./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-ethernet-natsemi-ns83820.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_b639a31a-0c44-4d6a-a9b8-c5b6acfb7ec8/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b639a31a-0c44-4d6a-a9b8-c5b6acfb7ec8/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_b639a31a-0c44-4d6a-a9b8-c5b6acfb7ec8/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b639a31a-0c44-4d6a-a9b8-c5b6acfb7ec8/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-ethernet-natsemi-ns83820.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b639a31a-0c44-4d6a-a9b8-c5b6acfb7ec8/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_b639a31a-0c44-4d6a-a9b8-c5b6acfb7ec8/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 a8ab8b9c7011aec39f84a1ecf826f202398208cb106ea4649e1adfd1ea4d4076 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 15:01:39,131 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 15:01:39,183 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b639a31a-0c44-4d6a-a9b8-c5b6acfb7ec8/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 15:01:39,188 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 15:01:39,188 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 15:01:39,209 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 15:01:39,210 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 15:01:39,210 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 15:01:39,210 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 15:01:39,210 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 15:01:39,211 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 15:01:39,211 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 15:01:39,211 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 15:01:39,211 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 15:01:39,211 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 15:01:39,211 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 15:01:39,212 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 15:01:39,212 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 15:01:39,212 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 15:01:39,212 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 15:01:39,212 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 15:01:39,212 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 15:01:39,212 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 15:01:39,212 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 15:01:39,212 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 15:01:39,212 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 15:01:39,212 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:01:39,213 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:01:39,213 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:01:39,213 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:01:39,213 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 15:01:39,213 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:01:39,213 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:01:39,213 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:01:39,213 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:01:39,213 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 15:01:39,214 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 15:01:39,214 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 15:01:39,214 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 15:01:39,214 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 15:01:39,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 15:01:39,214 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 15:01:39,214 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 15:01:39,214 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 15:01:39,214 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 15:01:39,214 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_b639a31a-0c44-4d6a-a9b8-c5b6acfb7ec8/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 -> a8ab8b9c7011aec39f84a1ecf826f202398208cb106ea4649e1adfd1ea4d4076 [2024-12-02 15:01:39,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 15:01:39,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 15:01:39,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 15:01:39,432 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 15:01:39,432 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 15:01:39,433 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b639a31a-0c44-4d6a-a9b8-c5b6acfb7ec8/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2024-12-02 15:01:42,050 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b639a31a-0c44-4d6a-a9b8-c5b6acfb7ec8/bin/uautomizer-verify-84ZbGMXZE1/data/0bf74c79f/7b788d981eb443b2b3481fbc501d8066/FLAG17ab0f330 [2024-12-02 15:01:42,512 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 15:01:42,512 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b639a31a-0c44-4d6a-a9b8-c5b6acfb7ec8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2024-12-02 15:01:42,547 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b639a31a-0c44-4d6a-a9b8-c5b6acfb7ec8/bin/uautomizer-verify-84ZbGMXZE1/data/0bf74c79f/7b788d981eb443b2b3481fbc501d8066/FLAG17ab0f330 [2024-12-02 15:01:42,633 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b639a31a-0c44-4d6a-a9b8-c5b6acfb7ec8/bin/uautomizer-verify-84ZbGMXZE1/data/0bf74c79f/7b788d981eb443b2b3481fbc501d8066 [2024-12-02 15:01:42,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 15:01:42,636 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 15:01:42,637 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 15:01:42,637 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 15:01:42,640 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 15:01:42,641 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:01:42" (1/1) ... [2024-12-02 15:01:42,642 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@313ff914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:42, skipping insertion in model container [2024-12-02 15:01:42,642 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:01:42" (1/1) ... [2024-12-02 15:01:42,752 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 15:01:44,708 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_b639a31a-0c44-4d6a-a9b8-c5b6acfb7ec8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322443,322456] [2024-12-02 15:01:44,711 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_b639a31a-0c44-4d6a-a9b8-c5b6acfb7ec8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322612,322625] [2024-12-02 15:01:44,711 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_b639a31a-0c44-4d6a-a9b8-c5b6acfb7ec8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322779,322792] [2024-12-02 15:01:44,711 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_b639a31a-0c44-4d6a-a9b8-c5b6acfb7ec8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322947,322960] [2024-12-02 15:01:44,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:01:44,755 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 15:01:44,830 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5259] [2024-12-02 15:01:44,831 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5266] [2024-12-02 15:01:44,831 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5273] [2024-12-02 15:01:44,833 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/f860c18/linux-kernel-locking-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5316-5317] [2024-12-02 15:01:44,833 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [5322-5324] [2024-12-02 15:01:44,834 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; incl %0": "+m" (v->counter)); [5344] [2024-12-02 15:01:44,834 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; decl %0": "+m" (v->counter)); [5351] [2024-12-02 15:01:44,837 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5513] [2024-12-02 15:01:44,837 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5520] [2024-12-02 15:01:44,842 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [5614-5615] [2024-12-02 15:01:44,844 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [5648-5649] [2024-12-02 15:01:44,845 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (79), "i" (12UL)); [5690-5691] [2024-12-02 15:01:44,846 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (91), "i" (12UL)); [5719-5720] [2024-12-02 15:01:44,859 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6297] [2024-12-02 15:01:44,860 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/ethernet/natsemi/ns83820.c"), "i" (538), "i" (12UL)); [6331-6332] [2024-12-02 15:01:44,879 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6765] [2024-12-02 15:01:44,883 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6925] [2024-12-02 15:01:44,923 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)dev->rx_info.next_rx_desc) [7447] [2024-12-02 15:01:45,023 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_b639a31a-0c44-4d6a-a9b8-c5b6acfb7ec8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322443,322456] [2024-12-02 15:01:45,024 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_b639a31a-0c44-4d6a-a9b8-c5b6acfb7ec8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322612,322625] [2024-12-02 15:01:45,025 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_b639a31a-0c44-4d6a-a9b8-c5b6acfb7ec8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322779,322792] [2024-12-02 15:01:45,025 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_b639a31a-0c44-4d6a-a9b8-c5b6acfb7ec8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i[322947,322960] [2024-12-02 15:01:45,037 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:01:45,233 INFO L204 MainTranslator]: Completed translation [2024-12-02 15:01:45,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:45 WrapperNode [2024-12-02 15:01:45,233 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 15:01:45,234 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 15:01:45,234 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 15:01:45,234 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 15:01:45,241 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:45" (1/1) ... [2024-12-02 15:01:45,293 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:45" (1/1) ... [2024-12-02 15:01:45,454 INFO L138 Inliner]: procedures = 460, calls = 1838, calls flagged for inlining = 218, calls inlined = 200, statements flattened = 5090 [2024-12-02 15:01:45,454 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 15:01:45,455 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 15:01:45,455 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 15:01:45,455 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 15:01:45,464 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:45" (1/1) ... [2024-12-02 15:01:45,465 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:45" (1/1) ... [2024-12-02 15:01:45,490 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:45" (1/1) ... [2024-12-02 15:01:46,360 INFO L175 MemorySlicer]: Split 789 memory accesses to 18 slices as follows [8, 26, 1, 5, 5, 648, 5, 2, 3, 8, 6, 8, 1, 2, 2, 54, 3, 2]. 82 percent of accesses are in the largest equivalence class. The 93 initializations are split as follows [8, 26, 0, 5, 5, 21, 5, 0, 3, 8, 0, 8, 1, 2, 0, 0, 1, 0]. The 308 writes are split as follows [0, 0, 0, 0, 0, 258, 0, 1, 0, 0, 5, 0, 0, 0, 1, 42, 0, 1]. [2024-12-02 15:01:46,360 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:45" (1/1) ... [2024-12-02 15:01:46,360 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:45" (1/1) ... [2024-12-02 15:01:46,441 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:45" (1/1) ... [2024-12-02 15:01:46,447 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:45" (1/1) ... [2024-12-02 15:01:46,465 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:45" (1/1) ... [2024-12-02 15:01:46,488 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:45" (1/1) ... [2024-12-02 15:01:46,499 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:45" (1/1) ... [2024-12-02 15:01:46,529 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 15:01:46,530 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 15:01:46,530 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 15:01:46,530 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 15:01:46,531 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:45" (1/1) ... [2024-12-02 15:01:46,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:01:46,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b639a31a-0c44-4d6a-a9b8-c5b6acfb7ec8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:01:46,555 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b639a31a-0c44-4d6a-a9b8-c5b6acfb7ec8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 15:01:46,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b639a31a-0c44-4d6a-a9b8-c5b6acfb7ec8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 15:01:46,579 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_set_multicast [2024-12-02 15:01:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_set_multicast [2024-12-02 15:01:46,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-12-02 15:01:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-12-02 15:01:46,579 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_rx_kick [2024-12-02 15:01:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_rx_kick [2024-12-02 15:01:46,579 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-12-02 15:01:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-12-02 15:01:46,579 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_do_reset [2024-12-02 15:01:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_do_reset [2024-12-02 15:01:46,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_87 [2024-12-02 15:01:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_87 [2024-12-02 15:01:46,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-12-02 15:01:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-12-02 15:01:46,579 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2024-12-02 15:01:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2024-12-02 15:01:46,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-12-02 15:01:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-12-02 15:01:46,580 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2024-12-02 15:01:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2024-12-02 15:01:46,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_62 [2024-12-02 15:01:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_62 [2024-12-02 15:01:46,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_73 [2024-12-02 15:01:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_73 [2024-12-02 15:01:46,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2024-12-02 15:01:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2024-12-02 15:01:46,580 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_remove_one [2024-12-02 15:01:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_remove_one [2024-12-02 15:01:46,580 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-12-02 15:01:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-12-02 15:01:46,580 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_update_stats [2024-12-02 15:01:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_update_stats [2024-12-02 15:01:46,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-12-02 15:01:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-12-02 15:01:46,581 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2024-12-02 15:01:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2024-12-02 15:01:46,581 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2024-12-02 15:01:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2024-12-02 15:01:46,581 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2024-12-02 15:01:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2024-12-02 15:01:46,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-12-02 15:01:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-12-02 15:01:46,581 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-12-02 15:01:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-12-02 15:01:46,581 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2024-12-02 15:01:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2024-12-02 15:01:46,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 15:01:46,581 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2024-12-02 15:01:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2024-12-02 15:01:46,581 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-12-02 15:01:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-12-02 15:01:46,582 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-12-02 15:01:46,582 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-12-02 15:01:46,582 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_tx_timeout [2024-12-02 15:01:46,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_tx_timeout [2024-12-02 15:01:46,582 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2024-12-02 15:01:46,582 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2024-12-02 15:01:46,582 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-12-02 15:01:46,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-12-02 15:01:46,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 15:01:46,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 15:01:46,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 15:01:46,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 15:01:46,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 15:01:46,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 15:01:46,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 15:01:46,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-02 15:01:46,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-12-02 15:01:46,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-12-02 15:01:46,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-12-02 15:01:46,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-12-02 15:01:46,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-12-02 15:01:46,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-12-02 15:01:46,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-12-02 15:01:46,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-12-02 15:01:46,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2024-12-02 15:01:46,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2024-12-02 15:01:46,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-12-02 