./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8761f099-2f0f-4f8e-a2fb-5b3f6b1124f5/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8761f099-2f0f-4f8e-a2fb-5b3f6b1124f5/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8761f099-2f0f-4f8e-a2fb-5b3f6b1124f5/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8761f099-2f0f-4f8e-a2fb-5b3f6b1124f5/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8761f099-2f0f-4f8e-a2fb-5b3f6b1124f5/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8761f099-2f0f-4f8e-a2fb-5b3f6b1124f5/bin/uautomizer-verify-84ZbGMXZE1 --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 737f509bd25a9e06ce0273f44396be18568d5a5ccd53141342830e40e0488456 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:23:41,874 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:23:41,929 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8761f099-2f0f-4f8e-a2fb-5b3f6b1124f5/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 12:23:41,934 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:23:41,934 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:23:41,954 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:23:41,955 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:23:41,955 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:23:41,955 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:23:41,956 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:23:41,956 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:23:41,956 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:23:41,956 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:23:41,956 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:23:41,956 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:23:41,956 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:23:41,956 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:23:41,957 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 12:23:41,957 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:23:41,957 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:23:41,957 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:23:41,957 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:23:41,957 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:23:41,957 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:23:41,957 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:23:41,957 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:23:41,957 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:23:41,957 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:23:41,957 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:23:41,958 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:23:41,958 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:23:41,958 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:23:41,958 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:23:41,958 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:23:41,958 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:23:41,958 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:23:41,958 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:23:41,958 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:23:41,958 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:23:41,958 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 12:23:41,958 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 12:23:41,959 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:23:41,959 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:23:41,959 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:23:41,959 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:23:41,959 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_8761f099-2f0f-4f8e-a2fb-5b3f6b1124f5/bin/uautomizer-verify-84ZbGMXZE1 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 -> Automizer 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 -> 737f509bd25a9e06ce0273f44396be18568d5a5ccd53141342830e40e0488456 [2024-12-02 12:23:42,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:23:42,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:23:42,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:23:42,209 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:23:42,209 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:23:42,210 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8761f099-2f0f-4f8e-a2fb-5b3f6b1124f5/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i [2024-12-02 12:23:44,824 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8761f099-2f0f-4f8e-a2fb-5b3f6b1124f5/bin/uautomizer-verify-84ZbGMXZE1/data/a6c3deba6/9fc1fc5a73d74c5fb8dda8cca87c0dd7/FLAGec9d3f505 [2024-12-02 12:23:45,253 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:23:45,253 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8761f099-2f0f-4f8e-a2fb-5b3f6b1124f5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i [2024-12-02 12:23:45,287 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8761f099-2f0f-4f8e-a2fb-5b3f6b1124f5/bin/uautomizer-verify-84ZbGMXZE1/data/a6c3deba6/9fc1fc5a73d74c5fb8dda8cca87c0dd7/FLAGec9d3f505 [2024-12-02 12:23:45,301 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8761f099-2f0f-4f8e-a2fb-5b3f6b1124f5/bin/uautomizer-verify-84ZbGMXZE1/data/a6c3deba6/9fc1fc5a73d74c5fb8dda8cca87c0dd7 [2024-12-02 12:23:45,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:23:45,305 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:23:45,306 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:23:45,306 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:23:45,310 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:23:45,311 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:23:45" (1/1) ... [2024-12-02 12:23:45,312 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@319e6e48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:23:45, skipping insertion in model container [2024-12-02 12:23:45,312 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:23:45" (1/1) ... [2024-12-02 12:23:45,395 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:23:46,890 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8761f099-2f0f-4f8e-a2fb-5b3f6b1124f5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292189,292202] [2024-12-02 12:23:46,893 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8761f099-2f0f-4f8e-a2fb-5b3f6b1124f5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292358,292371] [2024-12-02 12:23:46,893 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8761f099-2f0f-4f8e-a2fb-5b3f6b1124f5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292525,292538] [2024-12-02 12:23:46,894 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8761f099-2f0f-4f8e-a2fb-5b3f6b1124f5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292693,292706] [2024-12-02 12:23:46,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:23:46,916 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:23:47,053 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [6219] [2024-12-02 12:23:47,055 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6222] [2024-12-02 12:23:47,055 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6225] [2024-12-02 12:23:47,055 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6228] [2024-12-02 12:23:47,072 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (tmp___0->state): : "memory", "cc"); [6657-6658] [2024-12-02 12:23:47,072 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (tmp___1->state): : "memory", "cc"); [6664-6665] [2024-12-02 12:23:47,072 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (tmp___2->state): : "memory", "cc"); [6671-6672] [2024-12-02 12:23:47,073 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (tmp___3->state): : "memory", "cc"); [6678-6679] [2024-12-02 12:23:47,073 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret___0), "+m" (tmp___4->state): : "memory", "cc"); [6722-6723] [2024-12-02 12:23:47,074 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret___0), "+m" (tmp___5->state): : "memory", "cc"); [6729-6730] [2024-12-02 12:23:47,074 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret___0), "+m" (tmp___6->state): : "memory", "cc"); [6736-6737] [2024-12-02 12:23:47,074 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret___0), "+m" (tmp___7->state): : "memory", "cc"); [6743-6744] [2024-12-02 12:23:47,174 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8761f099-2f0f-4f8e-a2fb-5b3f6b1124f5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292189,292202] [2024-12-02 12:23:47,174 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8761f099-2f0f-4f8e-a2fb-5b3f6b1124f5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292358,292371] [2024-12-02 12:23:47,175 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8761f099-2f0f-4f8e-a2fb-5b3f6b1124f5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292525,292538] [2024-12-02 12:23:47,175 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8761f099-2f0f-4f8e-a2fb-5b3f6b1124f5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i[292693,292706] [2024-12-02 12:23:47,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:23:47,306 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:23:47,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:23:47 WrapperNode [2024-12-02 12:23:47,307 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:23:47,308 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:23:47,308 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:23:47,308 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:23:47,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:23:47" (1/1) ... [2024-12-02 12:23:47,354 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:23:47" (1/1) ... [2024-12-02 12:23:47,455 INFO L138 Inliner]: procedures = 327, calls = 936, calls flagged for inlining = 153, calls inlined = 140, statements flattened = 2787 [2024-12-02 12:23:47,456 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:23:47,456 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:23:47,457 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:23:47,457 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:23:47,466 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:23:47" (1/1) ... [2024-12-02 12:23:47,466 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:23:47" (1/1) ... [2024-12-02 12:23:47,483 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:23:47" (1/1) ... [2024-12-02 12:23:47,917 INFO L175 MemorySlicer]: Split 272 memory accesses to 11 slices as follows [158, 25, 2, 52, 14, 5, 1, 2, 5, 6, 2]. 58 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [0, 0, 0, 0, 0, 0, 1, 2, 0, 6, 1]. The 123 writes are split as follows [26, 23, 1, 52, 12, 4, 0, 0, 5, 0, 0]. [2024-12-02 12:23:47,918 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:23:47" (1/1) ... [2024-12-02 12:23:47,918 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:23:47" (1/1) ... [2024-12-02 12:23:47,973 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:23:47" (1/1) ... [2024-12-02 12:23:47,977 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:23:47" (1/1) ... [2024-12-02 12:23:47,987 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:23:47" (1/1) ... [2024-12-02 12:23:48,003 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:23:47" (1/1) ... [2024-12-02 12:23:48,012 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:23:47" (1/1) ... [2024-12-02 12:23:48,028 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:23:48,029 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:23:48,029 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:23:48,029 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:23:48,030 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:23:47" (1/1) ... [2024-12-02 12:23:48,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:23:48,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8761f099-2f0f-4f8e-a2fb-5b3f6b1124f5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:23:48,059 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8761f099-2f0f-4f8e-a2fb-5b3f6b1124f5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:23:48,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8761f099-2f0f-4f8e-a2fb-5b3f6b1124f5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:23:48,085 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2024-12-02 12:23:48,086 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2024-12-02 12:23:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2024-12-02 12:23:48,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __xchg_wrong_size [2024-12-02 12:23:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 12:23:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 12:23:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 12:23:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 12:23:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 12:23:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 12:23:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 12:23:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 12:23:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-12-02 12:23:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-12-02 12:23:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-12-02 12:23:48,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-12-02 12:23:48,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-12-02 12:23:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-12-02 12:23:48,087 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-12-02 12:23:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-12-02 12:23:48,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-12-02 12:23:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2024-12-02 12:23:48,087 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2024-12-02 12:23:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_request [2024-12-02 12:23:48,087 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_request [2024-12-02 12:23:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2024-12-02 12:23:48,087 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2024-12-02 12:23:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-12-02 12:23:48,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-12-02 12:23:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_irq_unsubscribe [2024-12-02 12:23:48,087 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_irq_unsubscribe [2024-12-02 12:23:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2024-12-02 12:23:48,087 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2024-12-02 12:23:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~bool~0~TO~int [2024-12-02 12:23:48,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~bool~0~TO~int [2024-12-02 12:23:48,087 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_unlock [2024-12-02 12:23:48,088 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_unlock [2024-12-02 12:23:48,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-12-02 12:23:48,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-12-02 12:23:48,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2024-12-02 12:23:48,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2024-12-02 12:23:48,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 12:23:48,088 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2024-12-02 12:23:48,088 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2024-12-02 12:23:48,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 12:23:48,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 12:23:48,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 12:23:48,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 12:23:48,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 12:23:48,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 12:23:48,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 12:23:48,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 12:23:48,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-02 12:23:48,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-12-02 12:23:48,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-12-02 12:23:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-12-02 12:23:48,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-12-02 12:23:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-12-02 12:23:48,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-12-02 12:23:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_hwbus_priv [2024-12-02 12:23:48,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_hwbus_priv [2024-12-02 12:23:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 12:23:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 12:23:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 12:23:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 12:23:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 12:23:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 12:23:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 12:23:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-12-02 12:23:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-12-02 12:23:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-12-02 12:23:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-12-02 12:23:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-12-02 12:23:48,089 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-12-02 12:23:48,090 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-12-02 12:23:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2024-12-02 12:23:48,090 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2024-12-02 12:23:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2024-12-02 