./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 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a764b8b0-e612-485f-b01c-c0978be9dc48/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a764b8b0-e612-485f-b01c-c0978be9dc48/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a764b8b0-e612-485f-b01c-c0978be9dc48/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a764b8b0-e612-485f-b01c-c0978be9dc48/bin/uautomizer-verify-bycVGegfSx/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_a764b8b0-e612-485f-b01c-c0978be9dc48/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a764b8b0-e612-485f-b01c-c0978be9dc48/bin/uautomizer-verify-bycVGegfSx --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 0.2.3-dev-527bcce [2023-11-21 22:15:40,253 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:15:40,353 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a764b8b0-e612-485f-b01c-c0978be9dc48/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 22:15:40,359 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:15:40,359 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:15:40,388 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:15:40,388 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:15:40,389 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:15:40,390 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:15:40,390 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:15:40,391 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:15:40,392 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:15:40,393 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:15:40,393 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:15:40,394 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:15:40,394 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:15:40,395 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:15:40,395 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:15:40,396 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:15:40,397 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:15:40,397 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:15:40,398 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:15:40,399 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:15:40,399 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:15:40,400 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:15:40,400 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:15:40,401 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:15:40,402 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:15:40,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:15:40,403 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:15:40,403 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:15:40,404 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:15:40,405 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:15:40,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:15:40,406 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:15:40,406 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:15:40,407 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:15:40,407 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:15:40,408 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:15:40,409 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a764b8b0-e612-485f-b01c-c0978be9dc48/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a764b8b0-e612-485f-b01c-c0978be9dc48/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8ab8b9c7011aec39f84a1ecf826f202398208cb106ea4649e1adfd1ea4d4076 [2023-11-21 22:15:40,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:15:40,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:15:40,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:15:40,706 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:15:40,707 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:15:40,708 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a764b8b0-e612-485f-b01c-c0978be9dc48/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2023-11-21 22:15:43,725 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:15:44,443 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:15:44,443 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a764b8b0-e612-485f-b01c-c0978be9dc48/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2023-11-21 22:15:44,492 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a764b8b0-e612-485f-b01c-c0978be9dc48/bin/uautomizer-verify-bycVGegfSx/data/a911abfd6/ca0a4cab62554694909162e40f1df7d0/FLAG0245f1ed8 [2023-11-21 22:15:44,511 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a764b8b0-e612-485f-b01c-c0978be9dc48/bin/uautomizer-verify-bycVGegfSx/data/a911abfd6/ca0a4cab62554694909162e40f1df7d0 [2023-11-21 22:15:44,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:15:44,523 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:15:44,526 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:15:44,527 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:15:44,532 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:15:44,533 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:15:44" (1/1) ... [2023-11-21 22:15:44,534 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77d7bbeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:44, skipping insertion in model container [2023-11-21 22:15:44,534 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:15:44" (1/1) ... [2023-11-21 22:15:44,757 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:15:48,116 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a764b8b0-e612-485f-b01c-c0978be9dc48/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] [2023-11-21 22:15:48,121 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a764b8b0-e612-485f-b01c-c0978be9dc48/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] [2023-11-21 22:15:48,122 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a764b8b0-e612-485f-b01c-c0978be9dc48/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] [2023-11-21 22:15:48,123 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a764b8b0-e612-485f-b01c-c0978be9dc48/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] [2023-11-21 22:15:48,153 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:15:48,209 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:15:48,446 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] [2023-11-21 22:15:48,448 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] [2023-11-21 22:15:48,449 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5273] [2023-11-21 22:15:48,452 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] [2023-11-21 22:15:48,452 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] [2023-11-21 22:15:48,454 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] [2023-11-21 22:15:48,455 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] [2023-11-21 22:15:48,460 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5513] [2023-11-21 22:15:48,461 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5520] [2023-11-21 22:15:48,470 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] [2023-11-21 22:15:48,473 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] [2023-11-21 22:15:48,475 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] [2023-11-21 22:15:48,476 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] [2023-11-21 22:15:48,507 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6297] [2023-11-21 22:15:48,509 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] [2023-11-21 22:15:48,542 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6765] [2023-11-21 22:15:48,552 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6925] [2023-11-21 22:15:48,585 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)dev->rx_info.next_rx_desc) [7447] [2023-11-21 22:15:48,799 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a764b8b0-e612-485f-b01c-c0978be9dc48/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] [2023-11-21 22:15:48,800 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a764b8b0-e612-485f-b01c-c0978be9dc48/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] [2023-11-21 22:15:48,801 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a764b8b0-e612-485f-b01c-c0978be9dc48/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] [2023-11-21 22:15:48,801 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a764b8b0-e612-485f-b01c-c0978be9dc48/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] [2023-11-21 22:15:48,817 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:15:49,126 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:15:49,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:49 