15:01:46,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-12-02 15:01:46,583 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2024-12-02 15:01:46,583 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2024-12-02 15:01:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 15:01:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 15:01:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 15:01:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 15:01:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 15:01:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 15:01:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 15:01:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 15:01:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 15:01:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-12-02 15:01:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-12-02 15:01:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-12-02 15:01:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-12-02 15:01:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-12-02 15:01:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-12-02 15:01:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-12-02 15:01:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-12-02 15:01:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-12-02 15:01:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2024-12-02 15:01:46,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2024-12-02 15:01:46,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2024-12-02 15:01:46,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2024-12-02 15:01:46,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2024-12-02 15:01:46,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2024-12-02 15:01:46,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2024-12-02 15:01:46,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2024-12-02 15:01:46,585 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2024-12-02 15:01:46,585 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2024-12-02 15:01:46,585 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2024-12-02 15:01:46,585 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2024-12-02 15:01:46,585 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2024-12-02 15:01:46,585 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2024-12-02 15:01:46,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-12-02 15:01:46,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-12-02 15:01:46,585 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_run_bist [2024-12-02 15:01:46,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_run_bist [2024-12-02 15:01:46,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 15:01:46,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2024-12-02 15:01:46,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2024-12-02 15:01:46,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2024-12-02 15:01:46,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2024-12-02 15:01:46,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2024-12-02 15:01:46,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2024-12-02 15:01:46,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 15:01:46,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-12-02 15:01:46,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-12-02 15:01:46,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 15:01:46,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 15:01:46,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 15:01:46,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 15:01:46,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 15:01:46,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 15:01:46,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 15:01:46,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 15:01:46,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-12-02 15:01:46,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-12-02 15:01:46,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-12-02 15:01:46,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-12-02 15:01:46,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-12-02 15:01:46,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-12-02 15:01:46,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-12-02 15:01:46,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-12-02 15:01:46,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-12-02 15:01:46,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-12-02 15:01:46,587 INFO L130 BoogieDeclarations]: Found specification of procedure clear_rx_desc [2024-12-02 15:01:46,587 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_rx_desc [2024-12-02 15:01:46,587 INFO L130 BoogieDeclarations]: Found specification of procedure phy_intr [2024-12-02 15:01:46,587 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_intr [2024-12-02 15:01:46,587 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-12-02 15:01:46,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-12-02 15:01:46,587 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2024-12-02 15:01:46,587 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2024-12-02 15:01:46,587 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-12-02 15:01:46,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-12-02 15:01:46,587 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2024-12-02 15:01:46,587 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2024-12-02 15:01:46,587 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2024-12-02 15:01:46,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2024-12-02 15:01:46,587 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2024-12-02 15:01:46,588 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2024-12-02 15:01:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure do_tx_done [2024-12-02 15:01:46,588 INFO L138 BoogieDeclarations]: Found implementation of procedure do_tx_done [2024-12-02 15:01:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_misc_lock_of_ns83820 [2024-12-02 15:01:46,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_misc_lock_of_ns83820 [2024-12-02 15:01:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-12-02 15:01:46,588 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-12-02 15:01:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2024-12-02 15:01:46,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2024-12-02 15:01:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2024-12-02 15:01:46,588 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2024-12-02 15:01:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2024-12-02 15:01:46,588 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2024-12-02 15:01:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 15:01:46,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 15:01:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_stop [2024-12-02 15:01:46,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_stop [2024-12-02 15:01:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure kick_tx [2024-12-02 15:01:46,588 INFO L138 BoogieDeclarations]: Found implementation of procedure kick_tx [2024-12-02 15:01:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rx_info [2024-12-02 15:01:46,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rx_info [2024-12-02 15:01:46,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 15:01:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 15:01:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 15:01:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 15:01:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 15:01:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 15:01:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 15:01:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 15:01:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-12-02 15:01:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-12-02 15:01:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-12-02 15:01:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-12-02 15:01:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-12-02 15:01:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-12-02 15:01:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-12-02 15:01:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2024-12-02 15:01:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2024-12-02 15:01:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2024-12-02 15:01:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-12-02 15:01:46,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-12-02 15:01:46,589 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2024-12-02 15:01:46,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2024-12-02 15:01:46,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-12-02 15:01:46,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-12-02 15:01:46,590 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2024-12-02 15:01:46,590 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2024-12-02 15:01:46,590 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2024-12-02 15:01:46,590 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2024-12-02 15:01:46,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2024-12-02 15:01:46,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2024-12-02 15:01:46,590 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2024-12-02 15:01:46,590 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2024-12-02 15:01:46,590 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2024-12-02 15:01:46,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2024-12-02 15:01:46,590 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2024-12-02 15:01:46,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2024-12-02 15:01:46,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-12-02 15:01:46,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-12-02 15:01:46,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-12-02 15:01:46,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-12-02 15:01:46,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-12-02 15:01:46,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-12-02 15:01:46,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-12-02 15:01:46,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-12-02 15:01:46,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-12-02 15:01:46,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-12-02 15:01:46,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2024-12-02 15:01:46,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2024-12-02 15:01:46,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#12 [2024-12-02 15:01:46,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#13 [2024-12-02 15:01:46,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#14 [2024-12-02 15:01:46,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#15 [2024-12-02 15:01:46,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#16 [2024-12-02 15:01:46,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#17 [2024-12-02 15:01:46,591 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-12-02 15:01:46,591 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-12-02 15:01:46,591 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-12-02 15:01:46,591 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-12-02 15:01:46,591 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-12-02 15:01:46,591 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-12-02 15:01:46,591 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-12-02 15:01:46,591 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-12-02 15:01:46,591 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-12-02 15:01:46,591 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-12-02 15:01:46,591 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2024-12-02 15:01:46,591 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2024-12-02 15:01:46,591 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#12 [2024-12-02 15:01:46,592 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#13 [2024-12-02 15:01:46,592 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#14 [2024-12-02 15:01:46,592 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#15 [2024-12-02 15:01:46,592 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#16 [2024-12-02 15:01:46,592 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#17 [2024-12-02 15:01:46,592 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-12-02 15:01:46,592 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-12-02 15:01:46,592 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2024-12-02 15:01:46,592 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2024-12-02 15:01:46,592 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2024-12-02 15:01:46,592 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2024-12-02 15:01:46,592 INFO L130 BoogieDeclarations]: Found specification of procedure PRIV [2024-12-02 15:01:46,592 INFO L138 BoogieDeclarations]: Found implementation of procedure PRIV [2024-12-02 15:01:46,592 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2024-12-02 15:01:46,592 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2024-12-02 15:01:46,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 15:01:46,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_72 [2024-12-02 15:01:46,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_72 [2024-12-02 15:01:46,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 15:01:46,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 15:01:46,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 15:01:46,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 15:01:46,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 15:01:46,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 15:01:46,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 15:01:46,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 15:01:46,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-02 15:01:46,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-12-02 15:01:46,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-12-02 15:01:46,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-12-02 15:01:46,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-12-02 15:01:46,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-12-02 15:01:46,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-12-02 15:01:46,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-12-02 15:01:46,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-12-02 15:01:46,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-12-02 15:01:46,593 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-12-02 15:01:46,593 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-12-02 15:01:46,593 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2024-12-02 15:01:46,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2024-12-02 15:01:46,593 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2024-12-02 15:01:46,593 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2024-12-02 15:01:46,593 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2024-12-02 15:01:46,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2024-12-02 15:01:46,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-12-02 15:01:46,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-12-02 15:01:46,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2024-12-02 15:01:46,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2024-12-02 15:01:46,594 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2024-12-02 15:01:46,594 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2024-12-02 15:01:46,594 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-12-02 15:01:46,594 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-12-02 15:01:46,594 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-12-02 15:01:46,594 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-12-02 15:01:46,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_tx_lock_of_ns83820 [2024-12-02 15:01:46,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_tx_lock_of_ns83820 [2024-12-02 15:01:46,594 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2024-12-02 15:01:46,594 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2024-12-02 15:01:46,594 INFO L130 BoogieDeclarations]: Found specification of procedure build_rx_desc [2024-12-02 15:01:46,595 INFO L138 BoogieDeclarations]: Found implementation of procedure build_rx_desc [2024-12-02 15:01:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 15:01:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 15:01:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 15:01:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 15:01:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 15:01:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 15:01:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 15:01:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 15:01:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 15:01:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-12-02 15:01:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-12-02 15:01:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-12-02 15:01:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-12-02 15:01:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-12-02 15:01:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-12-02 15:01:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-12-02 15:01:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-12-02 15:01:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-12-02 15:01:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2024-12-02 15:01:46,595 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2024-12-02 15:01:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-12-02 15:01:46,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-12-02 15:01:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2024-12-02 15:01:46,596 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2024-12-02 15:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_misc_lock_of_ns83820 [2024-12-02 15:01:46,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_misc_lock_of_ns83820 [2024-12-02 15:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2024-12-02 15:01:46,596 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2024-12-02 15:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_open [2024-12-02 15:01:46,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_open [2024-12-02 15:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-12-02 15:01:46,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-12-02 15:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2024-12-02 15:01:46,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2024-12-02 15:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure rx_irq [2024-12-02 15:01:46,596 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_irq [2024-12-02 15:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_disable_interrupts [2024-12-02 15:01:46,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_disable_interrupts [2024-12-02 15:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure kick_rx [2024-12-02 15:01:46,596 INFO L138 BoogieDeclarations]: Found implementation of procedure kick_rx [2024-12-02 15:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-12-02 15:01:46,596 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-12-02 15:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2024-12-02 15:01:46,596 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2024-12-02 15:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 15:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 15:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 15:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 15:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 15:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 15:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 15:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 15:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 15:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 15:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 15:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 15:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 15:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 15:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 15:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-12-02 15:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-12-02 15:01:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-12-02 15:01:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure rx_refill [2024-12-02 15:01:46,597 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_refill [2024-12-02 15:01:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-12-02 15:01:46,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-12-02 15:01:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rx_info [2024-12-02 15:01:46,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rx_info [2024-12-02 15:01:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_ns83820 [2024-12-02 15:01:46,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_ns83820 [2024-12-02 15:01:47,365 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 15:01:47,368 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 15:01:47,514 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-12-02 15:01:58,142 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-12-02 15:01:59,162 INFO L? ?]: Removed 2331 outVars from TransFormulas that were not future-live. [2024-12-02 15:01:59,162 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 15:01:59,199 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 15:01:59,199 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 15:01:59,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:01:59 BoogieIcfgContainer [2024-12-02 15:01:59,200 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 15:01:59,201 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 15:01:59,201 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 15:01:59,205 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 15:01:59,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:01:42" (1/3) ... [2024-12-02 15:01:59,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a82efca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:01:59, skipping insertion in model container [2024-12-02 15:01:59,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:01:45" (2/3) ... [2024-12-02 15:01:59,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a82efca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:01:59, skipping insertion in model container [2024-12-02 15:01:59,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:01:59" (3/3) ... [2024-12-02 15:01:59,207 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2024-12-02 15:01:59,222 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 15:01:59,225 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i that has 124 procedures, 2317 locations, 1 initial locations, 18 loop locations, and 3 error locations. [2024-12-02 15:01:59,337 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 15:01:59,348 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;@4564752a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 15:01:59,348 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-12-02 15:01:59,357 INFO L276 IsEmpty]: Start isEmpty. Operand has 2247 states, 1605 states have (on average 1.3090342679127727) internal successors, (2101), 1637 states have internal predecessors, (2101), 534 states have call successors, (534), 106 states have call predecessors, (534), 105 states have return successors, (529), 525 states have call predecessors, (529), 529 states have call successors, (529) [2024-12-02 15:01:59,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-12-02 15:01:59,367 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:01:59,368 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:01:59,368 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 15:01:59,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:01:59,374 INFO L85 PathProgramCache]: Analyzing trace with hash -703447828, now seen corresponding path program 1 times [2024-12-02 15:01:59,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:01:59,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757261652] [2024-12-02 15:01:59,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:01:59,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:02:02,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:02:03,077 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-12-02 15:02:03,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:02:03,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757261652] [2024-12-02 15:02:03,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757261652] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:02:03,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:02:03,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:02:03,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412707776] [2024-12-02 15:02:03,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:02:03,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:02:03,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:02:03,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:02:03,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:02:03,107 INFO L87 Difference]: Start difference. First operand has 2247 states, 1605 states have (on average 1.3090342679127727) internal successors, (2101), 1637 states have internal predecessors, (2101), 534 states have call successors, (534), 106 states have call predecessors, (534), 105 states have return successors, (529), 525 states have call predecessors, (529), 529 states have call successors, (529) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 15:02:07,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:02:07,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:02:07,607 INFO L93 Difference]: Finished difference Result 6625 states and 9525 transitions. [2024-12-02 15:02:07,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:02:07,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 101 [2024-12-02 15:02:07,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:02:07,649 INFO L225 Difference]: With dead ends: 6625 [2024-12-02 15:02:07,649 INFO L226 Difference]: Without dead ends: 4387 [2024-12-02 15:02:07,667 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 15:02:07,670 INFO L435 NwaCegarLoop]: 3142 mSDtfsCounter, 3012 mSDsluCounter, 3062 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3012 SdHoareTripleChecker+Valid, 6204 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:02:07,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3012 Valid, 6204 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-12-02 15:02:07,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4387 states. [2024-12-02 15:02:07,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4387 to 4383. [2024-12-02 15:02:07,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4383 states, 3150 states have (on average 1.276190476190476) internal successors, (4020), 3212 states have internal predecessors, (4020), 1023 states have call successors, (1023), 208 states have call predecessors, (1023), 207 states have return successors, (1020), 1012 states have call predecessors, (1020), 1020 states have call successors, (1020) [2024-12-02 15:02:07,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4383 states to 4383 states and 6063 transitions. [2024-12-02 15:02:07,995 INFO L78 Accepts]: Start accepts. Automaton has 4383 states and 6063 transitions. Word has length 101 [2024-12-02 15:02:07,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:02:07,996 INFO L471 AbstractCegarLoop]: Abstraction has 4383 states and 6063 transitions. [2024-12-02 15:02:07,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 15:02:07,996 INFO L276 IsEmpty]: Start isEmpty. Operand 4383 states and 6063 transitions. [2024-12-02 15:02:08,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-12-02 15:02:08,003 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:02:08,003 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:02:08,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 15:02:08,003 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-12-02 15:02:08,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:02:08,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1948196049, now seen corresponding path program 1 times [2024-12-02 15:02:08,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:02:08,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83858420] [2024-12-02 15:02:08,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:02:08,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:02:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:02:11,104 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-12-02 15:02:11,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:02:11,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83858420] [2024-12-02 15:02:11,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83858420] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:02:11,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:02:11,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:02:11,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394552143] [2024-12-02 15:02:11,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:02:11,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:02:11,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:02:11,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:02:11,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:02:11,107 INFO L87 Difference]: Start difference. First operand 4383 states and 6063 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 15:02:15,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:02:16,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:02:16,092 INFO L93 Difference]: Finished difference Result 12353 states and 17061 transitions. [2024-12-02 15:02:16,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:02:16,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 114 [2024-12-02 15:02:16,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:02:16,148 INFO L225 Difference]: With dead ends: 12353 [2024-12-02 15:02:16,148 INFO L226 Difference]: Without dead ends: 7989 [2024-12-02 15:02:16,168 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 15:02:16,169 INFO L435 NwaCegarLoop]: 3105 mSDtfsCounter, 2536 mSDsluCounter, 3011 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2536 SdHoareTripleChecker+Valid, 6116 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-12-02 15:02:16,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2536 Valid, 6116 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 59 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2024-12-02 15:02:16,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7989 states. [2024-12-02 15:02:16,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7989 to 7952. [2024-12-02 15:02:16,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7952 states, 5691 states have (on average 1.27394131084168) internal successors, (7250), 5807 states have internal predecessors, (7250), 1857 states have call successors, (1857), 402 states have call predecessors, (1857), 401 states have return successors, (1860), 1836 states have call predecessors, (1860), 1854 states have call successors, (1860) [2024-12-02 15:02:16,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7952 states to 7952 states and 10967 transitions. [2024-12-02 15:02:16,597 INFO L78 Accepts]: Start accepts. Automaton has 7952 states and 10967 transitions. Word has length 114 [2024-12-02 15:02:16,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:02:16,598 INFO L471 AbstractCegarLoop]: Abstraction has 7952 states and 10967 transitions. [2024-12-02 15:02:16,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 15:02:16,598 INFO L276 IsEmpty]: Start isEmpty. Operand 7952 states and 10967 transitions. [2024-12-02 15:02:16,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 15:02:16,601 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:02:16,601 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:02:16,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 15:02:16,601 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 15:02:16,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:02:16,602 INFO L85 PathProgramCache]: Analyzing trace with hash -115310096, now seen corresponding path program 1 times [2024-12-02 15:02:16,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:02:16,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924306017] [2024-12-02 15:02:16,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:02:16,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:02:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:02:19,560 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-12-02 15:02:19,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:02:19,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924306017] [2024-12-02 15:02:19,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924306017] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:02:19,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:02:19,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:02:19,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739000538] [2024-12-02 15:02:19,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:02:19,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:02:19,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:02:19,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:02:19,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:02:19,563 INFO L87 Difference]: Start difference. First operand 7952 states and 10967 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 15:02:23,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:02:24,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:02:24,349 INFO L93 Difference]: Finished difference Result 15579 states and 21484 transitions. [2024-12-02 15:02:24,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:02:24,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 115 [2024-12-02 15:02:24,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:02:24,407 INFO L225 Difference]: With dead ends: 15579 [2024-12-02 15:02:24,407 INFO L226 Difference]: Without dead ends: 7646 [2024-12-02 15:02:24,442 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 15:02:24,444 INFO L435 NwaCegarLoop]: 3822 mSDtfsCounter, 2243 mSDsluCounter, 3025 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2243 SdHoareTripleChecker+Valid, 6847 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-12-02 15:02:24,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2243 Valid, 6847 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 74 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2024-12-02 15:02:24,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7646 states. [2024-12-02 15:02:24,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7646 to 7618. [2024-12-02 15:02:24,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7618 states, 5448 states have (on average 1.2766152716593244) internal successors, (6955), 5569 states have internal predecessors, (6955), 1751 states have call successors, (1751), 417 states have call predecessors, (1751), 416 states have return successors, (1751), 1730 states have call predecessors, (1751), 1748 states have call successors, (1751) [2024-12-02 15:02:24,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7618 states to 7618 states and 10457 transitions. [2024-12-02 15:02:24,856 INFO L78 Accepts]: Start accepts. Automaton has 7618 states and 10457 transitions. Word has length 115 [2024-12-02 15:02:24,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:02:24,857 INFO L471 AbstractCegarLoop]: Abstraction has 7618 states and 10457 transitions. [2024-12-02 15:02:24,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 15:02:24,857 INFO L276 IsEmpty]: Start isEmpty. Operand 7618 states and 10457 transitions. [2024-12-02 15:02:24,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 15:02:24,859 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:02:24,859 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 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] [2024-12-02 15:02:24,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 15:02:24,859 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 15:02:24,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:02:24,860 INFO L85 PathProgramCache]: Analyzing trace with hash -589351707, now seen corresponding path program 1 times [2024-12-02 15:02:24,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:02:24,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809357410] [2024-12-02 