12:23:48,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2024-12-02 12:23:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-12-02 12:23:48,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-12-02 12:23:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2024-12-02 12:23:48,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2024-12-02 12:23:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-12-02 12:23:48,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-12-02 12:23:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_probe [2024-12-02 12:23:48,090 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_probe [2024-12-02 12:23:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 12:23:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 12:23:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 12:23:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 12:23:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 12:23:48,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 12:23:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 12:23:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-02 12:23:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-12-02 12:23:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-12-02 12:23:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-12-02 12:23:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-12-02 12:23:48,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-12-02 12:23:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 12:23:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 12:23:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 12:23:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 12:23:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 12:23:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 12:23:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 12:23:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 12:23:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 12:23:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-12-02 12:23:48,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-12-02 12:23:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_irq_wake [2024-12-02 12:23:48,092 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_irq_wake [2024-12-02 12:23:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2024-12-02 12:23:48,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2024-12-02 12:23:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-12-02 12:23:48,092 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-12-02 12:23:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 12:23:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 12:23:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 12:23:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 12:23:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 12:23:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 12:23:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 12:23:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 12:23:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 12:23:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-12-02 12:23:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-12-02 12:23:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_disconnect [2024-12-02 12:23:48,092 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_disconnect [2024-12-02 12:23:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2024-12-02 12:23:48,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2024-12-02 12:23:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-12-02 12:23:48,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-12-02 12:23:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2024-12-02 12:23:48,093 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2024-12-02 12:23:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_direction_output [2024-12-02 12:23:48,093 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_direction_output [2024-12-02 12:23:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-12-02 12:23:48,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-12-02 12:23:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_off [2024-12-02 12:23:48,093 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_off [2024-12-02 12:23:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 12:23:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2024-12-02 12:23:48,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2024-12-02 12:23:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2024-12-02 12:23:48,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2024-12-02 12:23:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2024-12-02 12:23:48,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2024-12-02 12:23:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:23:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-12-02 12:23:48,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-12-02 12:23:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 12:23:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 12:23:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 12:23:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 12:23:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 12:23:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 12:23:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 12:23:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 12:23:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-12-02 12:23:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-12-02 12:23:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-12-02 12:23:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2024-12-02 12:23:48,094 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2024-12-02 12:23:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-12-02 12:23:48,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-12-02 12:23:48,094 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-12-02 12:23:48,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-12-02 12:23:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2024-12-02 12:23:48,095 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2024-12-02 12:23:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-12-02 12:23:48,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-12-02 12:23:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2024-12-02 12:23:48,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2024-12-02 12:23:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_lock [2024-12-02 12:23:48,095 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_lock [2024-12-02 12:23:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-12-02 12:23:48,095 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-12-02 12:23:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_resume [2024-12-02 12:23:48,095 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_resume [2024-12-02 12:23:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_spi_driver_exit_9_2 [2024-12-02 12:23:48,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_spi_driver_exit_9_2 [2024-12-02 12:23:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure cw1200_spi_pm [2024-12-02 12:23:48,095 INFO L138 BoogieDeclarations]: Found implementation of procedure cw1200_spi_pm [2024-12-02 12:23:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 12:23:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 12:23:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 12:23:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 12:23:48,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 12:23:48,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 12:23:48,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 12:23:48,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 12:23:48,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 12:23:48,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 12:23:48,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 12:23:48,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-12-02 12:23:48,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-12-02 12:23:48,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:23:48,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:23:48,591 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:23:48,593 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:23:48,616 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-12-02 12:24:02,159 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-12-02 12:24:02,819 INFO L? ?]: Removed 1137 outVars from TransFormulas that were not future-live. [2024-12-02 12:24:02,819 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:24:02,844 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:24:02,844 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-02 12:24:02,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:24:02 BoogieIcfgContainer [2024-12-02 12:24:02,845 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:24:02,847 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:24:02,847 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:24:02,851 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:24:02,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:23:45" (1/3) ... [2024-12-02 12:24:02,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24ca35a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:24:02, skipping insertion in model container [2024-12-02 12:24:02,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:23:47" (2/3) ... [2024-12-02 12:24:02,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24ca35a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:24:02, skipping insertion in model container [2024-12-02 12:24:02,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:24:02" (3/3) ... [2024-12-02 12:24:02,854 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i [2024-12-02 12:24:02,864 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:24:02,867 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-cw1200-cw1200_wlan_spi.cil.i that has 54 procedures, 1085 locations, 1 initial locations, 1 loop locations, and 3 error locations. [2024-12-02 12:24:02,932 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:24:02,942 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, 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;@48e618d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:24:02,942 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-12-02 12:24:02,947 INFO L276 IsEmpty]: Start isEmpty. Operand has 1083 states, 774 states have (on average 1.2803617571059431) internal successors, (991), 786 states have internal predecessors, (991), 256 states have call successors, (256), 53 states have call predecessors, (256), 52 states have return successors, (247), 246 states have call predecessors, (247), 247 states have call successors, (247) [2024-12-02 12:24:02,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 12:24:02,963 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:24:02,964 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:24:02,964 INFO L396 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)] === [2024-12-02 12:24:02,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:24:02,968 INFO L85 PathProgramCache]: Analyzing trace with hash 497895914, now seen corresponding path program 1 times [2024-12-02 12:24:02,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:24:02,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159501845] [2024-12-02 12:24:02,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:24:02,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:24:03,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:24:03,613 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2024-12-02 12:24:03,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:24:03,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159501845] [2024-12-02 12:24:03,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159501845] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:24:03,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:24:03,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:24:03,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222107260] [2024-12-02 12:24:03,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:24:03,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:24:03,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:24:03,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:24:03,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:24:03,636 INFO L87 Difference]: Start difference. First operand has 1083 states, 774 states have (on average 1.2803617571059431) internal successors, (991), 786 states have internal predecessors, (991), 256 states have call successors, (256), 53 states have call predecessors, (256), 52 states have return successors, (247), 246 states have call predecessors, (247), 247 states have call successors, (247) Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 12:24:04,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:24:05,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:24:05,313 INFO L93 Difference]: Finished difference Result 2952 states and 4147 transitions. [2024-12-02 12:24:05,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:24:05,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 151 [2024-12-02 12:24:05,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:24:05,337 INFO L225 Difference]: With dead ends: 2952 [2024-12-02 12:24:05,337 INFO L226 Difference]: Without dead ends: 1880 [2024-12-02 12:24:05,345 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:24:05,347 INFO L435 NwaCegarLoop]: 1536 mSDtfsCounter, 1121 mSDsluCounter, 1349 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1121 SdHoareTripleChecker+Valid, 2885 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:24:05,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1121 Valid, 2885 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-12-02 12:24:05,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1880 states. [2024-12-02 12:24:05,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1880 to 1853. [2024-12-02 12:24:05,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1853 states, 1335 states have (on average 1.247940074906367) internal successors, (1666), 1362 states have internal predecessors, (1666), 418 states have call successors, (418), 98 states have call predecessors, (418), 97 states have return successors, (414), 408 states have call predecessors, (414), 414 states have call successors, (414) [2024-12-02 12:24:05,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1853 states to 1853 states and 2498 transitions. [2024-12-02 12:24:05,491 INFO L78 Accepts]: Start accepts. Automaton has 1853 states and 2498 transitions. Word has length 151 [2024-12-02 12:24:05,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:24:05,492 INFO L471 AbstractCegarLoop]: Abstraction has 1853 states and 2498 transitions. [2024-12-02 12:24:05,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 12:24:05,492 INFO L276 IsEmpty]: Start isEmpty. Operand 1853 states and 2498 transitions. [2024-12-02 12:24:05,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 12:24:05,497 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:24:05,497 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:24:05,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 12:24:05,497 INFO L396 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)] === [2024-12-02 12:24:05,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:24:05,498 INFO L85 PathProgramCache]: Analyzing trace with hash 444234944, now seen corresponding path program 1 times [2024-12-02 12:24:05,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:24:05,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084011451] [2024-12-02 12:24:05,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:24:05,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:24:05,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:24:05,804 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2024-12-02 12:24:05,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:24:05,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084011451] [2024-12-02 12:24:05,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084011451] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:24:05,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:24:05,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:24:05,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793563033] [2024-12-02 12:24:05,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:24:05,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:24:05,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:24:05,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:24:05,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:24:05,807 INFO L87 Difference]: Start difference. First operand 1853 states and 2498 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 12:24:09,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:24:10,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:24:10,045 INFO L93 Difference]: Finished difference Result 5358 states and 7217 transitions. [2024-12-02 12:24:10,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:24:10,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 151 [2024-12-02 12:24:10,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:24:10,069 INFO L225 Difference]: With dead ends: 5358 [2024-12-02 12:24:10,069 INFO L226 Difference]: Without dead