WrapperNode [2023-11-21 22:15:49,127 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:15:49,128 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:15:49,129 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:15:49,129 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:15:49,138 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:49" (1/1) ... [2023-11-21 22:15:49,294 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:49" (1/1) ... [2023-11-21 22:15:49,512 INFO L138 Inliner]: procedures = 459, calls = 1838, calls flagged for inlining = 218, calls inlined = 200, statements flattened = 5022 [2023-11-21 22:15:49,513 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:15:49,514 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:15:49,514 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:15:49,514 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:15:49,528 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:49" (1/1) ... [2023-11-21 22:15:49,528 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:49" (1/1) ... [2023-11-21 22:15:49,559 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:49" (1/1) ... [2023-11-21 22:15:51,011 WARN L106 HeapSplitter]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure #Ultimate.C_memset is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2023-11-21 22:15:51,011 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:49" (1/1) ... [2023-11-21 22:15:51,011 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:49" (1/1) ... [2023-11-21 22:15:51,159 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:49" (1/1) ... [2023-11-21 22:15:51,185 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:49" (1/1) ... [2023-11-21 22:15:51,212 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:49" (1/1) ... [2023-11-21 22:15:51,229 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:49" (1/1) ... [2023-11-21 22:15:51,282 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:15:51,284 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:15:51,284 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:15:51,284 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:15:51,286 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:49" (1/1) ... [2023-11-21 22:15:51,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:15:51,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a764b8b0-e612-485f-b01c-c0978be9dc48/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:15:51,319 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a764b8b0-e612-485f-b01c-c0978be9dc48/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:15:51,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a764b8b0-e612-485f-b01c-c0978be9dc48/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:15:51,376 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_set_multicast [2023-11-21 22:15:51,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_set_multicast [2023-11-21 22:15:51,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-21 22:15:51,378 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-21 22:15:51,379 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_rx_kick [2023-11-21 22:15:51,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_rx_kick [2023-11-21 22:15:51,380 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-21 22:15:51,380 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-21 22:15:51,381 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_do_reset [2023-11-21 22:15:51,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_do_reset [2023-11-21 22:15:51,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_87 [2023-11-21 22:15:51,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_87 [2023-11-21 22:15:51,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 22:15:51,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 22:15:51,382 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-21 22:15:51,382 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-21 22:15:51,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-21 22:15:51,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-21 22:15:51,383 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-21 22:15:51,383 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-21 22:15:51,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_62 [2023-11-21 22:15:51,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_62 [2023-11-21 22:15:51,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_73 [2023-11-21 22:15:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_73 [2023-11-21 22:15:51,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_69 [2023-11-21 22:15:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_69 [2023-11-21 22:15:51,384 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_remove_one [2023-11-21 22:15:51,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_remove_one [2023-11-21 22:15:51,385 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-21 22:15:51,385 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-21 22:15:51,385 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_update_stats [2023-11-21 22:15:51,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_update_stats [2023-11-21 22:15:51,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-21 22:15:51,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-21 22:15:51,386 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-21 22:15:51,386 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-21 22:15:51,386 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-11-21 22:15:51,387 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-11-21 22:15:51,387 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-21 22:15:51,387 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-21 22:15:51,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-21 22:15:51,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-21 22:15:51,389 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-21 22:15:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-21 22:15:51,389 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-21 22:15:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-21 22:15:51,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:15:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-21 22:15:51,390 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-21 22:15:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-21 22:15:51,390 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-21 22:15:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-21 22:15:51,390 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-21 22:15:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_tx_timeout [2023-11-21 22:15:51,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_tx_timeout [2023-11-21 22:15:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-21 22:15:51,391 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-21 22:15:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-21 22:15:51,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-21 22:15:51,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-21 22:15:51,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-21 22:15:51,392 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-21 22:15:51,392 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-21 22:15:51,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:15:51,393 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-21 22:15:51,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-21 22:15:51,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-21 22:15:51,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-21 22:15:51,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-21 22:15:51,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-21 22:15:51,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-21 22:15:51,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-21 22:15:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2023-11-21 22:15:51,395 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2023-11-21 22:15:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-21 22:15:51,395 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-21 22:15:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-21 22:15:51,395 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-21 22:15:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-21 22:15:51,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-21 22:15:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_run_bist [2023-11-21 22:15:51,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_run_bist [2023-11-21 22:15:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:15:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-21 