15:02:24,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:02:24,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:02:27,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:02:27,681 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2024-12-02 15:02:27,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:02:27,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809357410] [2024-12-02 15:02:27,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809357410] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:02:27,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:02:27,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:02:27,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795877412] [2024-12-02 15:02:27,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:02:27,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:02:27,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:02:27,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:02:27,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:02:27,684 INFO L87 Difference]: Start difference. First operand 7618 states and 10457 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 15:02:31,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:02:32,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:02:32,051 INFO L93 Difference]: Finished difference Result 20924 states and 28716 transitions. [2024-12-02 15:02:32,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:02:32,052 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 119 [2024-12-02 15:02:32,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:02:32,114 INFO L225 Difference]: With dead ends: 20924 [2024-12-02 15:02:32,114 INFO L226 Difference]: Without dead ends: 13325 [2024-12-02 15:02:32,134 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 15:02:32,135 INFO L435 NwaCegarLoop]: 3123 mSDtfsCounter, 2891 mSDsluCounter, 2956 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2891 SdHoareTripleChecker+Valid, 6079 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:02:32,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2891 Valid, 6079 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-12-02 15:02:32,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13325 states. [2024-12-02 15:02:32,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13325 to 13286. [2024-12-02 15:02:32,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13286 states, 9512 states have (on average 1.2761774600504625) internal successors, (12139), 9732 states have internal predecessors, (12139), 3031 states have call successors, (3031), 744 states have call predecessors, (3031), 740 states have return successors, (3056), 2978 states have call predecessors, (3056), 3028 states have call successors, (3056) [2024-12-02 15:02:32,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13286 states to 13286 states and 18226 transitions. [2024-12-02 15:02:32,554 INFO L78 Accepts]: Start accepts. Automaton has 13286 states and 18226 transitions. Word has length 119 [2024-12-02 15:02:32,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:02:32,555 INFO L471 AbstractCegarLoop]: Abstraction has 13286 states and 18226 transitions. [2024-12-02 15:02:32,556 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-12-02 15:02:32,556 INFO L276 IsEmpty]: Start isEmpty. Operand 13286 states and 18226 transitions. [2024-12-02 15:02:32,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 15:02:32,557 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:02:32,557 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 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] [2024-12-02 15:02:32,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 15:02:32,558 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 15:02:32,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:02:32,558 INFO L85 PathProgramCache]: Analyzing trace with hash 2101060739, now seen corresponding path program 1 times [2024-12-02 15:02:32,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:02:32,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825974951] [2024-12-02 15:02:32,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:02:32,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:02:35,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:02:35,344 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2024-12-02 15:02:35,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:02:35,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825974951] [2024-12-02 15:02:35,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825974951] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:02:35,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:02:35,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:02:35,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870276521] [2024-12-02 15:02:35,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:02:35,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:02:35,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:02:35,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:02:35,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:02:35,346 INFO L87 Difference]: Start difference. First operand 13286 states and 18226 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 15:02:39,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:02:39,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:02:39,924 INFO L93 Difference]: Finished difference Result 36204 states and 49451 transitions. [2024-12-02 15:02:39,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:02:39,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 122 [2024-12-02 15:02:39,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:02:39,991 INFO L225 Difference]: With dead ends: 36204 [2024-12-02 15:02:39,991 INFO L226 Difference]: Without dead ends: 22937 [2024-12-02 15:02:40,016 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 15:02:40,017 INFO L435 NwaCegarLoop]: 3869 mSDtfsCounter, 2832 mSDsluCounter, 3047 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2832 SdHoareTripleChecker+Valid, 6916 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:02:40,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2832 Valid, 6916 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-12-02 15:02:40,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22937 states. [2024-12-02 15:02:40,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22937 to 22896. [2024-12-02 15:02:40,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22896 states, 16436 states have (on average 1.26563640788513) internal successors, (20802), 16792 states have internal predecessors, (20802), 5153 states have call successors, (5153), 1315 states have call predecessors, (5153), 1304 states have return successors, (5209), 5035 states have call predecessors, (5209), 5150 states have call successors, (5209) [2024-12-02 15:02:40,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22896 states to 22896 states and 31164 transitions. [2024-12-02 15:02:40,600 INFO L78 Accepts]: Start accepts. Automaton has 22896 states and 31164 transitions. Word has length 122 [2024-12-02 15:02:40,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:02:40,600 INFO L471 AbstractCegarLoop]: Abstraction has 22896 states and 31164 transitions. [2024-12-02 15:02:40,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 15:02:40,600 INFO L276 IsEmpty]: Start isEmpty. Operand 22896 states and 31164 transitions. [2024-12-02 15:02:40,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 15:02:40,602 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:02:40,602 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2024-12-02 15:02:40,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 15:02:40,603 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 15:02:40,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:02:40,603 INFO L85 PathProgramCache]: Analyzing trace with hash 969343077, now seen corresponding path program 1 times [2024-12-02 15:02:40,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:02:40,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969102723] [2024-12-02 15:02:40,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:02:40,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:02:43,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:02:43,477 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2024-12-02 15:02:43,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:02:43,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969102723] [2024-12-02 15:02:43,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969102723] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:02:43,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:02:43,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:02:43,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036555536] [2024-12-02 15:02:43,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:02:43,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:02:43,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:02:43,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:02:43,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:02:43,479 INFO L87 Difference]: Start difference. First operand 22896 states and 31164 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 15:02:47,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:02:48,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:02:48,262 INFO L93 Difference]: Finished difference Result 67789 states and 92361 transitions. [2024-12-02 15:02:48,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:02:48,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 158 [2024-12-02 15:02:48,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:02:48,404 INFO L225 Difference]: With dead ends: 67789 [2024-12-02 15:02:48,404 INFO L226 Difference]: Without dead ends: 44958 [2024-12-02 15:02:48,462 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 15:02:48,463 INFO L435 NwaCegarLoop]: 3201 mSDtfsCounter, 3016 mSDsluCounter, 3065 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3016 SdHoareTripleChecker+Valid, 6266 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:02:48,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3016 Valid, 6266 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 15:02:48,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44958 states. [2024-12-02 15:02:49,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44958 to 44934. [2024-12-02 15:02:49,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44934 states, 32314 states have (on average 1.2675929937488395) internal successors, (40961), 32984 states have internal predecessors, (40961), 10074 states have call successors, (10074), 2564 states have call predecessors, (10074), 2543 states have return successors, (10189), 9879 states have call predecessors, (10189), 10071 states have call successors, (10189) [2024-12-02 15:02:49,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44934 states to 44934 states and 61224 transitions. [2024-12-02 15:02:49,995 INFO L78 Accepts]: Start accepts. Automaton has 44934 states and 61224 transitions. Word has length 158 [2024-12-02 15:02:49,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:02:49,996 INFO L471 AbstractCegarLoop]: Abstraction has 44934 states and 61224 transitions. [2024-12-02 15:02:49,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-12-02 15:02:49,996 INFO L276 IsEmpty]: Start isEmpty. Operand 44934 states and 61224 transitions. [2024-12-02 15:02:49,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 15:02:49,998 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:02:49,998 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2024-12-02 15:02:49,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 15:02:49,999 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 15:02:49,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:02:49,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1392044903, now seen corresponding path program 1 times [2024-12-02 15:02:49,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:02:49,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943686804] [2024-12-02 15:02:49,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:02:49,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:02:52,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:02:52,987 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2024-12-02 15:02:52,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:02:52,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943686804] [2024-12-02 15:02:52,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943686804] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:02:52,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:02:52,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:02:52,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612130248] [2024-12-02 15:02:52,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:02:52,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:02:52,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:02:52,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:02:52,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:02:52,989 INFO L87 Difference]: Start difference. First operand 44934 states and 61224 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:02:54,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:02:54,074 INFO L93 Difference]: Finished difference Result 44940 states and 61229 transitions. [2024-12-02 15:02:54,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:02:54,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 158 [2024-12-02 15:02:54,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:02:54,243 INFO L225 Difference]: With dead ends: 44940 [2024-12-02 15:02:54,243 INFO L226 Difference]: Without dead ends: 44938 [2024-12-02 15:02:54,258 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:02:54,259 INFO L435 NwaCegarLoop]: 3088 mSDtfsCounter, 3046 mSDsluCounter, 6161 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3047 SdHoareTripleChecker+Valid, 9249 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:02:54,259 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3047 Valid, 9249 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:02:54,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44938 states. [2024-12-02 15:02:55,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44938 to 44938. [2024-12-02 15:02:55,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44938 states, 32317 states have (on average 1.2675681529844973) internal successors, (40964), 32987 states have internal predecessors, (40964), 10074 states have call successors, (10074), 2565 states have call predecessors, (10074), 2544 states have return successors, (10189), 9879 states have call predecessors, (10189), 10071 states have call successors, (10189) [2024-12-02 15:02:55,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44938 states to 44938 states and 61227 transitions. [2024-12-02 15:02:55,924 INFO L78 Accepts]: Start accepts. Automaton has 44938 states and 61227 transitions. Word has length 158 [2024-12-02 15:02:55,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:02:55,925 INFO L471 AbstractCegarLoop]: Abstraction has 44938 states and 61227 transitions. [2024-12-02 15:02:55,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 15:02:55,925 INFO L276 IsEmpty]: Start isEmpty. Operand 44938 states and 61227 transitions. [2024-12-02 15:02:55,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 15:02:55,928 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:02:55,928 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2024-12-02 15:02:55,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 15:02:55,928 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 15:02:55,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:02:55,929 INFO L85 PathProgramCache]: Analyzing trace with hash -2107312769, now seen corresponding path program 1 times [2024-12-02 15:02:55,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:02:55,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014832466] [2024-12-02 15:02:55,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:02:55,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:02:58,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:02:59,406 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2024-12-02 15:02:59,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:02:59,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014832466] [2024-12-02 15:02:59,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014832466] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:02:59,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:02:59,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:02:59,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890721887] [2024-12-02 15:02:59,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:02:59,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:02:59,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:02:59,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:02:59,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:02:59,408 INFO L87 Difference]: Start difference. First operand 44938 states and 61227 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 15:03:00,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:03:00,442 INFO L93 Difference]: Finished difference Result 44944 states and 61232 transitions. [2024-12-02 15:03:00,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:03:00,443 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 163 [2024-12-02 15:03:00,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:03:00,590 INFO L225 Difference]: With dead ends: 44944 [2024-12-02 15:03:00,590 INFO L226 Difference]: Without dead ends: 44942 [2024-12-02 15:03:00,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:03:00,612 INFO L435 NwaCegarLoop]: 3091 mSDtfsCounter, 3042 mSDsluCounter, 6162 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3043 SdHoareTripleChecker+Valid, 9253 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:03:00,612 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3043 Valid, 9253 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:03:00,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44942 states. [2024-12-02 15:03:01,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44942 to 44942. [2024-12-02 15:03:01,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44942 states, 32320 states have (on average 1.2675433168316832) internal successors, (40967), 32990 states have internal predecessors, (40967), 10074 states