ends: 3532 [2024-12-02 12:24:10,076 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:24:10,077 INFO L435 NwaCegarLoop]: 1435 mSDtfsCounter, 1279 mSDsluCounter, 1363 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1279 SdHoareTripleChecker+Valid, 2798 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:24:10,077 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1279 Valid, 2798 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 12:24:10,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3532 states. [2024-12-02 12:24:10,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3532 to 3528. [2024-12-02 12:24:10,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3528 states, 2562 states have (on average 1.2478532396565183) internal successors, (3197), 2608 states have internal predecessors, (3197), 772 states have call successors, (772), 192 states have call predecessors, (772), 191 states have return successors, (768), 759 states have call predecessors, (768), 768 states have call successors, (768) [2024-12-02 12:24:10,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3528 states to 3528 states and 4737 transitions. [2024-12-02 12:24:10,272 INFO L78 Accepts]: Start accepts. Automaton has 3528 states and 4737 transitions. Word has length 151 [2024-12-02 12:24:10,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:24:10,273 INFO L471 AbstractCegarLoop]: Abstraction has 3528 states and 4737 transitions. [2024-12-02 12:24:10,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 12:24:10,273 INFO L276 IsEmpty]: Start isEmpty. Operand 3528 states and 4737 transitions. [2024-12-02 12:24:10,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-12-02 12:24:10,276 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:24:10,276 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:24:10,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 12:24:10,276 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 12:24:10,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:24:10,277 INFO L85 PathProgramCache]: Analyzing trace with hash 704418550, now seen corresponding path program 1 times [2024-12-02 12:24:10,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:24:10,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136638121] [2024-12-02 12:24:10,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:24:10,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:24:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:24:10,493 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2024-12-02 12:24:10,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:24:10,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136638121] [2024-12-02 12:24:10,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136638121] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:24:10,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:24:10,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:24:10,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230390658] [2024-12-02 12:24:10,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:24:10,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:24:10,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:24:10,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:24:10,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:24:10,495 INFO L87 Difference]: Start difference. First operand 3528 states and 4737 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 12:24:11,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:24:11,330 INFO L93 Difference]: Finished difference Result 8391 states and 11240 transitions. [2024-12-02 12:24:11,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:24:11,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 157 [2024-12-02 12:24:11,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:24:11,352 INFO L225 Difference]: With dead ends: 8391 [2024-12-02 12:24:11,352 INFO L226 Difference]: Without dead ends: 4890 [2024-12-02 12:24:11,362 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:24:11,362 INFO L435 NwaCegarLoop]: 1437 mSDtfsCounter, 1195 mSDsluCounter, 1381 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 2818 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 12:24:11,363 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1195 Valid, 2818 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 12:24:11,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4890 states. [2024-12-02 12:24:11,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4890 to 4861. [2024-12-02 12:24:11,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4861 states, 3507 states have (on average 1.2375249500998005) internal successors, (4340), 3582 states have internal predecessors, (4340), 1074 states have call successors, (1074), 278 states have call predecessors, (1074), 277 states have return successors, (1070), 1048 states have call predecessors, (1070), 1070 states have call successors, (1070) [2024-12-02 12:24:11,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4861 states to 4861 states and 6484 transitions. [2024-12-02 12:24:11,571 INFO L78 Accepts]: Start accepts. Automaton has 4861 states and 6484 transitions. Word has length 157 [2024-12-02 12:24:11,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:24:11,572 INFO L471 AbstractCegarLoop]: Abstraction has 4861 states and 6484 transitions. [2024-12-02 12:24:11,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 12:24:11,572 INFO L276 IsEmpty]: Start isEmpty. Operand 4861 states and 6484 transitions. [2024-12-02 12:24:11,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 12:24:11,576 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:24:11,576 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:24:11,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 12:24:11,577 INFO L396 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)] === [2024-12-02 12:24:11,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:24:11,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1254314602, now seen corresponding path program 1 times [2024-12-02 12:24:11,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:24:11,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2235270] [2024-12-02 12:24:11,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:24:11,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:24:11,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:24:11,815 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2024-12-02 12:24:11,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:24:11,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2235270] [2024-12-02 12:24:11,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2235270] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:24:11,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:24:11,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:24:11,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174660320] [2024-12-02 12:24:11,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:24:11,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:24:11,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:24:11,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:24:11,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:24:11,817 INFO L87 Difference]: Start difference. First operand 4861 states and 6484 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 12:24:12,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:24:13,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:24:13,211 INFO L93 Difference]: Finished difference Result 14119 states and 19076 transitions. [2024-12-02 12:24:13,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:24:13,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 163 [2024-12-02 12:24:13,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:24:13,267 INFO L225 Difference]: With dead ends: 14119 [2024-12-02 12:24:13,267 INFO L226 Difference]: Without dead ends: 9285 [2024-12-02 12:24:13,287 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:24:13,287 INFO L435 NwaCegarLoop]: 1456 mSDtfsCounter, 1369 mSDsluCounter, 1378 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1369 SdHoareTripleChecker+Valid, 2834 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:24:13,288 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1369 Valid, 2834 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 12:24:13,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9285 states. [2024-12-02 12:24:13,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9285 to 9248. [2024-12-02 12:24:13,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9248 states, 6684 states have (on average 1.2410233393177739) internal successors, (8295), 6844 states have internal predecessors, (8295), 2042 states have call successors, (2042), 532 states have call predecessors, (2042), 519 states have return successors, (2224), 1955 states have call predecessors, (2224), 2038 states have call successors, (2224) [2024-12-02 12:24:13,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9248 states to 9248 states and 12561 transitions. [2024-12-02 12:24:13,760 INFO L78 Accepts]: Start accepts. Automaton has 9248 states and 12561 transitions. Word has length 163 [2024-12-02 12:24:13,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:24:13,761 INFO L471 AbstractCegarLoop]: Abstraction has 9248 states and 12561 transitions. [2024-12-02 12:24:13,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 12:24:13,761 INFO L276 IsEmpty]: Start isEmpty. Operand 9248 states and 12561 transitions. [2024-12-02 12:24:13,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-12-02 12:24:13,765 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:24:13,765 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 11, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:24:13,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 12:24:13,765 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 12:24:13,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:24:13,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1586530598, now seen corresponding path program 1 times [2024-12-02 12:24:13,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:24:13,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959341927] [2024-12-02 12:24:13,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:24:13,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:24:13,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:24:14,063 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked. [2024-12-02 12:24:14,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:24:14,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959341927] [2024-12-02 12:24:14,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959341927] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:24:14,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:24:14,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:24:14,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844274303] [2024-12-02 12:24:14,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:24:14,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:24:14,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:24:14,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:24:14,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:24:14,065 INFO L87 Difference]: Start difference. First operand 9248 states and 12561 transitions. 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 12:24:15,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:24:15,593 INFO L93 Difference]: Finished difference Result 22807 states and 30853 transitions. [2024-12-02 12:24:15,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:24:15,594 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 175 [2024-12-02 12:24:15,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:24:15,686 INFO L225 Difference]: With dead ends: 22807 [2024-12-02 12:24:15,686 INFO L226 Difference]: Without dead ends: 13586 [2024-12-02 12:24:15,729 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:24:15,730 INFO L435 NwaCegarLoop]: 1717 mSDtfsCounter, 1271 mSDsluCounter, 1375 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1271 SdHoareTripleChecker+Valid, 3092 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:24:15,730 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1271 Valid, 3092 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 12:24:15,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13586 states. [2024-12-02 12:24:16,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13586 to 13545. [2024-12-02 12:24:16,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13545 states, 9798 states have (on average 1.2308634415186772) internal successors, (12060), 10058 states have internal predecessors, (12060), 2948 states have call successors, (2948), 815 states have call predecessors, (2948), 796 states have return successors, (3173), 2797 states have call predecessors, (3173), 2944 states have call successors, (3173) [2024-12-02 12:24:16,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13545 states to 13545 states and 18181 transitions. [2024-12-02 12:24:16,505 INFO L78 Accepts]: Start accepts. Automaton has 13545 states and 18181 transitions. Word has length 175 [2024-12-02 12:24:16,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:24:16,506 INFO L471 AbstractCegarLoop]: Abstraction has 13545 states and 18181 transitions. [2024-12-02 12:24:16,506 INFO L472 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 12:24:16,506 INFO L276 IsEmpty]: Start isEmpty. Operand 13545 states and 18181 transitions. [2024-12-02 12:24:16,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-12-02 12:24:16,511 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:24:16,511 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:24:16,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 12:24:16,511 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 12:24:16,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:24:16,511 INFO L85 PathProgramCache]: Analyzing trace with hash -2113638291, now seen corresponding path program 1 times [2024-12-02 12:24:16,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:24:16,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806506931] [2024-12-02 12:24:16,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:24:16,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:24:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:24:16,761 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2024-12-02 12:24:16,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:24:16,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806506931] [2024-12-02 12:24:16,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806506931] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:24:16,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:24:16,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:24:16,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391253951] [2024-12-02 12:24:16,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:24:16,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:24:16,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:24:16,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:24:16,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:24:16,762 INFO L87 Difference]: Start difference. First operand 13545 states and 18181 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-12-02 12:24:18,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:24:18,162 INFO L93 Difference]: Finished difference Result 37494 states and 50480 transitions. [2024-12-02 12:24:18,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:24:18,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 209 [2024-12-02 12:24:18,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:24:18,246 INFO L225 Difference]: With dead ends: 37494 [2024-12-02 12:24:18,246 INFO L226 Difference]: Without dead ends: 24949 [2024-12-02 12:24:18,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:24:18,279 INFO L435 NwaCegarLoop]: 2671 mSDtfsCounter, 1252 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1252 SdHoareTripleChecker+Valid, 4060 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:24:18,280 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1252 Valid, 4060 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 12:24:18,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24949 states. [2024-12-02 12:24:19,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24949 to 24945. [2024-12-02 12:24:19,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24945 states, 18134 states have (on average 1.231167971765744) internal successors, (22326), 18554 states have internal predecessors, (22326), 5344 states have call successors, (5344), 1499 states have call predecessors, (5344), 1464 states have return successors, (5795), 5129 states have call predecessors, (5795), 5340 states have call successors, (5795) [2024-12-02 12:24:19,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24945 states to 24945 states and 33465 transitions. [2024-12-02 12:24:19,397 INFO L78 Accepts]: Start accepts. Automaton has 24945 states and 33465 transitions. Word has length 209 [2024-12-02 12:24:19,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:24:19,397 INFO L471 AbstractCegarLoop]: Abstraction has 24945 states and 33465 transitions. [2024-12-02 12:24:19,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-12-02 12:24:19,398 INFO L276 IsEmpty]: Start isEmpty. Operand 24945 states and 33465 transitions. [2024-12-02 12:24:19,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-12-02 12:24:19,402 