22:15:51,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-21 22:15:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-21 22:15:51,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-21 22:15:51,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2023-11-21 22:15:51,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2023-11-21 22:15:51,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:15:51,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-21 22:15:51,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-21 22:15:51,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:15:51,399 INFO L130 BoogieDeclarations]: Found specification of procedure clear_rx_desc [2023-11-21 22:15:51,399 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_rx_desc [2023-11-21 22:15:51,399 INFO L130 BoogieDeclarations]: Found specification of procedure phy_intr [2023-11-21 22:15:51,400 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_intr [2023-11-21 22:15:51,400 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 22:15:51,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 22:15:51,401 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-21 22:15:51,401 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-21 22:15:51,401 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-21 22:15:51,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-21 22:15:51,402 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-21 22:15:51,402 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-21 22:15:51,402 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-21 22:15:51,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-21 22:15:51,402 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2023-11-21 22:15:51,402 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2023-11-21 22:15:51,403 INFO L130 BoogieDeclarations]: Found specification of procedure do_tx_done [2023-11-21 22:15:51,403 INFO L138 BoogieDeclarations]: Found implementation of procedure do_tx_done [2023-11-21 22:15:51,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_misc_lock_of_ns83820 [2023-11-21 22:15:51,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_misc_lock_of_ns83820 [2023-11-21 22:15:51,403 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-21 22:15:51,404 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-21 22:15:51,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-21 22:15:51,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-21 22:15:51,405 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2023-11-21 22:15:51,406 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2023-11-21 22:15:51,406 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-21 22:15:51,406 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-21 22:15:51,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:15:51,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:15:51,407 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_stop [2023-11-21 22:15:51,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_stop [2023-11-21 22:15:51,408 INFO L130 BoogieDeclarations]: Found specification of procedure kick_tx [2023-11-21 22:15:51,408 INFO L138 BoogieDeclarations]: Found implementation of procedure kick_tx [2023-11-21 22:15:51,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rx_info [2023-11-21 22:15:51,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rx_info [2023-11-21 22:15:51,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-21 22:15:51,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-21 22:15:51,415 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-11-21 22:15:51,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-11-21 22:15:51,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-21 22:15:51,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-21 22:15:51,416 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2023-11-21 22:15:51,422 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2023-11-21 22:15:51,423 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2023-11-21 22:15:51,423 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2023-11-21 22:15:51,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-21 22:15:51,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-21 22:15:51,424 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-21 22:15:51,424 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-21 22:15:51,424 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2023-11-21 22:15:51,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2023-11-21 22:15:51,425 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2023-11-21 22:15:51,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2023-11-21 22:15:51,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 22:15:51,425 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 22:15:51,425 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-21 22:15:51,426 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-21 22:15:51,426 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-21 22:15:51,426 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-21 22:15:51,426 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2023-11-21 22:15:51,426 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2023-11-21 22:15:51,426 INFO L130 BoogieDeclarations]: Found specification of procedure PRIV [2023-11-21 22:15:51,426 INFO L138 BoogieDeclarations]: Found implementation of procedure PRIV [2023-11-21 22:15:51,427 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2023-11-21 22:15:51,427 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2023-11-21 22:15:51,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:15:51,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_72 [2023-11-21 22:15:51,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_72 [2023-11-21 22:15:51,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:15:51,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 22:15:51,428 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 22:15:51,428 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 22:15:51,428 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-21 22:15:51,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-21 22:15:51,429 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2023-11-21 22:15:51,429 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2023-11-21 22:15:51,429 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-21 22:15:51,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-21 22:15:51,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-21 22:15:51,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-21 22:15:51,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-21 22:15:51,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-21 22:15:51,430 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-21 22:15:51,430 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-21 22:15:51,430 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-21 22:15:51,430 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-21 22:15:51,431 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-21 22:15:51,431 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-21 22:15:51,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_tx_lock_of_ns83820 [2023-11-21 22:15:51,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_tx_lock_of_ns83820 [2023-11-21 22:15:51,431 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2023-11-21 22:15:51,431 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2023-11-21 22:15:51,432 INFO L130 BoogieDeclarations]: Found specification of procedure build_rx_desc [2023-11-21 22:15:51,432 INFO L138 BoogieDeclarations]: Found implementation of procedure build_rx_desc [2023-11-21 22:15:51,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:15:51,432 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-21 22:15:51,432 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-21 22:15:51,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 22:15:51,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 22:15:51,433 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-21 22:15:51,433 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-21 22:15:51,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_misc_lock_of_ns83820 [2023-11-21 22:15:51,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_misc_lock_of_ns83820 [2023-11-21 22:15:51,433 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2023-11-21 22:15:51,434 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2023-11-21 22:15:51,434 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_open [2023-11-21 