have call successors, (10074), 2566 states have call predecessors, (10074), 2545 states have return successors, (10189), 9879 states have call predecessors, (10189), 10071 states have call successors, (10189) [2024-12-02 15:03:01,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44942 states to 44942 states and 61230 transitions. [2024-12-02 15:03:01,894 INFO L78 Accepts]: Start accepts. Automaton has 44942 states and 61230 transitions. Word has length 163 [2024-12-02 15:03:01,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:03:01,894 INFO L471 AbstractCegarLoop]: Abstraction has 44942 states and 61230 transitions. [2024-12-02 15:03:01,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 15:03:01,894 INFO L276 IsEmpty]: Start isEmpty. Operand 44942 states and 61230 transitions. [2024-12-02 15:03:01,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 15:03:01,896 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:03:01,896 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2024-12-02 15:03:01,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 15:03:01,896 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 15:03:01,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:03:01,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1342214695, now seen corresponding path program 1 times [2024-12-02 15:03:01,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:03:01,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841645570] [2024-12-02 15:03:01,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:03:01,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:03:04,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:03:05,142 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-12-02 15:03:05,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:03:05,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841645570] [2024-12-02 15:03:05,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841645570] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:03:05,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:03:05,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:03:05,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557584887] [2024-12-02 15:03:05,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:03:05,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:03:05,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:03:05,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:03:05,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:03:05,144 INFO L87 Difference]: Start difference. First operand 44942 states and 61230 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 15:03:06,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:03:06,314 INFO L93 Difference]: Finished difference Result 44948 states and 61235 transitions. [2024-12-02 15:03:06,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:03:06,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 168 [2024-12-02 15:03:06,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:03:06,450 INFO L225 Difference]: With dead ends: 44948 [2024-12-02 15:03:06,450 INFO L226 Difference]: Without dead ends: 44946 [2024-12-02 15:03:06,472 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:03:06,472 INFO L435 NwaCegarLoop]: 3091 mSDtfsCounter, 3041 mSDsluCounter, 6162 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3042 SdHoareTripleChecker+Valid, 9253 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:03:06,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3042 Valid, 9253 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:03:06,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44946 states. [2024-12-02 15:03:07,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44946 to 44946. [2024-12-02 15:03:07,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44946 states, 32323 states have (on average 1.267518485289113) internal successors, (40970), 32993 states have internal predecessors, (40970), 10074 states have call successors, (10074), 2567 states have call predecessors, (10074), 2546 states have return successors, (10189), 9879 states have call predecessors, (10189), 10071 states have call successors, (10189) [2024-12-02 15:03:07,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44946 states to 44946 states and 61233 transitions. [2024-12-02 15:03:07,861 INFO L78 Accepts]: Start accepts. Automaton has 44946 states and 61233 transitions. Word has length 168 [2024-12-02 15:03:07,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:03:07,862 INFO L471 AbstractCegarLoop]: Abstraction has 44946 states and 61233 transitions. [2024-12-02 15:03:07,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 15:03:07,862 INFO L276 IsEmpty]: Start isEmpty. Operand 44946 states and 61233 transitions. [2024-12-02 15:03:07,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-12-02 15:03:07,864 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:03:07,864 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2024-12-02 15:03:07,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 15:03:07,864 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 15:03:07,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:03:07,865 INFO L85 PathProgramCache]: Analyzing trace with hash 504477247, now seen corresponding path program 1 times [2024-12-02 15:03:07,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:03:07,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839162291] [2024-12-02 15:03:07,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:03:07,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:03:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:03:10,699 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2024-12-02 15:03:10,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:03:10,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839162291] [2024-12-02 15:03:10,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839162291] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:03:10,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:03:10,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:03:10,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556442687] [2024-12-02 15:03:10,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:03:10,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:03:10,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:03:10,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:03:10,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:03:10,701 INFO L87 Difference]: Start difference. First operand 44946 states and 61233 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 15:03:11,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:03:11,900 INFO L93 Difference]: Finished difference Result 44952 states and 61238 transitions. [2024-12-02 15:03:11,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:03:11,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 173 [2024-12-02 15:03:11,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:03:12,033 INFO L225 Difference]: With dead ends: 44952 [2024-12-02 15:03:12,033 INFO L226 Difference]: Without dead ends: 44950 [2024-12-02 15:03:12,051 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:03:12,052 INFO L435 NwaCegarLoop]: 3091 mSDtfsCounter, 3040 mSDsluCounter, 6162 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3041 SdHoareTripleChecker+Valid, 9253 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:03:12,052 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3041 Valid, 9253 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:03:12,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44950 states. [2024-12-02 15:03:13,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44950 to 44950. [2024-12-02 15:03:13,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44950 states, 32326 states have (on average 1.2674936583555032) internal successors, (40973), 32996 states have internal predecessors, (40973), 10074 states have call successors, (10074), 2568 states have call predecessors, (10074), 2547 states have return successors, (10189), 9879 states have call predecessors, (10189), 10071 states have call successors, (10189) [2024-12-02 15:03:13,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44950 states to 44950 states and 61236 transitions. [2024-12-02 15:03:13,610 INFO L78 Accepts]: Start accepts. Automaton has 44950 states and 61236 transitions. Word has length 173 [2024-12-02 15:03:13,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:03:13,610 INFO L471 AbstractCegarLoop]: Abstraction has 44950 states and 61236 transitions. [2024-12-02 15:03:13,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 15:03:13,610 INFO L276 IsEmpty]: Start isEmpty. Operand 44950 states and 61236 transitions. [2024-12-02 15:03:13,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-12-02 15:03:13,612 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:03:13,613 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 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 15:03:13,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 15:03:13,613 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 15:03:13,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:03:13,613 INFO L85 PathProgramCache]: Analyzing trace with hash 170424551, now seen corresponding path program 1 times [2024-12-02 15:03:13,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:03:13,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109575022] [2024-12-02 15:03:13,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:03:13,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:03:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:03:17,018 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2024-12-02 15:03:17,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:03:17,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109575022] [2024-12-02 15:03:17,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109575022] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:03:17,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:03:17,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:03:17,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305263879] [2024-12-02 15:03:17,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:03:17,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:03:17,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:03:17,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:03:17,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:03:17,019 INFO L87 Difference]: Start difference. First operand 44950 states and 61236 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 15:03:18,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:03:18,329 INFO L93 Difference]: Finished difference Result 44956 states and 61241 transitions. [2024-12-02 15:03:18,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:03:18,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 178 [2024-12-02 15:03:18,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:03:18,429 INFO L225 Difference]: With dead ends: 44956 [2024-12-02 15:03:18,429 INFO L226 Difference]: Without dead ends: 44954 [2024-12-02 15:03:18,441 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:03:18,441 INFO L435 NwaCegarLoop]: 3091 mSDtfsCounter, 3039 mSDsluCounter, 6162 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3040 SdHoareTripleChecker+Valid, 9253 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:03:18,441 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3040 Valid, 9253 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:03:18,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44954 states. [2024-12-02 15:03:19,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44954 to 44954. [2024-12-02 15:03:19,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44954 states, 32329 states have (on average 1.267468836029571) internal successors, (40976), 32999 states have internal predecessors, (40976), 10074 states have call successors, (10074), 2569 states have call predecessors, (10074), 2548 states have return successors, (10189), 9879 states have call predecessors, (10189), 10071 states have call successors, (10189) [2024-12-02 15:03:19,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44954 states to 44954 states and 61239 transitions. [2024-12-02 15:03:19,893 INFO L78 Accepts]: Start accepts. Automaton has 44954 states and 61239 transitions. Word has length 178 [2024-12-02 15:03:19,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:03:19,893 INFO L471 AbstractCegarLoop]: Abstraction has 44954 states and 61239 transitions. [2024-12-02 15:03:19,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 15:03:19,894 INFO L276 IsEmpty]: Start isEmpty. Operand 44954 states and 61239 transitions. [2024-12-02 15:03:19,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-12-02 15:03:19,896 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:03:19,896 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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 15:03:19,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 15:03:19,897 INFO L396 AbstractCegarLoop]: === Iteration 12 === 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 15:03:19,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:03:19,897 INFO L85 PathProgramCache]: Analyzing trace with hash 875297941, now seen corresponding path program 1 times [2024-12-02 15:03:19,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:03:19,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231819616] [2024-12-02 15:03:19,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:03:19,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:03:22,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:03:22,562 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2024-12-02 15:03:22,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:03:22,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231819616] [2024-12-02 15:03:22,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231819616] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:03:22,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:03:22,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:03:22,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652992546] [2024-12-02 15:03:22,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:03:22,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:03:22,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:03:22,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:03:22,563 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:03:22,564 INFO L87 Difference]: Start difference. First operand 44954 states and 61239 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 15:03:26,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:03:28,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:03:28,918 INFO L93 Difference]: Finished difference Result 106147 states and 144682 transitions. [2024-12-02 15:03:28,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:03:28,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 180 [2024-12-02 15:03:28,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:03:29,096 INFO L225 Difference]: With dead ends: 106147 [2024-12-02 15:03:29,096 INFO L226 Difference]: Without dead ends: 61258 [2024-12-02 15:03:29,202 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 15:03:29,202 INFO L435 NwaCegarLoop]: 5264 mSDtfsCounter, 2242 mSDsluCounter, 3021 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2242 SdHoareTripleChecker+Valid, 8285 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-12-02 15:03:29,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2242 Valid, 8285 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 75 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2024-12-02 15:03:29,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61258 states. [2024-12-02 15:03:31,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61258 to 61204. [2024-12-02 15:03:31,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61204 states, 44021 states have (on average 1.2677131369119283) internal successors, (55806), 44937 states have internal predecessors, (55806), 13644 states have call successors, (13644), 3561 states have call predecessors, (13644), 3536 states have return successors, (13771), 13397 states have call predecessors, (13771), 13641 states have call successors, (13771) [2024-12-02 15:03:31,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61204 states to 61204 states and 83221 transitions. [2024-12-02 15:03:31,599 INFO L78 Accepts]: Start accepts. Automaton has 61204 states and 83221 transitions. Word has length 180 [2024-12-02 15:03:31,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:03:31,599 INFO L471 AbstractCegarLoop]: Abstraction has 61204 states and 83221 transitions. [2024-12-02 15:03:31,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 15:03:31,600 INFO L276 IsEmpty]: Start isEmpty. Operand 61204 states and 83221 transitions. [2024-12-02 15:03:31,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-12-02 15:03:31,601 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:03:31,602 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 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] [2024-12-02 15:03:31,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 15:03:31,602 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 15:03:31,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:03:31,602 INFO L85 PathProgramCache]: Analyzing trace with hash 217856618, now seen corresponding path program 1 times [2024-12-02 15:03:31,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:03:31,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356835720] [2024-12-02 15:03:31,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:03:31,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:03:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:03:34,676 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2024-12-02 15:03:34,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:03:34,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356835720] [2024-12-02 15:03:34,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356835720] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:03:34,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:03:34,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:03:34,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34062331] [2024-12-02 15:03:34,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:03:34,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:03:34,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:03:34,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:03:34,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:03:34,678 INFO L87 Difference]: Start difference. First operand 61204 states and 83221 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 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 15:03:36,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:03:36,564 INFO L93 Difference]: Finished difference Result 61210 states and 83226 transitions. [2024-12-02 15:03:36,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:03:36,564 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 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 201 [2024-12-02 15:03:36,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:03:36,720 INFO L225 Difference]: With dead ends: 61210 [2024-12-02 15:03:36,720 INFO L226 Difference]: Without dead ends: 61208 [2024-12-02 15:03:36,737 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:03:36,738 INFO L435 NwaCegarLoop]: 3091 mSDtfsCounter, 3027 mSDsluCounter, 6162 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3028 SdHoareTripleChecker+Valid, 9253 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:03:36,738 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3028 Valid, 9253 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:03:36,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61208 states. [2024-12-02 15:03:39,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61208 to 61208. [2024-12-02 15:03:39,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61208 states, 44024 states have (on average 1.2676948936943486) internal successors, (55809), 44940 states have internal predecessors, (55809), 13644 states have call successors, (13644), 3562 states have call predecessors, (13644), 3537 states have return successors, (13771), 13397 states have call predecessors, (13771), 13641 states have call successors, (13771) [2024-12-02 15:03:40,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61208 states to 61208 states and 83224 transitions. [2024-12-02 15:03:40,071 INFO L78 Accepts]: Start accepts. Automaton has 61208 states and 83224 transitions. Word has length 201 [2024-12-02 15:03:40,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:03:40,072 INFO L471 AbstractCegarLoop]: Abstraction has 61208 states and 83224 transitions. [2024-12-02 15:03:40,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 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 15:03:40,072 INFO L276 IsEmpty]: Start isEmpty. Operand 61208 states and 83224 transitions. [2024-12-02 15:03:40,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-12-02 15:03:40,073 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:03:40,073 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 7, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 4, 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] [2024-12-02 15:03:40,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 15:03:40,074 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 15:03:40,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:03:40,074 INFO L85 PathProgramCache]: Analyzing trace with hash -970940505, now seen corresponding path program 1 times [2024-12-02 15:03:40,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:03:40,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656674534] [2024-12-02 15:03:40,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:03:40,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:03:42,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:03:42,980 INFO L134 CoverageAnalysis]: Checked inductivity of 393 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2024-12-02 15:03:42,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:03:42,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656674534] [2024-12-02 15:03:42,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656674534] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:03:42,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:03:42,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:03:42,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005275737] [2024-12-02 15:03:42,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:03:42,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:03:42,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:03:42,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:03:42,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:03:42,982 INFO L87 Difference]: Start difference. First operand 61208 states and 83224 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 15:03:46,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:03:46,909 INFO L93 Difference]: Finished difference Result 116649 states and 159096 transitions. [2024-12-02 15:03:46,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:03:46,910 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 188 [2024-12-02 15:03:46,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:03:47,238 INFO L225 Difference]: With dead ends: 116649 [2024-12-02 15:03:47,238 INFO L226 Difference]: Without dead ends: 116647 [2024-12-02 15:03:47,281 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:03:47,281 INFO L435 NwaCegarLoop]: 3473 mSDtfsCounter, 2860 mSDsluCounter, 9946 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2861 SdHoareTripleChecker+Valid, 13419 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:03:47,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2861 Valid, 13419 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 15:03:47,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116647 states. [2024-12-02 15:03:52,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116647 to 116553. [2024-12-02 15:03:52,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116553 states, 83667 states have (on average 1.2675128784347474) internal successors, (106049), 85577 states have internal predecessors, (106049), 26052 states have call successors, (26052), 7021 states have call predecessors, (26052), 6831 states have return successors, (26902), 25210 states have call predecessors, (26902), 26046 states have call successors, (26902) [2024-12-02 15:03:52,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116553 states to 116553 states and 159003 transitions. [2024-12-02 15:03:52,574 INFO L78 Accepts]: Start accepts. Automaton has 116553 states and 159003 transitions. Word has length 188 [2024-12-02 15:03:52,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:03:52,574 INFO L471 AbstractCegarLoop]: Abstraction has 116553 states and 159003 transitions. [2024-12-02 15:03:52,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 15:03:52,575 INFO L276 IsEmpty]: Start isEmpty. Operand 116553 states and 159003 transitions. [2024-12-02 15:03:52,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-12-02 15:03:52,576 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:03:52,576 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 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] [2024-12-02 15:03:52,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 15:03:52,576 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 15:03:52,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:03:52,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1245147498, now seen corresponding path program 1 times [2024-12-02 15:03:52,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:03:52,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837384730] [2024-12-02 15:03:52,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:03:52,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:03:55,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:03:55,752 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2024-12-02 15:03:55,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:03:55,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837384730] [2024-12-02 15:03:55,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837384730] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:03:55,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:03:55,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:03:55,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922665771] [2024-12-02 15:03:55,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:03:55,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:03:55,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:03:55,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:03:55,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:03:55,754 INFO L87 Difference]: Start difference. First operand 116553 states and 159003 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 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 15:04:00,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:04:00,092 INFO L93 Difference]: Finished difference Result 116563 states and 159012 transitions. [2024-12-02 15:04:00,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:04:00,092 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 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 211 [2024-12-02 15:04:00,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:04:00,458 INFO L225 Difference]: With dead ends: 116563 [2024-12-02 15:04:00,458 INFO L226 Difference]: Without dead ends: 116561 [2024-12-02 15:04:00,501 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:04:00,502 INFO L435 NwaCegarLoop]: 3091 mSDtfsCounter, 3025 mSDsluCounter, 6162 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3026 SdHoareTripleChecker+Valid, 9253 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:04:00,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3026 Valid, 9253 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:04:00,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116561 states. [2024-12-02 15:04:05,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116561 to 116561. [2024-12-02 15:04:05,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116561 states, 83673 states have (on average 1.2674936956963416) internal successors, (106055), 85583 states have internal predecessors, (106055), 26052 states have call successors, (26052), 7023 states have call predecessors, (26052), 6833 states have return successors, (26902), 25210 states have call predecessors, (26902), 26046 states have call successors, (26902) [2024-12-02 15:04:05,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116561 states to 116561 states and 159009 transitions. [2024-12-02 15:04:05,659 INFO L78 Accepts]: Start accepts. Automaton has 116561 states and 159009 transitions. Word has length 211 [2024-12-02 15:04:05,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:04:05,660 INFO L471 AbstractCegarLoop]: Abstraction has 116561 states and 159009 transitions. [2024-12-02 15:04:05,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 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 15:04:05,660 INFO L276 IsEmpty]: Start isEmpty. Operand 116561 states and 159009 transitions. [2024-12-02 15:04:05,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-12-02 15:04:05,662 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:04:05,662 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 9, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 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] [2024-12-02 15:04:05,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 15:04:05,662 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 15:04:05,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:04:05,662 INFO L85 PathProgramCache]: Analyzing trace with hash 288645020, now seen corresponding path program 1 times [2024-12-02 15:04:05,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:04:05,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131026638] [2024-12-02 15:04:05,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:04:05,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:04:08,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:04:08,674 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2024-12-02 15:04:08,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:04:08,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131026638] [2024-12-02 15:04:08,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131026638] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:04:08,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:04:08,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:04:08,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658451521] [2024-12-02 15:04:08,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:04:08,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:04:08,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:04:08,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:04:08,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:04:08,676 INFO L87 Difference]: Start difference. First operand 116561 states and 159009 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 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 15:04:13,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:04:13,070 INFO L93 Difference]: Finished difference Result 128475 states and 174092 transitions. [2024-12-02 15:04:13,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:04:13,071 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 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 216 [2024-12-02 15:04:13,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:04:13,424 INFO L225 Difference]: With dead ends: 128475 [2024-12-02 15:04:13,424 INFO L226 Difference]: Without dead ends: 128473 [2024-12-02 15:04:13,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:04:13,461 INFO L435 NwaCegarLoop]: 3094 mSDtfsCounter, 2754 mSDsluCounter, 6808 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2755 SdHoareTripleChecker+Valid, 9902 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:04:13,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2755 Valid, 9902 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 15:04:13,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128473 states. [2024-12-02 15:04:18,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128473 to 128469. [2024-12-02 15:04:18,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128469 states, 92655 states have (on average 1.2687604554530247) internal successors, (117557), 94661 states have internal predecessors, (117557), 27840 states have call successors, (27840), 8161 states have call predecessors, (27840), 7971 states have return successors, (28690), 26998 states have call predecessors, (28690), 27834 states have call successors, (28690) [2024-12-02 15:04:18,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128469 states to 128469 states and 174087 transitions. [2024-12-02 15:04:19,012 INFO L78 Accepts]: Start accepts. Automaton has 128469 states and 174087 transitions. Word has length 216 [2024-12-02 15:04:19,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:04:19,012 INFO L471 AbstractCegarLoop]: Abstraction has 128469 states and 174087 transitions. [2024-12-02 15:04:19,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 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 15:04:19,012 INFO L276 IsEmpty]: Start isEmpty. Operand 128469 states and 174087 transitions. [2024-12-02 15:04:19,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-12-02 15:04:19,014 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:04:19,014 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 10, 9, 9, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2024-12-02 15:04:19,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 15:04:19,015 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 15:04:19,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:04:19,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1082554495, now seen corresponding path program 1 times [2024-12-02 15:04:19,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:04:19,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785213664] [2024-12-02 15:04:19,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:04:19,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:04:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:04:22,431 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2024-12-02 15:04:22,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:04:22,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785213664] [2024-12-02 15:04:22,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785213664] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:04:22,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:04:22,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:04:22,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211105994] [2024-12-02 15:04:22,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:04:22,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:04:22,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:04:22,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:04:22,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:04:22,433 INFO L87 Difference]: Start difference. First operand 128469 states and 174087 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 15:04:27,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:04:27,738 INFO L93 Difference]: Finished difference Result 128479 states and 174096 transitions. [2024-12-02 15:04:27,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:04:27,739 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 203 [2024-12-02 15:04:27,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:04:28,216 INFO L225 Difference]: With dead ends: 128479 [2024-12-02 15:04:28,216 INFO L226 Difference]: Without dead ends: 128477 [2024-12-02 15:04:28,266 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:04:28,266 INFO L435 NwaCegarLoop]: 3091 mSDtfsCounter, 3034 mSDsluCounter, 6162 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3035 SdHoareTripleChecker+Valid, 9253 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:04:28,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3035 Valid, 9253 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 15:04:28,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128477 states. [2024-12-02 15:04:35,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128477 to 128477. [2024-12-02 15:04:35,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128477 states, 92661 states have (on average 1.268743052632715) internal successors, (117563), 94667 states have internal predecessors, (117563), 27840 states have call successors, (27840), 8163 states have call predecessors, (27840), 7973 states have return successors, (28690), 26998 states have call predecessors, (28690), 27834 states have call successors, (28690) [2024-12-02 15:04:35,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128477 states to 128477 states and 174093 transitions. [2024-12-02 15:04:35,832 INFO L78 Accepts]: Start accepts. Automaton has 128477 states and 174093 transitions. Word has length 203 [2024-12-02 15:04:35,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:04:35,832 INFO L471 AbstractCegarLoop]: Abstraction has 128477 states and 174093 transitions. [2024-12-02 15:04:35,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 15:04:35,833 INFO L276 IsEmpty]: Start isEmpty. Operand 128477 states and 174093 transitions. [2024-12-02 15:04:35,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-12-02 15:04:35,834 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:04:35,834 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2024-12-02 15:04:35,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 15:04:35,834 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 15:04:35,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:04:35,835 INFO L85 PathProgramCache]: Analyzing trace with hash -901665497, now seen corresponding path program 1 times [2024-12-02 15:04:35,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:04:35,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913657270] [2024-12-02 15:04:35,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:04:35,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:04:38,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:04:38,795 INFO L134 CoverageAnalysis]: Checked inductivity of 521 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2024-12-02 15:04:38,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:04:38,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913657270] [2024-12-02 15:04:38,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913657270] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:04:38,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:04:38,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:04:38,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177450021] [2024-12-02 15:04:38,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:04:38,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:04:38,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:04:38,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:04:38,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:04:38,797 INFO L87 Difference]: Start difference. First operand 128477 states and 174093 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 15:04:43,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:04:43,775 INFO L93 Difference]: Finished difference Result 128487 states and 174102 transitions. [2024-12-02 15:04:43,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:04:43,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 208 [2024-12-02 15:04:43,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:04:44,147 INFO L225 Difference]: With dead ends: 128487 [2024-12-02 15:04:44,148 INFO L226 Difference]: Without dead ends: 128485 [2024-12-02 15:04:44,195 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:04:44,195 INFO L435 NwaCegarLoop]: 3091 mSDtfsCounter, 3033 mSDsluCounter, 6162 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3034 SdHoareTripleChecker+Valid, 9253 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:04:44,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3034 Valid, 9253 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:04:44,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128485 states. [2024-12-02 15:04:50,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128485 to 128485. [2024-12-02 15:04:50,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128485 states, 92667 states have (on average 1.2687256520659997) internal successors, (117569), 94673 states have internal predecessors, (117569), 27840 states have call successors, (27840), 8165 states have call predecessors, (27840), 7975 states have return successors, (28690), 26998 states have call predecessors, (28690), 27834 states have call successors, (28690) [2024-12-02 15:04:50,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128485 states to 128485 states and 174099 transitions. [2024-12-02 15:04:50,588 INFO L78 Accepts]: Start accepts. Automaton has 128485 states and 174099 transitions. Word has length 208 [2024-12-02 15:04:50,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:04:50,589 INFO L471 AbstractCegarLoop]: Abstraction has 128485 states and 174099 transitions. [2024-12-02 15:04:50,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 15:04:50,589 INFO L276 IsEmpty]: Start isEmpty. Operand 128485 states and 174099 transitions. [2024-12-02 15:04:50,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-12-02 15:04:50,590 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:04:50,590 INFO L218 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2024-12-02 15:04:50,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 15:04:50,591 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 15:04:50,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:04:50,591 INFO L85 PathProgramCache]: Analyzing trace with hash -130926273, now seen corresponding path program 1 times [2024-12-02 15:04:50,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:04:50,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759421779] [2024-12-02 15:04:50,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:04:50,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:04:53,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:04:54,265 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 541 trivial. 0 not checked. [2024-12-02 15:04:54,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:04:54,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759421779] [2024-12-02 15:04:54,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759421779] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:04:54,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:04:54,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:04:54,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392350964] [2024-12-02 15:04:54,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:04:54,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:04:54,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:04:54,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:04:54,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:04:54,267 INFO L87 Difference]: Start difference. First operand 128485 states and 174099 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 15:04:59,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:04:59,622 INFO L93 Difference]: Finished difference Result 128495 states and 174108 transitions. [2024-12-02 15:04:59,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:04:59,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 213 [2024-12-02 15:04:59,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:05:00,005 INFO L225 Difference]: With dead ends: 128495 [2024-12-02 15:05:00,005 INFO L226 Difference]: Without dead ends: 128493 [2024-12-02 15:05:00,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:05:00,046 INFO L435 NwaCegarLoop]: 3091 mSDtfsCounter, 3032 mSDsluCounter, 6162 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3033 SdHoareTripleChecker+Valid, 9253 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:05:00,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3033 Valid, 9253 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:05:00,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128493 states. [2024-12-02 15:05:07,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128493 to 128493. [2024-12-02 15:05:07,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128493 states, 92673 states have (on average 1.2687082537524415) internal successors, (117575), 94679 states have internal predecessors, (117575), 27840 states have call successors, (27840), 8167 states have call predecessors, (27840), 7977 states have return successors, (28690), 26998 states have call predecessors, (28690), 27834 states have call successors, (28690) [2024-12-02 15:05:08,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128493 states to 128493 states and 174105 transitions. [2024-12-02 15:05:08,080 INFO L78 Accepts]: Start accepts. Automaton has 128493 states and 174105 transitions. Word has length 213 [2024-12-02 15:05:08,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:05:08,080 INFO L471 AbstractCegarLoop]: Abstraction has 128493 states and 174105 transitions. [2024-12-02 15:05:08,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 15:05:08,081 INFO L276 IsEmpty]: Start isEmpty. Operand 128493 states and 174105 transitions. [2024-12-02 15:05:08,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-12-02 15:05:08,082 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:05:08,083 INFO L218 NwaCegarLoop]: trace histogram [13, 12, 12, 11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2024-12-02 15:05:08,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 15:05:08,083 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 15:05:08,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:05:08,084 INFO L85 PathProgramCache]: Analyzing trace with hash 264934375, now seen corresponding path program 1 times [2024-12-02 15:05:08,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:05:08,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728933709] [2024-12-02 15:05:08,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:05:08,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:05:11,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:05:11,642 INFO L134 CoverageAnalysis]: Checked inductivity of 609 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2024-12-02 15:05:11,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:05:11,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728933709] [2024-12-02 15:05:11,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728933709] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:05:11,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:05:11,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:05:11,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927886912] [2024-12-02 15:05:11,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:05:11,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:05:11,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:05:11,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:05:11,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:05:11,646 INFO L87 Difference]: Start difference. First operand 128493 states and 174105 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 15:05:18,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:05:18,941 INFO L93 Difference]: Finished difference Result 128503 states and 174114 transitions. [2024-12-02 15:05:18,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:05:18,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 218 [2024-12-02 15:05:18,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:05:19,397 INFO L225 Difference]: With dead ends: 128503 [2024-12-02 15:05:19,398 INFO L226 Difference]: Without dead ends: 128499 [2024-12-02 15:05:19,444 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:05:19,445 INFO L435 NwaCegarLoop]: 3091 mSDtfsCounter, 3031 mSDsluCounter, 6162 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3032 SdHoareTripleChecker+Valid, 9253 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:05:19,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3032 Valid, 9253 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 15:05:19,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128499 states. [2024-12-02 15:05:27,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128499 to 128499. [2024-12-02 15:05:27,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128499 states, 92678 states have (on average 1.2686829668313948) internal successors, (117579), 94683 states have internal predecessors, (117579), 27840 states have call successors, (27840), 8169 states have call predecessors, (27840), 7978 states have return successors, (28690), 26998 states have call predecessors, (28690), 27834 states have call successors, (28690) [2024-12-02 15:05:28,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128499 states to 128499 states and 174109 transitions. [2024-12-02 15:05:28,407 INFO L78 Accepts]: Start accepts. Automaton has 128499 states and 174109 transitions. Word has length 218 [2024-12-02 15:05:28,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:05:28,407 INFO L471 AbstractCegarLoop]: Abstraction has 128499 states and 174109 transitions. [2024-12-02 15:05:28,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 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 15:05:28,407 INFO L276 IsEmpty]: Start isEmpty. Operand 128499 states and 174109 transitions. [2024-12-02 15:05:28,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2024-12-02 15:05:28,410 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:05:28,410 INFO L218 NwaCegarLoop]: trace histogram [14, 13, 13, 11, 11, 7, 7, 7, 7, 7, 7, 6, 6, 6, 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] [2024-12-02 15:05:28,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 15:05:28,411 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 15:05:28,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:05:28,411 INFO L85 PathProgramCache]: Analyzing trace with hash 164542058, now seen corresponding path program 1 times [2024-12-02 15:05:28,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:05:28,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574513717] [2024-12-02 15:05:28,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:05:28,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:05:32,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:05:33,337 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 668 trivial. 0 not checked. [2024-12-02 15:05:33,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:05:33,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574513717] [2024-12-02 15:05:33,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574513717] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:05:33,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:05:33,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:05:33,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53844440] [2024-12-02 15:05:33,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:05:33,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:05:33,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:05:33,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:05:33,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:05:33,339 INFO L87 Difference]: Start difference. First operand 128499 states and 174109 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-12-02 15:05:41,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:05:41,265 INFO L93 Difference]: Finished difference Result 135523 states and 180835 transitions. [2024-12-02 15:05:41,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:05:41,266 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 241 [2024-12-02 15:05:41,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:05:41,831 INFO L225 Difference]: With dead ends: 135523 [2024-12-02 15:05:41,832 INFO L226 Difference]: Without dead ends: 135067 [2024-12-02 15:05:41,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:05:41,874 INFO L435 NwaCegarLoop]: 3162 mSDtfsCounter, 2833 mSDsluCounter, 6885 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2833 SdHoareTripleChecker+Valid, 10047 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:05:41,874 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2833 Valid, 10047 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 15:05:41,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135067 states. [2024-12-02 15:05:50,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135067 to 135065. [2024-12-02 15:05:50,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135065 states, 97188 states have (on average 1.260320204140429) internal successors, (122488), 99206 states have internal predecessors, (122488), 28419 states have call successors, (28419), 9651 states have call predecessors, (28419), 9455 states have return successors, (29264), 27619 states have call predecessors, (29264), 28410 states have call successors, (29264) [2024-12-02 15:05:51,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135065 states to 135065 states and 180171 transitions. [2024-12-02 15:05:51,179 INFO L78 Accepts]: Start accepts. Automaton has 135065 states and 180171 transitions. Word has length 241 [2024-12-02 15:05:51,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:05:51,180 INFO L471 AbstractCegarLoop]: Abstraction has 135065 states and 180171 transitions. [2024-12-02 15:05:51,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-12-02 15:05:51,180 INFO L276 IsEmpty]: Start isEmpty. Operand 135065 states and 180171 transitions. [2024-12-02 15:05:51,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-12-02 15:05:51,182 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:05:51,182 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 8, 8, 8, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:05:51,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 15:05:51,182 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 15:05:51,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:05:51,183 INFO L85 PathProgramCache]: Analyzing trace with hash 699644471, now seen corresponding path program 1 times [2024-12-02 15:05:51,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:05:51,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233154634] [2024-12-02 15:05:51,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:05:51,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:05:54,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:05:54,705 INFO L134 CoverageAnalysis]: Checked inductivity of 499 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2024-12-02 15:05:54,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:05:54,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233154634] [2024-12-02 15:05:54,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233154634] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:05:54,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:05:54,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:05:54,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968737737] [2024-12-02 15:05:54,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:05:54,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:05:54,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:05:54,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:05:54,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:05:54,707 INFO L87 Difference]: Start difference. First operand 135065 states and 180171 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 15:05:58,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:06:09,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:06:09,603 INFO L93 Difference]: Finished difference Result 307812 states and 410392 transitions. [2024-12-02 15:06:09,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:06:09,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 254 [2024-12-02 15:06:09,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:06:10,292 INFO L225 Difference]: With dead ends: 307812 [2024-12-02 15:06:10,292 INFO L226 Difference]: Without dead ends: 172812 [2024-12-02 15:06:10,605 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 15:06:10,610 INFO L435 NwaCegarLoop]: 5299 mSDtfsCounter, 2809 mSDsluCounter, 2492 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2809 SdHoareTripleChecker+Valid, 7791 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-12-02 15:06:10,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2809 Valid, 7791 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 74 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2024-12-02 15:06:10,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172812 states. [2024-12-02 15:06:21,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172812 to 172755. [2024-12-02 15:06:21,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172755 states, 124352 states have (on average 1.259794776119403) internal successors, (156658), 126926 states have internal predecessors, (156658), 36081 states have call successors, (36081), 12571 states have call predecessors, (36081), 12319 states have return successors, (37058), 35081 states have call predecessors, (37058), 36072 states have call successors, (37058) [2024-12-02 15:06:22,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172755 states to 172755 states and 229797 transitions. [2024-12-02 15:06:22,320 INFO L78 Accepts]: Start accepts. Automaton has 172755 states and 229797 transitions. Word has length 254 [2024-12-02 15:06:22,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:06:22,320 INFO L471 AbstractCegarLoop]: Abstraction has 172755 states and 229797 transitions. [2024-12-02 15:06:22,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 15:06:22,321 INFO L276 IsEmpty]: Start isEmpty. Operand 172755 states and 229797 transitions. [2024-12-02 15:06:22,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-12-02 15:06:22,324 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:06:22,324 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 8, 8, 8, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:06:22,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 15:06:22,324 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 15:06:22,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:06:22,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1543649973, now seen corresponding path program 1 times [2024-12-02 15:06:22,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:06:22,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862813624] [2024-12-02 15:06:22,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:06:22,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:06:26,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:06:26,747 INFO L134 CoverageAnalysis]: Checked inductivity of 499 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2024-12-02 15:06:26,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:06:26,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862813624] [2024-12-02 15:06:26,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862813624] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:06:26,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:06:26,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:06:26,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483784646] [2024-12-02 15:06:26,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:06:26,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:06:26,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:06:26,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:06:26,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:06:26,750 INFO L87 Difference]: Start difference. First operand 172755 states and 229797 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 15:06:30,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:06:42,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:06:42,996 INFO L93 Difference]: Finished difference Result 382131 states and 508432 transitions. [2024-12-02 15:06:42,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:06:42,997 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 254 [2024-12-02 15:06:42,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:06:44,099 INFO L225 Difference]: With dead ends: 382131 [2024-12-02 15:06:44,099 INFO L226 Difference]: Without dead ends: 209309 [2024-12-02 15:06:44,497 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 15:06:44,498 INFO L435 NwaCegarLoop]: 5289 mSDtfsCounter, 2222 mSDsluCounter, 3014 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2222 SdHoareTripleChecker+Valid, 8303 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-12-02 15:06:44,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2222 Valid, 8303 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 71 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2024-12-02 15:06:44,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209309 states. [2024-12-02 15:06:58,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209309 to 209083. [2024-12-02 15:06:59,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209083 states, 150581 states have (on average 1.2604046991320286) internal successors, (189793), 153700 states have internal predecessors, (189793), 43517 states have call successors, (43517), 15289 states have call predecessors, (43517), 14982 states have return successors, (44621), 42318 states have call predecessors, (44621), 43505 states have call successors, (44621) [2024-12-02 15:06:59,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209083 states to 209083 states and 277931 transitions. [2024-12-02 15:07:00,060 INFO L78 Accepts]: Start accepts. Automaton has 209083 states and 277931 transitions. Word has length 254 [2024-12-02 15:07:00,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:07:00,061 INFO L471 AbstractCegarLoop]: Abstraction has 209083 states and 277931 transitions. [2024-12-02 15:07:00,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 15:07:00,061 INFO L276 IsEmpty]: Start isEmpty. Operand 209083 states and 277931 transitions. [2024-12-02 15:07:00,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2024-12-02 15:07:00,064 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:07:00,065 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 10, 10, 10, 7, 7, 7, 7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:07:00,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 15:07:00,065 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 15:07:00,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:07:00,066 INFO L85 PathProgramCache]: Analyzing trace with hash 694710098, now seen corresponding path program 1 times [2024-12-02 15:07:00,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:07:00,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092359012] [2024-12-02 15:07:00,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:07:00,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:07:02,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:07:03,458 INFO L134 CoverageAnalysis]: Checked inductivity of 692 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 668 trivial. 0 not checked. [2024-12-02 15:07:03,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:07:03,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092359012] [2024-12-02 15:07:03,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092359012] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:07:03,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:07:03,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:07:03,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319051644] [2024-12-02 15:07:03,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:07:03,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:07:03,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:07:03,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:07:03,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:07:03,460 INFO L87 Difference]: Start difference. First operand 209083 states and 277931 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-12-02 15:07:07,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:07:24,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:07:24,616 INFO L93 Difference]: Finished difference Result 454818 states and 604764 transitions. [2024-12-02 15:07:24,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:07:24,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 321 [2024-12-02 15:07:24,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:07:25,677 INFO L225 Difference]: With dead ends: 454818 [2024-12-02 15:07:25,678 INFO L226 Difference]: Without dead ends: 245800 [2024-12-02 15:07:26,071 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 15:07:26,071 INFO L435 NwaCegarLoop]: 4697 mSDtfsCounter, 2222 mSDsluCounter, 3013 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2222 SdHoareTripleChecker+Valid, 7710 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-12-02 15:07:26,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2222 Valid, 7710 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 74 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2024-12-02 15:07:26,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245800 states. [2024-12-02 15:07:40,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245800 to 245743. [2024-12-02 15:07:40,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245743 states, 177057 states have (on average 1.2607408913513727) internal successors, (223223), 180728 states have internal predecessors, (223223), 51007 states have call successors, (51007), 18035 states have call predecessors, (51007), 17676 states have return successors, (52243), 49612 states have call predecessors, (52243), 50995 states have call successors, (52243) [2024-12-02 15:07:41,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245743 states to 245743 states and 326473 transitions. [2024-12-02 15:07:42,002 INFO L78 Accepts]: Start accepts. Automaton has 245743 states and 326473 transitions. Word has length 321 [2024-12-02 15:07:42,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:07:42,003 INFO L471 AbstractCegarLoop]: Abstraction has 245743 states and 326473 transitions. [2024-12-02 15:07:42,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-12-02 15:07:42,003 INFO L276 IsEmpty]: Start isEmpty. Operand 245743 states and 326473 transitions. [2024-12-02 15:07:42,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2024-12-02 15:07:42,006 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:07:42,006 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 10, 10, 10, 7, 7, 7, 7, 7, 7, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:07:42,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 15:07:42,006 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 15:07:42,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:07:42,007 INFO L85 PathProgramCache]: Analyzing trace with hash -149295404, now seen corresponding path program 1 times [2024-12-02 15:07:42,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:07:42,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533672404] [2024-12-02 15:07:42,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:07:42,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:07:45,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:07:46,027 INFO L134 CoverageAnalysis]: Checked inductivity of 692 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 668 trivial. 0 not checked. [2024-12-02 15:07:46,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:07:46,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533672404] [2024-12-02 15:07:46,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533672404] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:07:46,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:07:46,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:07:46,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071011843] [2024-12-02 15:07:46,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:07:46,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:07:46,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:07:46,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:07:46,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:07:46,029 INFO L87 Difference]: Start difference. First operand 245743 states and 326473 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-12-02 15:07:50,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:08:08,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:08:08,391 INFO L93 Difference]: Finished difference Result 528522 states and 702328 transitions. [2024-12-02 15:08:08,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:08:08,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 321 [2024-12-02 15:08:08,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:08:09,750 INFO L225 Difference]: With dead ends: 528522 [2024-12-02 15:08:09,750 INFO L226 Difference]: Without dead ends: 282844 [2024-12-02 15:08:10,544 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 15:08:10,545 INFO L435 NwaCegarLoop]: 5289 mSDtfsCounter, 2235 mSDsluCounter, 3014 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2235 SdHoareTripleChecker+Valid, 8303 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-12-02 15:08:10,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2235 Valid, 8303 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 75 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2024-12-02 15:08:10,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282844 states. [2024-12-02 15:08:27,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282844 to 282787. [2024-12-02 15:08:27,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282787 states, 203853 states have (on average 1.2608938794131066) internal successors, (257037), 208076 states have internal predecessors, (257037), 58529 states have call successors, (58529), 20813 states have call predecessors, (58529), 20402 states have return successors, (59897), 56938 states have call predecessors, (59897), 58517 states have call successors, (59897) [2024-12-02 15:08:28,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282787 states to 282787 states and 375463 transitions. [2024-12-02 15:08:28,301 INFO L78 Accepts]: Start accepts. Automaton has 282787 states and 375463 transitions. Word has length 321 [2024-12-02 15:08:28,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:08:28,301 INFO L471 AbstractCegarLoop]: Abstraction has 282787 states and 375463 transitions. [2024-12-02 15:08:28,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-12-02 15:08:28,301 INFO L276 IsEmpty]: Start isEmpty. Operand 282787 states and 375463 transitions. [2024-12-02 15:08:28,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2024-12-02 15:08:28,304 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:08:28,304 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 11, 11, 11, 7, 7, 7, 7, 7, 7, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:08:28,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-02 15:08:28,304 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 15:08:28,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:08:28,305 INFO L85 PathProgramCache]: Analyzing trace with hash 718513933, now seen corresponding path program 1 times [2024-12-02 15:08:28,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:08:28,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966076873] [2024-12-02 15:08:28,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:08:28,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:08:31,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:08:32,494 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2024-12-02 15:08:32,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:08:32,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966076873] [2024-12-02 15:08:32,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966076873] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:08:32,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:08:32,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:08:32,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036118596] [2024-12-02 15:08:32,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:08:32,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:08:32,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:08:32,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:08:32,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:08:32,496 INFO L87 Difference]: Start difference. First operand 282787 states and 375463 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-12-02 15:08:46,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:08:46,090 INFO L93 Difference]: Finished difference Result 283591 states and 376265 transitions. [2024-12-02 15:08:46,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:08:46,091 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 362 [2024-12-02 15:08:46,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:08:47,093 INFO L225 Difference]: With dead ends: 283591 [2024-12-02 15:08:47,093 INFO L226 Difference]: Without dead ends: 283589 [2024-12-02 15:08:47,201 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:08:47,201 INFO L435 NwaCegarLoop]: 3145 mSDtfsCounter, 2780 mSDsluCounter, 6869 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2781 SdHoareTripleChecker+Valid, 10014 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:08:47,202 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2781 Valid, 10014 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:08:47,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283589 states.