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:24:19,402 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:24:19,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 12:24:19,402 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 12:24:19,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:24:19,403 INFO L85 PathProgramCache]: Analyzing trace with hash -190410257, now seen corresponding path program 1 times [2024-12-02 12:24:19,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:24:19,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164624205] [2024-12-02 12:24:19,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:24:19,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:24:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:24:19,946 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2024-12-02 12:24:19,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:24:19,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164624205] [2024-12-02 12:24:19,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164624205] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:24:19,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:24:19,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:24:19,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231226676] [2024-12-02 12:24:19,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:24:19,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:24:19,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:24:19,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:24:19,948 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:24:19,948 INFO L87 Difference]: Start difference. First operand 24945 states and 33465 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 12:24:20,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:24:20,816 INFO L93 Difference]: Finished difference Result 24951 states and 33470 transitions. [2024-12-02 12:24:20,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:24:20,816 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 209 [2024-12-02 12:24:20,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:24:20,950 INFO L225 Difference]: With dead ends: 24951 [2024-12-02 12:24:20,950 INFO L226 Difference]: Without dead ends: 24949 [2024-12-02 12:24:20,967 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:24:20,968 INFO L435 NwaCegarLoop]: 1419 mSDtfsCounter, 1365 mSDsluCounter, 2825 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1366 SdHoareTripleChecker+Valid, 4244 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:24:20,968 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1366 Valid, 4244 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 12:24:20,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24949 states. [2024-12-02 12:24:21,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24949 to 24949. [2024-12-02 12:24:21,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24949 states, 18137 states have (on average 1.2311297347962729) internal successors, (22329), 18557 states have internal predecessors, (22329), 5344 states have call successors, (5344), 1500 states have call predecessors, (5344), 1465 states have return successors, (5795), 5129 states have call predecessors, (5795), 5340 states have call successors, (5795) [2024-12-02 12:24:22,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24949 states to 24949 states and 33468 transitions. [2024-12-02 12:24:22,065 INFO L78 Accepts]: Start accepts. Automaton has 24949 states and 33468 transitions. Word has length 209 [2024-12-02 12:24:22,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:24:22,066 INFO L471 AbstractCegarLoop]: Abstraction has 24949 states and 33468 transitions. [2024-12-02 12:24:22,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 12:24:22,066 INFO L276 IsEmpty]: Start isEmpty. Operand 24949 states and 33468 transitions. [2024-12-02 12:24:22,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-12-02 12:24:22,071 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:24:22,071 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:24:22,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 12:24:22,071 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 12:24:22,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:24:22,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1832737645, now seen corresponding path program 1 times [2024-12-02 12:24:22,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:24:22,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324839517] [2024-12-02 12:24:22,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:24:22,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:24:22,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:24:22,518 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2024-12-02 12:24:22,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:24:22,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324839517] [2024-12-02 12:24:22,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324839517] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:24:22,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:24:22,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:24:22,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280706170] [2024-12-02 12:24:22,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:24:22,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:24:22,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:24:22,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:24:22,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:24:22,519 INFO L87 Difference]: Start difference. First operand 24949 states and 33468 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 12:24:23,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:24:23,213 INFO L93 Difference]: Finished difference Result 24955 states and 33473 transitions. [2024-12-02 12:24:23,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:24:23,213 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 214 [2024-12-02 12:24:23,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:24:23,305 INFO L225 Difference]: With dead ends: 24955 [2024-12-02 12:24:23,305 INFO L226 Difference]: Without dead ends: 24953 [2024-12-02 12:24:23,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:24:23,315 INFO L435 NwaCegarLoop]: 1422 mSDtfsCounter, 1361 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1362 SdHoareTripleChecker+Valid, 4248 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:24:23,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1362 Valid, 4248 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:24:23,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24953 states. [2024-12-02 12:24:24,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24953 to 24953. [2024-12-02 12:24:24,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24953 states, 18140 states have (on average 1.2310915104740905) internal successors, (22332), 18560 states have internal predecessors, (22332), 5344 states have call successors, (5344), 1501 states have call predecessors, (5344), 1466 states have return successors, (5795), 5129 states have call predecessors, (5795), 5340 states have call successors, (5795) [2024-12-02 12:24:24,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24953 states to 24953 states and 33471 transitions. [2024-12-02 12:24:24,404 INFO L78 Accepts]: Start accepts. Automaton has 24953 states and 33471 transitions. Word has length 214 [2024-12-02 12:24:24,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:24:24,405 INFO L471 AbstractCegarLoop]: Abstraction has 24953 states and 33471 transitions. [2024-12-02 12:24:24,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-12-02 12:24:24,405 INFO L276 IsEmpty]: Start isEmpty. Operand 24953 states and 33471 transitions. [2024-12-02 12:24:24,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-12-02 12:24:24,407 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:24:24,407 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:24:24,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 12:24:24,408 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 12:24:24,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:24:24,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1214519185, now seen corresponding path program 1 times [2024-12-02 12:24:24,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:24:24,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336317668] [2024-12-02 12:24:24,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:24:24,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:24:24,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:24:24,819 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2024-12-02 12:24:24,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:24:24,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336317668] [2024-12-02 12:24:24,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336317668] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:24:24,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:24:24,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:24:24,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903246732] [2024-12-02 12:24:24,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:24:24,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:24:24,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:24:24,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:24:24,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:24:24,821 INFO L87 Difference]: Start difference. First operand 24953 states and 33471 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 12:24:25,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:24:25,588 INFO L93 Difference]: Finished difference Result 24959 states and 33476 transitions. [2024-12-02 12:24:25,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:24:25,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 219 [2024-12-02 12:24:25,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:24:25,656 INFO L225 Difference]: With dead ends: 24959 [2024-12-02 12:24:25,656 INFO L226 Difference]: Without dead ends: 24957 [2024-12-02 12:24:25,666 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:24:25,667 INFO L435 NwaCegarLoop]: 1422 mSDtfsCounter, 1360 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 4248 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:24:25,667 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 4248 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:24:25,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24957 states. [2024-12-02 12:24:26,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24957 to 24957. [2024-12-02 12:24:26,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24957 states, 18143 states have (on average 1.2310532987929228) internal successors, (22335), 18563 states have internal predecessors, (22335), 5344 states have call successors, (5344), 1502 states have call predecessors, (5344), 1467 states have return successors, (5795), 5129 states have call predecessors, (5795), 5340 states have call successors, (5795) [2024-12-02 12:24:26,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24957 states to 24957 states and 33474 transitions. [2024-12-02 12:24:26,569 INFO L78 Accepts]: Start accepts. Automaton has 24957 states and 33474 transitions. Word has length 219 [2024-12-02 12:24:26,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:24:26,570 INFO L471 AbstractCegarLoop]: Abstraction has 24957 states and 33474 transitions. [2024-12-02 12:24:26,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-12-02 12:24:26,570 INFO L276 IsEmpty]: Start isEmpty. Operand 24957 states and 33474 transitions. [2024-12-02 12:24:26,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2024-12-02 12:24:26,574 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:24:26,574 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:24:26,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 12:24:26,575 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 12:24:26,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:24:26,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1479106163, now seen corresponding path program 1 times [2024-12-02 12:24:26,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:24:26,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336404020] [2024-12-02 12:24:26,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:24:26,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:24:26,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:24:26,796 INFO L134 CoverageAnalysis]: Checked inductivity of 709 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2024-12-02 12:24:26,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:24:26,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336404020] [2024-12-02 12:24:26,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336404020] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:24:26,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:24:26,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:24:26,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111613229] [2024-12-02 12:24:26,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:24:26,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:24:26,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:24:26,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:24:26,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:24:26,798 INFO L87 Difference]: Start difference. First operand 24957 states and 33474 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-12-02 12:24:27,831 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 [] [2024-12-02 12:24:28,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:24:28,980 INFO L93 Difference]: Finished difference Result 60364 states and 81135 transitions. [2024-12-02 12:24:28,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:24:28,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 235 [2024-12-02 12:24:28,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:24:29,072 INFO L225 Difference]: With dead ends: 60364 [2024-12-02 12:24:29,072 INFO L226 Difference]: Without dead ends: 36407 [2024-12-02 12:24:29,120 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:24:29,120 INFO L435 NwaCegarLoop]: 2672 mSDtfsCounter, 1284 mSDsluCounter, 1391 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1284 SdHoareTripleChecker+Valid, 4063 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:24:29,120 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1284 Valid, 4063 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 12:24:29,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36407 states. [2024-12-02 12:24:30,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36407 to 36373. [2024-12-02 12:24:30,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36373 states, 26495 states have (on average 1.2310624646159654) internal successors, (32617), 27075 states have internal predecessors, (32617), 7740 states have call successors, (7740), 2186 states have call predecessors, (7740), 2135 states have return successors, (8417), 7461 states have call predecessors, (8417), 7736 states have call successors, (8417) [2024-12-02 12:24:30,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36373 states to 36373 states and 48774 transitions. [2024-12-02 12:24:30,417 INFO L78 Accepts]: Start accepts. Automaton has 36373 states and 48774 transitions. Word has length 235 [2024-12-02 12:24:30,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:24:30,417 INFO L471 AbstractCegarLoop]: Abstraction has 36373 states and 48774 transitions. [2024-12-02 12:24:30,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-12-02 12:24:30,418 INFO L276 IsEmpty]: Start isEmpty. Operand 36373 states and 48774 transitions. [2024-12-02 12:24:30,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-12-02 12:24:30,421 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:24:30,421 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:24:30,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 12:24:30,421 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 12:24:30,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:24:30,422 INFO L85 PathProgramCache]: Analyzing trace with hash -690731923, now seen corresponding path program 1 times [2024-12-02 12:24:30,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:24:30,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461009084] [2024-12-02 12:24:30,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:24:30,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:24:30,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:24:30,819 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2024-12-02 12:24:30,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:24:30,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461009084] [2024-12-02 12:24:30,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461009084] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:24:30,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:24:30,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:24:30,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431167] [2024-12-02 12:24:30,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:24:30,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:24:30,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:24:30,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:24:30,824 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:24:30,824 INFO L87 Difference]: Start difference. First operand 36373 states and 48774 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-12-02 12:24:31,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:24:31,814 INFO L93 Difference]: Finished difference Result 36379 states and 48779 transitions. [2024-12-02 12:24:31,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:24:31,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 224 [2024-12-02 12:24:31,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:24:31,907 INFO L225 Difference]: With dead ends: 36379 [2024-12-02 12:24:31,908 INFO L226 Difference]: Without dead ends: 36377 [2024-12-02 12:24:31,918 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:24:31,919 INFO L435 NwaCegarLoop]: 1422 mSDtfsCounter, 1359 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1360 SdHoareTripleChecker+Valid, 4248 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:24:31,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1360 Valid, 4248 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:24:31,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36377 states. [2024-12-02 12:24:33,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36377 to 36377. [2024-12-02 12:24:33,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36377 states, 26498 states have (on average 1.2310363046267643) internal successors, (32620), 27078 states have internal predecessors, (32620), 7740 states have call successors, (7740), 2187 states have call predecessors, (7740), 2136 states have return successors, (8417), 7461 states have call predecessors, (8417), 7736 states have call successors, (8417) [2024-12-02 12:24:33,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36377 states to 36377 states and 48777 transitions. [2024-12-02 12:24:33,262 INFO L78 Accepts]: Start accepts. Automaton has 36377 states and 48777 transitions. Word has length 224 [2024-12-02 12:24:33,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:24:33,263 INFO L471 AbstractCegarLoop]: Abstraction has 36377 states and 48777 transitions. [2024-12-02 12:24:33,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-12-02 12:24:33,263 INFO L276 IsEmpty]: Start isEmpty. Operand 36377 states and 48777 transitions. [2024-12-02 12:24:33,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-12-02 12:24:33,267 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:24:33,267 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:24:33,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 12:24:33,268 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 12:24:33,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:24:33,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1965608687, now seen corresponding path program 1 times [2024-12-02 12:24:33,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:24:33,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285285153] [2024-12-02 12:24:33,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:24:33,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:24:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:24:33,600 INFO L134 CoverageAnalysis]: Checked inductivity of 713 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2024-12-02 12:24:33,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:24:33,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285285153] [2024-12-02 12:24:33,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285285153] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:24:33,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:24:33,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:24:33,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208089955] [2024-12-02 12:24:33,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:24:33,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:24:33,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:24:33,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:24:33,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:24:33,602 INFO L87 Difference]: Start difference. First operand 36377 states and 48777 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-12-02 12:24:34,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:24:34,808 INFO L93 Difference]: Finished difference Result 36383 states and 48782 transitions. [2024-12-02 12:24:34,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:24:34,808 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 229 [2024-12-02 12:24:34,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:24:34,899 INFO L225 Difference]: With dead ends: 36383 [2024-12-02 12:24:34,899 INFO L226 Difference]: Without dead ends: 36381 [2024-12-02 12:24:34,912 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:24:34,912 INFO L435 NwaCegarLoop]: 1422 mSDtfsCounter, 1358 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1359 SdHoareTripleChecker+Valid, 4248 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:24:34,912 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1359 Valid, 4248 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:24:34,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36381 states. [2024-12-02 12:24:36,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36381 to 36381. [2024-12-02 12:24:36,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36381 states, 26501 states have (on average 1.2310101505603561) internal successors, (32623), 27081 states have internal predecessors, (32623), 7740 states have call successors, (7740), 2188 states have call predecessors, (7740), 2137 states have return successors, (8417), 7461 states have call predecessors, (8417), 7736 states have call successors, (8417) [2024-12-02 12:24:36,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36381 states to 36381 states and 48780 transitions. [2024-12-02 12:24:36,537 INFO L78 Accepts]: Start accepts. Automaton has 36381 states and 48780 transitions. Word has length 229 [2024-12-02 12:24:36,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:24:36,538 INFO L471 AbstractCegarLoop]: Abstraction has 36381 states and 48780 transitions. [2024-12-02 12:24:36,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-12-02 12:24:36,538 INFO L276 IsEmpty]: Start isEmpty. Operand 36381 states and 48780 transitions. [2024-12-02 12:24:36,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-12-02 12:24:36,544 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:24:36,544 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:24:36,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 12:24:36,544 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 12:24:36,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:24:36,545 INFO L85 PathProgramCache]: Analyzing trace with hash 101555565, now seen corresponding path program 1 times [2024-12-02 12:24:36,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:24:36,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537800887] [2024-12-02 12:24:36,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:24:36,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:24:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:24:36,895 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 721 trivial. 0 not checked. [2024-12-02 12:24:36,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:24:36,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537800887] [2024-12-02 12:24:36,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537800887] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:24:36,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:24:36,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:24:36,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629230069] [2024-12-02 12:24:36,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:24:36,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:24:36,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:24:36,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:24:36,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:24:36,897 INFO L87 Difference]: Start difference. First operand 36381 states and 48780 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 12:24:38,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:24:38,193 INFO L93 Difference]: Finished difference Result 36387 states and 48785 transitions. [2024-12-02 12:24:38,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:24:38,193 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 234 [2024-12-02 12:24:38,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:24:38,312 INFO L225 Difference]: With dead ends: 36387 [2024-12-02 12:24:38,312 INFO L226 Difference]: Without dead ends: 36385 [2024-12-02 12:24:38,328 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:24:38,329 INFO L435 NwaCegarLoop]: 1422 mSDtfsCounter, 1357 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1358 SdHoareTripleChecker+Valid, 4248 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:24:38,329 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1358 Valid, 4248 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:24:38,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36385 states. [2024-12-02 12:24:39,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36385 to 36385. [2024-12-02 12:24:39,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36385 states, 26504 states have (on average 1.2309840024147298) internal successors, (32626), 27084 states have internal predecessors, (32626), 7740 states have call successors, (7740), 2189 states have call predecessors, (7740), 2138 states have return successors, (8417), 7461 states have call predecessors, (8417), 7736 states have call successors, (8417) [2024-12-02 12:24:39,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36385 states to 36385 states and 48783 transitions. [2024-12-02 12:24:39,794 INFO L78 Accepts]: Start accepts. Automaton has 36385 states and 48783 transitions. Word has length 234 [2024-12-02 12:24:39,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:24:39,795 INFO L471 AbstractCegarLoop]: Abstraction has 36385 states and 48783 transitions. [2024-12-02 12:24:39,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 12:24:39,795 INFO L276 IsEmpty]: Start isEmpty. Operand 36385 states and 48783 transitions. [2024-12-02 12:24:39,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-12-02 12:24:39,798 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:24:39,798 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:24:39,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 12:24:39,798 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 12:24:39,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:24:39,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1055308433, now seen corresponding path program 1 times [2024-12-02 12:24:39,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:24:39,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130610802] [2024-12-02 12:24:39,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:24:39,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:24:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:24:40,123 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2024-12-02 12:24:40,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:24:40,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130610802] [2024-12-02 12:24:40,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130610802] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:24:40,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:24:40,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:24:40,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608748057] [2024-12-02 12:24:40,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:24:40,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:24:40,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:24:40,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:24:40,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:24:40,124 INFO L87 Difference]: Start difference. First operand 36385 states and 48783 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-12-02 12:24:41,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:24:41,695 INFO L93 Difference]: Finished difference Result 36907 states and 49218 transitions. [2024-12-02 12:24:41,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:24:41,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 239 [2024-12-02 12:24:41,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:24:41,867 INFO L225 Difference]: With dead ends: 36907 [2024-12-02 12:24:41,867 INFO L226 Difference]: Without dead ends: 36905 [2024-12-02 12:24:41,887 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:24:41,888 INFO L435 NwaCegarLoop]: 1420 mSDtfsCounter, 1308 mSDsluCounter, 2872 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 4292 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:24:41,888 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1309 Valid, 4292 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:24:41,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36905 states. [2024-12-02 12:24:44,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36905 to 36905. [2024-12-02 12:24:44,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36905 states, 26937 states have (on average 1.227271039833686) internal successors, (33059), 27517 states have internal predecessors, (33059), 7740 states have call successors, (7740), 2276 states have call predecessors, (7740), 2225 states have return successors, (8417), 7461 states have call predecessors, (8417), 7736 states have call successors, (8417) [2024-12-02 12:24:44,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36905 states to 36905 states and 49216 transitions. [2024-12-02 12:24:44,341 INFO L78 Accepts]: Start accepts. Automaton has 36905 states and 49216 transitions. Word has length 239 [2024-12-02 12:24:44,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:24:44,341 INFO L471 AbstractCegarLoop]: Abstraction has 36905 states and 49216 transitions. [2024-12-02 12:24:44,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-12-02 12:24:44,341 INFO L276 IsEmpty]: Start isEmpty. Operand 36905 states and 49216 transitions. [2024-12-02 12:24:44,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2024-12-02 12:24:44,344 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:24:44,344 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 8, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:24:44,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 12:24:44,345 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 12:24:44,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:24:44,345 INFO L85 PathProgramCache]: Analyzing trace with hash -425892243, now seen corresponding path program 1 times [2024-12-02 12:24:44,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:24:44,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349314940] [2024-12-02 12:24:44,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:24:44,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:24:44,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:24:44,664 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 765 trivial. 0 not checked. [2024-12-02 12:24:44,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:24:44,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349314940] [2024-12-02 12:24:44,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349314940] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:24:44,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:24:44,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:24:44,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089401540] [2024-12-02 12:24:44,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:24:44,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:24:44,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:24:44,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:24:44,666 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:24:44,666 INFO L87 Difference]: Start difference. First operand 36905 states and 49216 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-12-02 12:24:45,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:24:45,905 INFO L93 Difference]: Finished difference Result 36911 states and 49221 transitions. [2024-12-02 12:24:45,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:24:45,906 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 244 [2024-12-02 12:24:45,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:24:46,019 INFO L225 Difference]: With dead ends: 36911 [2024-12-02 12:24:46,019 INFO L226 Difference]: Without dead ends: 36909 [2024-12-02 12:24:46,038 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:24:46,039 INFO L435 NwaCegarLoop]: 1422 mSDtfsCounter, 1355 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1356 SdHoareTripleChecker+Valid, 4248 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:24:46,039 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1356 Valid, 4248 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:24:46,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36909 states. [2024-12-02 12:24:47,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36909 to 36909. [2024-12-02 12:24:47,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36909 states, 26940 states have (on average 1.2272457312546399) internal successors, (33062), 27520 states have internal predecessors, (33062), 7740 states have call successors, (7740), 2277 states have call predecessors, (7740), 2226 states have return successors, (8417), 7461 states have call predecessors, (8417), 7736 states have call successors, (8417) [2024-12-02 12:24:47,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36909 states to 36909 states and 49219 transitions. [2024-12-02 12:24:47,554 INFO L78 Accepts]: Start accepts. Automaton has 36909 states and 49219 transitions. Word has length 244 [2024-12-02 12:24:47,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:24:47,554 INFO L471 AbstractCegarLoop]: Abstraction has 36909 states and 49219 transitions. [2024-12-02 12:24:47,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-12-02 12:24:47,554 INFO L276 IsEmpty]: Start isEmpty. Operand 36909 states and 49219 transitions. [2024-12-02 12:24:47,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-12-02 12:24:47,557 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:24:47,557 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 9, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:24:47,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 12:24:47,557 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 12:24:47,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:24:47,558 INFO L85 PathProgramCache]: Analyzing trace with hash -533115921, now seen corresponding path program 1 times [2024-12-02 12:24:47,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:24:47,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484058072] [2024-12-02 12:24:47,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:24:47,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:24:47,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:24:47,772 INFO L134 CoverageAnalysis]: Checked inductivity of 809 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 793 trivial. 0 not checked. [2024-12-02 12:24:47,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:24:47,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484058072] [2024-12-02 12:24:47,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484058072] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:24:47,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:24:47,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:24:47,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148249780] [2024-12-02 12:24:47,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:24:47,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:24:47,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:24:47,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:24:47,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:24:47,773 INFO L87 Difference]: Start difference. First operand 36909 states and 49219 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-12-02 12:24:49,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:24:49,021 INFO L93 Difference]: Finished difference Result 36915 states and 49224 transitions. [2024-12-02 12:24:49,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:24:49,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 249 [2024-12-02 12:24:49,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:24:49,109 INFO L225 Difference]: With dead ends: 36915 [2024-12-02 12:24:49,109 INFO L226 Difference]: Without dead ends: 36913 [2024-12-02 12:24:49,120 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:24:49,121 INFO L435 NwaCegarLoop]: 1422 mSDtfsCounter, 1354 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1355 SdHoareTripleChecker+Valid, 4248 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:24:49,121 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1355 Valid, 4248 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:24:49,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36913 states. [2024-12-02 12:24:50,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36913 to 36913. [2024-12-02 12:24:50,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36913 states, 26943 states have (on average 1.2272204283116208) internal successors, (33065), 27523 states have internal predecessors, (33065), 7740 states have call successors, (7740), 2278 states have call predecessors, (7740), 2227 states have return successors, (8417), 7461 states have call predecessors, (8417), 7736 states have call successors, (8417) [2024-12-02 12:24:50,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36913 states to 36913 states and 49222 transitions. [2024-12-02 12:24:50,618 INFO L78 Accepts]: Start accepts. Automaton has 36913 states and 49222 transitions. Word has length 249 [2024-12-02 12:24:50,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:24:50,619 INFO L471 AbstractCegarLoop]: Abstraction has 36913 states and 49222 transitions. [2024-12-02 12:24:50,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-12-02 12:24:50,619 INFO L276 IsEmpty]: Start isEmpty. Operand 36913 states and 49222 transitions. [2024-12-02 12:24:50,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-12-02 12:24:50,623 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:24:50,623 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 10, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:24:50,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 12:24:50,623 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 12:24:50,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:24:50,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1396154221, now seen corresponding path program 1 times [2024-12-02 12:24:50,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:24:50,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101554070] [2024-12-02 12:24:50,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:24:50,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:24:50,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:24:50,922 INFO L134 CoverageAnalysis]: Checked inductivity of 843 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 825 trivial. 0 not checked. [2024-12-02 12:24:50,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:24:50,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101554070] [2024-12-02 12:24:50,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101554070] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:24:50,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:24:50,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:24:50,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378820635] [2024-12-02 12:24:50,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:24:50,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:24:50,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:24:50,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:24:50,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:24:50,923 INFO L87 Difference]: Start difference. First operand 36913 states and 49222 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-12-02 12:24:52,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:24:52,229 INFO L93 Difference]: Finished difference Result 36919 states and 49227 transitions. [2024-12-02 12:24:52,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:24:52,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 254 [2024-12-02 12:24:52,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:24:52,346 INFO L225 Difference]: With dead ends: 36919 [2024-12-02 12:24:52,346 INFO L226 Difference]: Without dead ends: 36917 [2024-12-02 12:24:52,365 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:24:52,365 INFO L435 NwaCegarLoop]: 1422 mSDtfsCounter, 1353 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1354 SdHoareTripleChecker+Valid, 4248 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:24:52,366 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1354 Valid, 4248 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:24:52,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36917 states. [2024-12-02 12:24:53,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36917 to 36917. [2024-12-02 12:24:53,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36917 states, 26946 states have (on average 1.2271951310027462) internal successors, (33068), 27526 states have internal predecessors, (33068), 7740 states have call successors, (7740), 2279 states have call predecessors, (7740), 2228 states have return successors, (8417), 7461 states have call predecessors, (8417), 7736 states have call successors, (8417) [2024-12-02 12:24:54,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36917 states to 36917 states and 49225 transitions. [2024-12-02 12:24:54,046 INFO L78 Accepts]: Start accepts. Automaton has 36917 states and 49225 transitions. Word has length 254 [2024-12-02 12:24:54,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:24:54,047 INFO L471 AbstractCegarLoop]: Abstraction has 36917 states and 49225 transitions. [2024-12-02 12:24:54,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-12-02 12:24:54,047 INFO L276 IsEmpty]: Start isEmpty. Operand 36917 states and 49225 transitions. [2024-12-02 12:24:54,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-12-02 12:24:54,050 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:24:54,051 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 11, 11, 11, 11, 11, 11, 11, 10, 10, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:24:54,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 12:24:54,051 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 12:24:54,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:24:54,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1417221420, now seen corresponding path program 1 times [2024-12-02 12:24:54,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:24:54,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2983080] [2024-12-02 12:24:54,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:24:54,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:24:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:24:54,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 989 trivial. 0 not checked. [2024-12-02 12:24:54,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:24:54,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2983080] [2024-12-02 12:24:54,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2983080] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:24:54,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:24:54,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:24:54,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110579923] [2024-12-02 12:24:54,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:24:54,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:24:54,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:24:54,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:24:54,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:24:54,210 INFO L87 Difference]: Start difference. First operand 36917 states and 49225 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2024-12-02 12:24:56,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:24:56,660 INFO L93 Difference]: Finished difference Result 84580 states and 112820 transitions. [2024-12-02 12:24:56,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:24:56,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 295 [2024-12-02 12:24:56,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:24:56,813 INFO L225 Difference]: With dead ends: 84580 [2024-12-02 12:24:56,813 INFO L226 Difference]: Without dead ends: 48675 [2024-12-02 12:24:56,898 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:24:56,898 INFO L435 NwaCegarLoop]: 2706 mSDtfsCounter, 1295 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 4095 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:24:56,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1295 Valid, 4095 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 12:24:56,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48675 states. [2024-12-02 12:24:58,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48675 to 48613. [2024-12-02 12:24:59,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48613 states, 35518 states have (on average 1.2271524297539276) internal successors, (43586), 36258 states have internal predecessors, (43586), 10152 states have call successors, (10152), 3007 states have call predecessors, (10152), 2940 states have return successors, (11055), 9809 states have call predecessors, (11055), 10148 states have call successors, (11055) [2024-12-02 12:24:59,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48613 states to 48613 states and 64793 transitions. [2024-12-02 12:24:59,177 INFO L78 Accepts]: Start accepts. Automaton has 48613 states and 64793 transitions. Word has length 295 [2024-12-02 12:24:59,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:24:59,178 INFO L471 AbstractCegarLoop]: Abstraction has 48613 states and 64793 transitions. [2024-12-02 12:24:59,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2024-12-02 12:24:59,178 INFO L276 IsEmpty]: Start isEmpty. Operand 48613 states and 64793 transitions. [2024-12-02 12:24:59,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-12-02 12:24:59,182 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:24:59,182 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 11, 11, 11, 11, 11, 11, 11, 10, 10, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:24:59,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 12:24:59,183 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 12:24:59,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:24:59,183 INFO L85 PathProgramCache]: Analyzing trace with hash -2003497642, now seen corresponding path program 1 times [2024-12-02 12:24:59,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:24:59,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679372439] [2024-12-02 12:24:59,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:24:59,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:24:59,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:24:59,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 989 trivial. 0 not checked. [2024-12-02 12:24:59,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:24:59,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679372439] [2024-12-02 12:24:59,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679372439] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:24:59,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:24:59,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:24:59,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655834049] [2024-12-02 12:24:59,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:24:59,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:24:59,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:24:59,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:24:59,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:24:59,351 INFO L87 Difference]: Start difference. First operand 48613 states and 64793 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2024-12-02 12:25:02,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:25:02,465 INFO L93 Difference]: Finished difference Result 107770 states and 143802 transitions. [2024-12-02 12:25:02,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:25:02,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 295 [2024-12-02 12:25:02,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:25:02,643 INFO L225 Difference]: With dead ends: 107770 [2024-12-02 12:25:02,643 INFO L226 Difference]: Without dead ends: 60169 [2024-12-02 12:25:02,734 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:25:02,734 INFO L435 NwaCegarLoop]: 2672 mSDtfsCounter, 1256 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1256 SdHoareTripleChecker+Valid, 4062 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 12:25:02,735 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1256 Valid, 4062 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 12:25:02,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60169 states. [2024-12-02 12:25:05,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60169 to 60165. [2024-12-02 12:25:05,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60165 states, 43978 states have (on average 1.2273409431988722) internal successors, (53976), 44878 states have internal predecessors, (53976), 12548 states have call successors, (12548), 3719 states have call predecessors, (12548), 3636 states have return successors, (13677), 12141 states have call predecessors, (13677), 12544 states have call successors, (13677) [2024-12-02 12:25:05,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60165 states to 60165 states and 80201 transitions. [2024-12-02 12:25:05,957 INFO L78 Accepts]: Start accepts. Automaton has 60165 states and 80201 transitions. Word has length 295 [2024-12-02 12:25:05,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:25:05,957 INFO L471 AbstractCegarLoop]: Abstraction has 60165 states and 80201 transitions. [2024-12-02 12:25:05,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2024-12-02 12:25:05,958 INFO L276 IsEmpty]: Start isEmpty. Operand 60165 states and 80201 transitions. [2024-12-02 12:25:05,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-12-02 12:25:05,962 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:25:05,962 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 11, 10, 10, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:25:05,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 12:25:05,963 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 12:25:05,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:25:05,963 INFO L85 PathProgramCache]: Analyzing trace with hash -2007702929, now seen corresponding path program 1 times [2024-12-02 12:25:05,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:25:05,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412477520] [2024-12-02 12:25:05,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:25:05,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:25:06,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:25:06,350 INFO L134 CoverageAnalysis]: Checked inductivity of 881 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2024-12-02 12:25:06,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:25:06,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412477520] [2024-12-02 12:25:06,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412477520] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:25:06,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:25:06,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:25:06,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465517115] [2024-12-02 12:25:06,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:25:06,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:25:06,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:25:06,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:25:06,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:25:06,351 INFO L87 Difference]: Start difference. First operand 60165 states and 80201 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-12-02 12:25:08,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:25:08,672 INFO L93 Difference]: Finished difference Result 60171 states and 80206 transitions. [2024-12-02 12:25:08,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:25:08,672 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 259 [2024-12-02 12:25:08,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:25:08,865 INFO L225 Difference]: With dead ends: 60171 [2024-12-02 12:25:08,865 INFO L226 Difference]: Without dead ends: 60167 [2024-12-02 12:25:08,892 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:25:08,892 INFO L435 NwaCegarLoop]: 1422 mSDtfsCounter, 1352 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1353 SdHoareTripleChecker+Valid, 4248 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:25:08,892 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1353 Valid, 4248 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:25:08,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60167 states. [2024-12-02 12:25:11,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60167 to 60167. [2024-12-02 12:25:11,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60167 states, 43980 states have (on average 1.2273078672123692) internal successors, (53977), 44879 states have internal predecessors, (53977), 12548 states have call successors, (12548), 3720 states have call predecessors, (12548), 3636 states have return successors, (13677), 12141 states have call predecessors, (13677), 12544 states have call successors, (13677) [2024-12-02 12:25:11,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60167 states to 60167 states and 80202 transitions. [2024-12-02 12:25:11,848 INFO L78 Accepts]: Start accepts. Automaton has 60167 states and 80202 transitions. Word has length 259 [2024-12-02 12:25:11,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:25:11,848 INFO L471 AbstractCegarLoop]: Abstraction has 60167 states and 80202 transitions. [2024-12-02 12:25:11,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-12-02 12:25:11,848 INFO L276 IsEmpty]: Start isEmpty. Operand 60167 states and 80202 transitions. [2024-12-02 12:25:11,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-12-02 12:25:11,852 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:25:11,852 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 12, 11, 11, 11, 11, 11, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:25:11,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 12:25:11,852 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 12:25:11,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:25:11,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1435519085, now seen corresponding path program 1 times [2024-12-02 12:25:11,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:25:11,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386723748] [2024-12-02 12:25:11,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:25:11,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:25:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:25:12,054 INFO L134 CoverageAnalysis]: Checked inductivity of 923 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2024-12-02 12:25:12,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:25:12,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386723748] [2024-12-02 12:25:12,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386723748] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:25:12,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:25:12,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 12:25:12,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350261825] [2024-12-02 12:25:12,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:25:12,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:25:12,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:25:12,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:25:12,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:25:12,055 INFO L87 Difference]: Start difference. First operand 60167 states and 80202 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 12:25:15,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:25:15,244 INFO L93 Difference]: Finished difference Result 60167 states and 80202 transitions. [2024-12-02 12:25:15,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:25:15,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 264 [2024-12-02 12:25:15,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:25:15,425 INFO L225 Difference]: With dead ends: 60167 [2024-12-02 12:25:15,425 INFO L226 Difference]: Without dead ends: 59416 [2024-12-02 12:25:15,450 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:25:15,451 INFO L435 NwaCegarLoop]: 1420 mSDtfsCounter, 1348 mSDsluCounter, 2824 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1348 SdHoareTripleChecker+Valid, 4244 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:25:15,451 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1348 Valid, 4244 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:25:15,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59416 states. [2024-12-02 12:25:18,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59416 to 47976. [2024-12-02 12:25:18,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47976 states, 35052 states have (on average 1.2274049982882576) internal successors, (43023), 35743 states have internal predecessors, (43023), 10025 states have call successors, (10025), 2963 states have call predecessors, (10025), 2897 states have return successors, (10932), 9731 states have call predecessors, (10932), 10025 states have call successors, (10932) [2024-12-02 12:25:18,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47976 states to 47976 states and 63980 transitions. [2024-12-02 12:25:18,204 INFO L78 Accepts]: Start accepts. Automaton has 47976 states and 63980 transitions. Word has length 264 [2024-12-02 12:25:18,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:25:18,204 INFO L471 AbstractCegarLoop]: Abstraction has 47976 states and 63980 transitions. [2024-12-02 12:25:18,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 12:25:18,204 INFO L276 IsEmpty]: Start isEmpty. Operand 47976 states and 63980 transitions. [2024-12-02 12:25:18,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-12-02 12:25:18,210 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:25:18,210 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 11, 11, 11, 11, 11, 11, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:25:18,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 12:25:18,210 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 12:25:18,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:25:18,211 INFO L85 PathProgramCache]: Analyzing trace with hash 39602786, now seen corresponding path program 1 times [2024-12-02 12:25:18,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:25:18,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76418963] [2024-12-02 12:25:18,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:25:18,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:25:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:25:18,348 INFO L134 CoverageAnalysis]: Checked inductivity of 961 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 935 trivial. 0 not checked. [2024-12-02 12:25:18,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:25:18,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76418963] [2024-12-02 12:25:18,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76418963] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:25:18,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:25:18,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:25:18,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239749941] [2024-12-02 12:25:18,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:25:18,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:25:18,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:25:18,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:25:18,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:25:18,349 INFO L87 Difference]: Start difference. First operand 47976 states and 63980 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-12-02 12:25:20,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:25:24,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:25:24,120 INFO L93 Difference]: Finished difference Result 117328 states and 156540 transitions. [2024-12-02 12:25:24,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:25:24,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 281 [2024-12-02 12:25:24,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:25:24,325 INFO L225 Difference]: With dead ends: 117328 [2024-12-02 12:25:24,325 INFO L226 Difference]: Without dead ends: 70364 [2024-12-02 12:25:24,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:25:24,419 INFO L435 NwaCegarLoop]: 2296 mSDtfsCounter, 1211 mSDsluCounter, 1314 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1211 SdHoareTripleChecker+Valid, 3610 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:25:24,419 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1211 Valid, 3610 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-12-02 12:25:24,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70364 states. [2024-12-02 12:25:28,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70364 to 70344. [2024-12-02 12:25:28,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70344 states, 51436 states have (on average 1.2247258729294657) internal successors, (62995), 52455 states have internal predecessors, (62995), 14617 states have call successors, (14617), 4387 states have call predecessors, (14617), 4289 states have return successors, (15932), 14187 states have call predecessors, (15932), 14617 states have call successors, (15932) [2024-12-02 12:25:28,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70344 states to 70344 states and 93544 transitions. [2024-12-02 12:25:28,666 INFO L78 Accepts]: Start accepts. Automaton has 70344 states and 93544 transitions. Word has length 281 [2024-12-02 12:25:28,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:25:28,666 INFO L471 AbstractCegarLoop]: Abstraction has 70344 states and 93544 transitions. [2024-12-02 12:25:28,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-12-02 12:25:28,667 INFO L276 IsEmpty]: Start isEmpty. Operand 70344 states and 93544 transitions. [2024-12-02 12:25:28,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2024-12-02 12:25:28,673 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:25:28,674 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 11, 11, 11, 11, 11, 11, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:25:28,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 12:25:28,674 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 12:25:28,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:25:28,675 INFO L85 PathProgramCache]: Analyzing trace with hash -126756077, now seen corresponding path program 1 times [2024-12-02 12:25:28,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:25:28,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594769206] [2024-12-02 12:25:28,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:25:28,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:25:28,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:25:28,828 INFO L134 CoverageAnalysis]: Checked inductivity of 979 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 964 trivial. 0 not checked. [2024-12-02 12:25:28,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:25:28,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594769206] [2024-12-02 12:25:28,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594769206] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:25:28,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:25:28,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:25:28,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453387270] [2024-12-02 12:25:28,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:25:28,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:25:28,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:25:28,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:25:28,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:25:28,829 INFO L87 Difference]: Start difference. First operand 70344 states and 93544 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-12-02 12:25:30,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:25:35,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:25:35,379 INFO L93 Difference]: Finished difference Result 170828 states and 227300 transitions. [2024-12-02 12:25:35,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:25:35,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 284 [2024-12-02 12:25:35,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:25:35,718 INFO L225 Difference]: With dead ends: 170828 [2024-12-02 12:25:35,718 INFO L226 Difference]: Without dead ends: 101496 [2024-12-02 12:25:35,867 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:25:35,868 INFO L435 NwaCegarLoop]: 2505 mSDtfsCounter, 1136 mSDsluCounter, 1320 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1136 SdHoareTripleChecker+Valid, 3825 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-12-02 12:25:35,868 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1136 Valid, 3825 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-12-02 12:25:35,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101496 states. [2024-12-02 12:25:40,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101496 to 101468. [2024-12-02 12:25:40,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101468 states, 74052 states have (on average 1.2223707664884136) internal successors, (90519), 75583 states have internal predecessors, (90519), 21169 states have call successors, (21169), 6391 states have call predecessors, (21169), 6245 states have return successors, (23140), 20515 states have call predecessors, (23140), 21169 states have call successors, (23140) [2024-12-02 12:25:41,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101468 states to 101468 states and 134828 transitions. [2024-12-02 12:25:41,320 INFO L78 Accepts]: Start accepts. Automaton has 101468 states and 134828 transitions. Word has length 284 [2024-12-02 12:25:41,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:25:41,320 INFO L471 AbstractCegarLoop]: Abstraction has 101468 states and 134828 transitions. [2024-12-02 12:25:41,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-12-02 12:25:41,320 INFO L276 IsEmpty]: Start isEmpty. Operand 101468 states and 134828 transitions. [2024-12-02 12:25:41,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2024-12-02 12:25:41,329 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:25:41,329 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:25:41,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 12:25:41,329 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 12:25:41,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:25:41,329 INFO L85 PathProgramCache]: Analyzing trace with hash -2119543602, now seen corresponding path program 1 times [2024-12-02 12:25:41,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:25:41,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043150108] [2024-12-02 12:25:41,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:25:41,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:25:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:25:41,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1121 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 1096 trivial. 0 not checked. [2024-12-02 12:25:41,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:25:41,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043150108] [2024-12-02 12:25:41,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043150108] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:25:41,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:25:41,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:25:41,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998350281] [2024-12-02 12:25:41,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:25:41,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:25:41,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:25:41,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:25:41,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:25:41,450 INFO L87 Difference]: Start difference. First operand 101468 states and 134828 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 12:25:49,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:25:49,730 INFO L93 Difference]: Finished difference Result 232980 states and 309628 transitions. [2024-12-02 12:25:49,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:25:49,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 307 [2024-12-02 12:25:49,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:25:50,198 INFO L225 Difference]: With dead ends: 232980 [2024-12-02 12:25:50,198 INFO L226 Difference]: Without dead ends: 132524 [2024-12-02 12:25:50,427 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:25:50,428 INFO L435 NwaCegarLoop]: 2506 mSDtfsCounter, 1134 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 3831 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 12:25:50,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1134 Valid, 3831 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 12:25:50,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132524 states. [2024-12-02 12:25:57,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132524 to 132496. [2024-12-02 12:25:57,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132496 states, 96572 states have (on average 1.22133744770741) internal successors, (117947), 98615 states have internal predecessors, (117947), 27721 states have call successors, (27721), 8395 states have call predecessors, (27721), 8201 states have return successors, (30348), 26843 states have call predecessors, (30348), 27721 states have call successors, (30348) [2024-12-02 12:25:57,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132496 states to 132496 states and 176016 transitions. [2024-12-02 12:25:57,746 INFO L78 Accepts]: Start accepts. Automaton has 132496 states and 176016 transitions. Word has length 307 [2024-12-02 12:25:57,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:25:57,746 INFO L471 AbstractCegarLoop]: Abstraction has 132496 states and 176016 transitions. [2024-12-02 12:25:57,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 12:25:57,747 INFO L276 IsEmpty]: Start isEmpty. Operand 132496 states and 176016 transitions. [2024-12-02 12:25:57,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2024-12-02 12:25:57,758 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:25:57,758 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:25:57,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 12:25:57,758 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 12:25:57,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:25:57,758 INFO L85 PathProgramCache]: Analyzing trace with hash 2103037136, now seen corresponding path program 1 times [2024-12-02 12:25:57,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:25:57,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004713622] [2024-12-02 12:25:57,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:25:57,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:25:57,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:25:57,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1121 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 1096 trivial. 0 not checked. [2024-12-02 12:25:57,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:25:57,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004713622] [2024-12-02 12:25:57,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004713622] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:25:57,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:25:57,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:25:57,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522799283] [2024-12-02 12:25:57,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:25:57,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:25:57,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:25:57,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:25:57,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:25:57,877 INFO L87 Difference]: Start difference. First operand 132496 states and 176016 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 12:26:01,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:26:10,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:26:10,512 INFO L93 Difference]: Finished difference Result 295276 states and 392484 transitions. [2024-12-02 12:26:10,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:26:10,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 307 [2024-12-02 12:26:10,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:26:11,241 INFO L225 Difference]: With dead ends: 295276 [2024-12-02 12:26:11,241 INFO L226 Difference]: Without dead ends: 163792 [2024-12-02 12:26:11,568 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:26:11,569 INFO L435 NwaCegarLoop]: 2505 mSDtfsCounter, 1155 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 3809 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 12:26:11,569 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1155 Valid, 3809 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 45 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 12:26:11,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163792 states. [2024-12-02 12:26:20,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163792 to 163764. [2024-12-02 12:26:20,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163764 states, 119332 states have (on average 1.2202510642577011) internal successors, (145615), 121887 states have internal predecessors, (145615), 34273 states have call successors, (34273), 10399 states have call predecessors, (34273), 10157 states have return successors, (37556), 33171 states have call predecessors, (37556), 34273 states have call successors, (37556) [2024-12-02 12:26:20,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163764 states to 163764 states and 217444 transitions. [2024-12-02 12:26:21,061 INFO L78 Accepts]: Start accepts. Automaton has 163764 states and 217444 transitions. Word has length 307 [2024-12-02 12:26:21,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:26:21,061 INFO L471 AbstractCegarLoop]: Abstraction has 163764 states and 217444 transitions. [2024-12-02 12:26:21,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-12-02 12:26:21,062 INFO L276 IsEmpty]: Start isEmpty. Operand 163764 states and 217444 transitions. [2024-12-02 12:26:21,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-12-02 12:26:21,074 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:26:21,074 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:26:21,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 12:26:21,074 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 12:26:21,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:26:21,075 INFO L85 PathProgramCache]: Analyzing trace with hash -74924500, now seen corresponding path program 1 times [2024-12-02 12:26:21,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:26:21,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238942071] [2024-12-02 12:26:21,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:26:21,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:26:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:26:21,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1106 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 1063 trivial. 0 not checked. [2024-12-02 12:26:21,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:26:21,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238942071] [2024-12-02 12:26:21,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238942071] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:26:21,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:26:21,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:26:21,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925150294] [2024-12-02 12:26:21,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:26:21,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:26:21,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:26:21,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:26:21,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:26:21,411 INFO L87 Difference]: Start difference. First operand 163764 states and 217444 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-12-02 12:26:34,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:26:34,703 INFO L93 Difference]: Finished difference Result 378796 states and 503044 transitions. [2024-12-02 12:26:34,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:26:34,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 308 [2024-12-02 12:26:34,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:26:35,609 INFO L225 Difference]: With dead ends: 378796 [2024-12-02 12:26:35,609 INFO L226 Difference]: Without dead ends: 216044 [2024-12-02 12:26:36,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:26:36,236 INFO L435 NwaCegarLoop]: 2575 mSDtfsCounter, 1206 mSDsluCounter, 1319 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 3894 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 12:26:36,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1206 Valid, 3894 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 12:26:36,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216044 states. [2024-12-02 12:26:48,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216044 to 216000. [2024-12-02 12:26:48,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216000 states, 157412 states have (on average 1.2188079688969076) internal successors, (191855), 160799 states have internal predecessors, (191855), 45105 states have call successors, (45105), 13803 states have call predecessors, (45105), 13481 states have return successors, (49408), 43651 states have call predecessors, (49408), 45105 states have call successors, (49408) [2024-12-02 12:26:48,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216000 states to 216000 states and 286368 transitions. [2024-12-02 12:26:49,118 INFO L78 Accepts]: Start accepts. Automaton has 216000 states and 286368 transitions. Word has length 308 [2024-12-02 12:26:49,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:26:49,119 INFO L471 AbstractCegarLoop]: Abstraction has 216000 states and 286368 transitions. [2024-12-02 12:26:49,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-12-02 12:26:49,119 INFO L276 IsEmpty]: Start isEmpty. Operand 216000 states and 286368 transitions. [2024-12-02 12:26:49,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-12-02 12:26:49,130 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:26:49,130 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:26:49,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 12:26:49,130 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 12:26:49,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:26:49,131 INFO L85 PathProgramCache]: Analyzing trace with hash -2103510610, now seen corresponding path program 1 times [2024-12-02 12:26:49,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:26:49,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406511404] [2024-12-02 12:26:49,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:26:49,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:26:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:26:49,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1106 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 1063 trivial. 0 not checked. [2024-12-02 12:26:49,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:26:49,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406511404] [2024-12-02 12:26:49,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406511404] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:26:49,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:26:49,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 12:26:49,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578449451] [2024-12-02 12:26:49,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:26:49,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 12:26:49,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:26:49,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 12:26:49,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:26:49,281 INFO L87 Difference]: Start difference. First operand 216000 states and 286368 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-12-02 12:26:51,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:27:05,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:27:05,547 INFO L93 Difference]: Finished difference Result 484228 states and 642552 transitions. [2024-12-02 12:27:05,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 12:27:05,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 308 [2024-12-02 12:27:05,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:27:06,585 INFO L225 Difference]: With dead ends: 484228 [2024-12-02 12:27:06,585 INFO L226 Difference]: Without dead ends: 269240 [2024-12-02 12:27:07,049 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 12:27:07,050 INFO L435 NwaCegarLoop]: 2559 mSDtfsCounter, 1232 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1232 SdHoareTripleChecker+Valid, 3858 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-12-02 12:27:07,050 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1232 Valid, 3858 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-12-02 12:27:07,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269240 states. [2024-12-02 12:27:21,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269240 to 269196. [2024-12-02 12:27:21,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269196 states, 196292 states have (on average 1.2174464573186885) internal successors, (238975), 200511 states have internal predecessors, (238975), 56057 states have call successors, (56057), 17247 states have call predecessors, (56057), 16845 states have return successors, (61440), 54251 states have call predecessors, (61440), 56057 states have call successors, (61440) [2024-12-02 12:27:22,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269196 states to 269196 states and 356472 transitions. [2024-12-02 12:27:22,785 INFO L78 Accepts]: Start accepts. Automaton has 269196 states and 356472 transitions. Word has length 308 [2024-12-02 12:27:22,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:27:22,785 INFO L471 AbstractCegarLoop]: Abstraction has 269196 states and 356472 transitions. [2024-12-02 12:27:22,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-12-02 12:27:22,785 INFO L276 IsEmpty]: Start isEmpty. Operand 269196 states and 356472 transitions. [2024-12-02 12:27:22,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2024-12-02 12:27:22,808 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:27:22,808 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 11, 11, 11, 11, 11, 11, 7, 7, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:27:22,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-02 12:27:22,808 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 12:27:22,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:27:22,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1498913466, now seen corresponding path program 1 times [2024-12-02 12:27:22,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 12:27:22,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157946480] [2024-12-02 12:27:22,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:27:22,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 12:27:22,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:27:22,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1291 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2024-12-02 12:27:22,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 12:27:22,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157946480] [2024-12-02 12:27:22,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157946480] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:27:22,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:27:22,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:27:22,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790070816] [2024-12-02 12:27:22,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:27:22,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 12:27:22,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 12:27:22,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 12:27:22,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:27:22,997 INFO L87 Difference]: Start difference. First operand 269196 states and 356472 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-12-02 12:27:25,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:27:42,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:27:42,844 INFO L93 Difference]: Finished difference Result 588764 states and 779808 transitions. [2024-12-02 12:27:42,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 12:27:42,844 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 335 [2024-12-02 12:27:42,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:27:44,359 INFO L225 Difference]: With dead ends: 588764 [2024-12-02 12:27:44,359 INFO L226 Difference]: Without dead ends: 320580 [2024-12-02 12:27:44,909 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 12:27:44,910 INFO L435 NwaCegarLoop]: 2505 mSDtfsCounter, 1136 mSDsluCounter, 3819 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1136 SdHoareTripleChecker+Valid, 6324 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-12-02 12:27:44,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1136 Valid, 6324 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-12-02 12:27:45,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320580 states.