22:15:51,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_open [2023-11-21 22:15:51,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-21 22:15:51,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-21 22:15:51,434 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-11-21 22:15:51,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-11-21 22:15:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure rx_irq [2023-11-21 22:15:51,435 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_irq [2023-11-21 22:15:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure ns83820_disable_interrupts [2023-11-21 22:15:51,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ns83820_disable_interrupts [2023-11-21 22:15:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure kick_rx [2023-11-21 22:15:51,436 INFO L138 BoogieDeclarations]: Found implementation of procedure kick_rx [2023-11-21 22:15:51,436 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-21 22:15:51,436 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-21 22:15:51,436 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-21 22:15:51,436 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-21 22:15:51,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:15:51,437 INFO L130 BoogieDeclarations]: Found specification of procedure rx_refill [2023-11-21 22:15:51,437 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_refill [2023-11-21 22:15:51,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-21 22:15:51,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-21 22:15:51,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rx_info [2023-11-21 22:15:51,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rx_info [2023-11-21 22:15:51,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_ns83820 [2023-11-21 22:15:51,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_ns83820 [2023-11-21 22:15:52,331 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:15:52,336 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:15:52,574 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-21 22:15:56,551 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-21 22:15:56,825 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:16:03,119 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:16:03,119 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:16:03,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:16:03 BoogieIcfgContainer [2023-11-21 22:16:03,123 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:16:03,126 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:16:03,126 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:16:03,131 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:16:03,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:15:44" (1/3) ... [2023-11-21 22:16:03,134 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34ffd290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:16:03, skipping insertion in model container [2023-11-21 22:16:03,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:15:49" (2/3) ... [2023-11-21 22:16:03,134 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34ffd290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:16:03, skipping insertion in model container [2023-11-21 22:16:03,135 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:16:03" (3/3) ... [2023-11-21 22:16:03,136 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-ns83820.cil.i [2023-11-21 22:16:03,163 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:16:03,164 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-21 22:16:03,299 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:16:03,311 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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;@ea7e2de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:16:03,312 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-21 22:16:03,332 INFO L276 IsEmpty]: Start isEmpty. Operand has 1440 states, 798 states have (on average 1.2305764411027569) internal successors, (982), 830 states have internal predecessors, (982), 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) [2023-11-21 22:16:03,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-21 22:16:03,358 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:16:03,359 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:16:03,360 INFO L420 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)] === [2023-11-21 22:16:03,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:16:03,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1446781301, now seen corresponding path program 1 times [2023-11-21 22:16:03,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:16:03,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111032622] [2023-11-21 22:16:03,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:16:03,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:16:03,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:04,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:16:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:04,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:16:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:04,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 22:16:04,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:04,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:16:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:04,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-21 22:16:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:04,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:16:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:04,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-21 22:16:04,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:04,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:16:04,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:04,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-21 22:16:04,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:04,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:16:04,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:04,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-21 22:16:04,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:04,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:16:04,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:04,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-21 22:16:04,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:04,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:16:04,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:04,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-21 22:16:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:04,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-21 22:16:04,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:04,671 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2023-11-21 22:16:04,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:16:04,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111032622] [2023-11-21 22:16:04,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111032622] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:16:04,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:16:04,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:16:04,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122407314] [2023-11-21 22:16:04,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:16:04,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:16:04,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:16:04,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:16:04,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:16:04,726 INFO L87 Difference]: Start difference. First operand has 1440 states, 798 states have (on average 1.2305764411027569) internal successors, (982), 830 states have internal predecessors, (982), 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 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-21 22:16:14,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:16:14,652 INFO L93 Difference]: Finished difference Result 4347 states and 6371 transitions. [2023-11-21 22:16:14,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:16:14,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (12), 3 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 87 [2023-11-21 22:16:14,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:16:14,713 INFO L225 Difference]: With dead ends: 4347 [2023-11-21 22:16:14,714 INFO L226 Difference]: Without dead ends: 2912 [2023-11-21 22:16:14,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:16:14,738 INFO L413 NwaCegarLoop]: 1149 mSDtfsCounter, 2361 mSDsluCounter, 1256 mSDsCounter, 0 mSdLazyCounter, 2614 mSolverCounterSat, 1470 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2874 SdHoareTripleChecker+Valid, 2405 SdHoareTripleChecker+Invalid, 4084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1470 IncrementalHoareTripleChecker+Valid, 2614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:16:14,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2874 Valid, 2405 Invalid, 4084 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1470 Valid, 2614 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2023-11-21 22:16:14,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2912 states. [2023-11-21 22:16:15,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2912 to 2788. [2023-11-21 22:16:15,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2788 states, 1555 states have (on average 1.2244372990353698) internal successors, (1904), 1617 states have internal predecessors, (1904), 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) [2023-11-21 22:16:15,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2788 states to 2788 states and 3947 transitions. [2023-11-21 22:16:15,111 INFO L78 Accepts]: Start accepts. Automaton has 2788 states and 3947 transitions. Word has length 87 [2023-11-21 22:16:15,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:16:15,112 INFO L495 AbstractCegarLoop]: Abstraction has 2788 states and 3947 transitions. [2023-11-21 22:16:15,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-21 22:16:15,113 INFO L276 IsEmpty]: Start isEmpty. Operand 2788 states and 3947 transitions. [2023-11-21 22:16:15,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-21 22:16:15,131 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:16:15,132 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:16:15,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:16:15,133 INFO L420 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)] === [2023-11-21 22:16:15,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:16:15,134 INFO L85 PathProgramCache]: Analyzing trace with hash -113015976, now seen corresponding path program 1 times [2023-11-21 22:16:15,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:16:15,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640957264] [2023-11-21 22:16:15,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:16:15,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:16:15,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:15,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:16:15,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:15,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:16:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:15,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-21 22:16:15,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:15,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:16:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:15,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-21 22:16:15,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:15,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:16:15,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:15,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-21 22:16:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:15,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:16:15,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:15,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-21 22:16:15,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:15,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:16:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:15,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-21 22:16:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:15,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:16:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:15,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-21 22:16:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:15,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:16:15,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:15,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-21 22:16:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:15,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-21 22:16:15,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:15,787 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2023-11-21 22:16:15,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:16:15,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640957264] [2023-11-21 22:16:15,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640957264] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:16:15,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:16:15,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:16:15,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629332699] [2023-11-21 22:16:15,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:16:15,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:16:15,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:16:15,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:16:15,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:16:15,798 INFO L87 Difference]: Start difference. First operand 2788 states and 3947 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-21 22:16:25,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:16:25,347 INFO L93 Difference]: Finished difference Result 6379 states and 9068 transitions. [2023-11-21 22:16:25,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:16:25,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (14), 3 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 99 [2023-11-21 22:16:25,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:16:25,391 INFO L225 Difference]: With dead ends: 6379 [2023-11-21 22:16:25,392 INFO L226 Difference]: Without dead ends: 3606 [2023-11-21 22:16:25,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:16:25,411 INFO L413 NwaCegarLoop]: 1133 mSDtfsCounter, 1865 mSDsluCounter, 1223 mSDsCounter, 0 mSdLazyCounter, 2676 mSolverCounterSat, 1285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2279 SdHoareTripleChecker+Valid, 2356 SdHoareTripleChecker+Invalid, 3961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1285 IncrementalHoareTripleChecker+Valid, 2676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2023-11-21 22:16:25,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2279 Valid, 2356 Invalid, 3961 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1285 Valid, 2676 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2023-11-21 22:16:25,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3606 states. [2023-11-21 22:16:25,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3606 to 3419. [2023-11-21 22:16:25,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3419 states, 1910 states have (on average 1.2183246073298428) internal successors, (2327), 1990 states have internal predecessors, (2327), 1241 states have call successors, (1241), 266 states have call predecessors, (1241), 265 states have return successors, (1238), 1227 states have call predecessors, (1238), 1238 states have call successors, (1238) [2023-11-21 22:16:25,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3419 states to 3419 states and 4806 transitions. [2023-11-21 22:16:25,717 INFO L78 Accepts]: Start accepts. Automaton has 3419 states and 4806 transitions. Word has length 99 [2023-11-21 22:16:25,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:16:25,721 INFO L495 AbstractCegarLoop]: Abstraction has 3419 states and 4806 transitions. [2023-11-21 22:16:25,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-21 22:16:25,721 INFO L276 IsEmpty]: Start isEmpty. Operand 3419 states and 4806 transitions. [2023-11-21 22:16:25,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-21 22:16:25,725 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:16:25,725 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:16:25,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:16:25,726 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-21 22:16:25,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:16:25,727 INFO L85 PathProgramCache]: Analyzing trace with hash -2101042787, now seen corresponding path program 1 times [2023-11-21 22:16:25,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:16:25,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917964720] [2023-11-21 22:16:25,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:16:25,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:16:25,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat