023-11-12 00:11:06,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6410 states to 6410 states and 9567 transitions. [2023-11-12 00:11:06,142 INFO L78 Accepts]: Start accepts. Automaton has 6410 states and 9567 transitions. Word has length 411 [2023-11-12 00:11:06,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:06,143 INFO L495 AbstractCegarLoop]: Abstraction has 6410 states and 9567 transitions. [2023-11-12 00:11:06,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2023-11-12 00:11:06,144 INFO L276 IsEmpty]: Start isEmpty. Operand 6410 states and 9567 transitions. [2023-11-12 00:11:06,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2023-11-12 00:11:06,155 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:06,155 INFO L195 NwaCegarLoop]: trace histogram [40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:11:06,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:11:06,156 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 00:11:06,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:06,157 INFO L85 PathProgramCache]: Analyzing trace with hash -686091709, now seen corresponding path program 1 times [2023-11-12 00:11:06,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:11:06,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348682537] [2023-11-12 00:11:06,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:06,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:11:06,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:06,559 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6006 trivial. 0 not checked. [2023-11-12 00:11:06,560 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:11:06,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348682537] [2023-11-12 00:11:06,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348682537] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:11:06,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:11:06,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:11:06,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679160286] [2023-11-12 00:11:06,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:11:06,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:11:06,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:11:06,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:11:06,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:11:06,564 INFO L87 Difference]: Start difference. First operand 6410 states and 9567 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2023-11-12 00:11:08,906 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 [] [2023-11-12 00:11:13,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:11:14,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:14,754 INFO L93 Difference]: Finished difference Result 18756 states and 28285 transitions. [2023-11-12 00:11:14,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:11:14,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 418 [2023-11-12 00:11:14,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:14,894 INFO L225 Difference]: With dead ends: 18756 [2023-11-12 00:11:14,895 INFO L226 Difference]: Without dead ends: 12425 [2023-11-12 00:11:14,943 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 [2023-11-12 00:11:14,945 INFO L413 NwaCegarLoop]: 2284 mSDtfsCounter, 2373 mSDsluCounter, 2251 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2373 SdHoareTripleChecker+Valid, 4535 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:14,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2373 Valid, 4535 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-11-12 00:11:14,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12425 states. [2023-11-12 00:11:15,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12425 to 12392. [2023-11-12 00:11:15,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12392 states, 7838 states have (on average 1.340520540954325) internal successors, (10507), 7940 states have internal predecessors, (10507), 3898 states have call successors, (3898), 658 states have call predecessors, (3898), 653 states have return successors, (4370), 3865 states have call predecessors, (4370), 3894 states have call successors, (4370) [2023-11-12 00:11:15,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12392 states to 12392 states and 18775 transitions. [2023-11-12 00:11:15,901 INFO L78 Accepts]: Start accepts. Automaton has 12392 states and 18775 transitions. Word has length 418 [2023-11-12 00:11:15,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:15,902 INFO L495 AbstractCegarLoop]: Abstraction has 12392 states and 18775 transitions. [2023-11-12 00:11:15,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2023-11-12 00:11:15,920 INFO L276 IsEmpty]: Start isEmpty. Operand 12392 states and 18775 transitions. [2023-11-12 00:11:15,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2023-11-12 00:11:15,932 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:15,932 INFO L195 NwaCegarLoop]: trace histogram [40, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:11:15,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:11:15,933 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 00:11:15,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:15,934 INFO L85 PathProgramCache]: Analyzing trace with hash -761204234, now seen corresponding path program 1 times [2023-11-12 00:11:15,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:11:15,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293833230] [2023-11-12 00:11:15,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:15,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:11:16,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat