./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b64704e9-aea0-4390-8d08-90d9cc317335/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b64704e9-aea0-4390-8d08-90d9cc317335/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b64704e9-aea0-4390-8d08-90d9cc317335/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b64704e9-aea0-4390-8d08-90d9cc317335/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b64704e9-aea0-4390-8d08-90d9cc317335/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b64704e9-aea0-4390-8d08-90d9cc317335/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 23f9845edcf139ee9434428d040789a6781b16714bf615b854712f008daec6fd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:24:56,348 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:24:56,430 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b64704e9-aea0-4390-8d08-90d9cc317335/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:24:56,436 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:24:56,436 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:24:56,462 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:24:56,462 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:24:56,463 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:24:56,464 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:24:56,464 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:24:56,465 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:24:56,465 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:24:56,466 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:24:56,466 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:24:56,467 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:24:56,467 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:24:56,468 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:24:56,468 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:24:56,469 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:24:56,469 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:24:56,470 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:24:56,478 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:24:56,479 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:24:56,485 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:24:56,485 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:24:56,486 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:24:56,486 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:24:56,486 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:24:56,487 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:24:56,487 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:24:56,487 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:24:56,488 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:24:56,488 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:24:56,489 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:24:56,490 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:24:56,490 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:24:56,490 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:24:56,491 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:24:56,491 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:24:56,492 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:24:56,492 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:24:56,493 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:24:56,493 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b64704e9-aea0-4390-8d08-90d9cc317335/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b64704e9-aea0-4390-8d08-90d9cc317335/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23f9845edcf139ee9434428d040789a6781b16714bf615b854712f008daec6fd [2023-11-19 05:24:56,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:24:56,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:24:56,813 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:24:56,814 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:24:56,815 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:24:56,816 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b64704e9-aea0-4390-8d08-90d9cc317335/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2023-11-19 05:24:59,835 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:25:00,554 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:25:00,555 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b64704e9-aea0-4390-8d08-90d9cc317335/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2023-11-19 05:25:00,600 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b64704e9-aea0-4390-8d08-90d9cc317335/bin/utaipan-verify-t7M7D8N6sZ/data/640707cde/9f7119964cc243bba3048d6b2313e4d4/FLAGf5ee56f8e [2023-11-19 05:25:00,615 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b64704e9-aea0-4390-8d08-90d9cc317335/bin/utaipan-verify-t7M7D8N6sZ/data/640707cde/9f7119964cc243bba3048d6b2313e4d4 [2023-11-19 05:25:00,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:25:00,619 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:25:00,620 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:25:00,620 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:25:00,625 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:25:00,626 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:25:00" (1/1) ... [2023-11-19 05:25:00,627 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b30cb91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:00, skipping insertion in model container [2023-11-19 05:25:00,627 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:25:00" (1/1) ... [2023-11-19 05:25:00,777 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:25:03,797 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_b64704e9-aea0-4390-8d08-90d9cc317335/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338234,338247] [2023-11-19 05:25:03,802 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_b64704e9-aea0-4390-8d08-90d9cc317335/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338403,338416] [2023-11-19 05:25:03,809 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_b64704e9-aea0-4390-8d08-90d9cc317335/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338570,338583] [2023-11-19 05:25:03,810 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_b64704e9-aea0-4390-8d08-90d9cc317335/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338738,338751] [2023-11-19 05:25:03,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:25:03,903 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:25:04,076 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"); [5347] [2023-11-19 05:25:04,078 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)); [5354] [2023-11-19 05:25:04,079 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5361] [2023-11-19 05:25:04,081 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/7cdfae59d3ac602223400f61d8829e28/klever-core-work-dir/520b8de/linux-kernel-locking-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5407-5408] [2023-11-19 05:25:04,081 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"); [5413-5415] [2023-11-19 05:25:04,083 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [5475] [2023-11-19 05:25:04,084 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [5478] [2023-11-19 05:25:04,085 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [5481] [2023-11-19 05:25:04,085 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [5484] [2023-11-19 05:25:04,095 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5582] [2023-11-19 05:25:04,095 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5590] [2023-11-19 05:25:04,096 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [5620] [2023-11-19 05:25:04,097 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inw %w1, %w0": "=a" (value): "Nd" (port)); [5628] [2023-11-19 05:25:04,097 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [5635] [2023-11-19 05:25:04,098 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [5643] [2023-11-19 05:25:04,102 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)); [5711-5712] [2023-11-19 05:25:04,106 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)); [5745-5746] [2023-11-19 05:25:04,369 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_b64704e9-aea0-4390-8d08-90d9cc317335/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338234,338247] [2023-11-19 05:25:04,369 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_b64704e9-aea0-4390-8d08-90d9cc317335/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338403,338416] [2023-11-19 05:25:04,370 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_b64704e9-aea0-4390-8d08-90d9cc317335/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338570,338583] [2023-11-19 05:25:04,370 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_b64704e9-aea0-4390-8d08-90d9cc317335/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i[338738,338751] [2023-11-19 05:25:04,381 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:25:04,599 WARN L675 CHandler]: The function __request_region is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:25:04,600 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:25:04,607 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:25:04,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:04 WrapperNode [2023-11-19 05:25:04,609 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:25:04,610 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:25:04,610 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:25:04,611 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:25:04,618 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:04" (1/1) ... [2023-11-19 05:25:04,729 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:04" (1/1) ... [2023-11-19 05:25:05,057 INFO L138 Inliner]: procedures = 431, calls = 2338, calls flagged for inlining = 196, calls inlined = 180, statements flattened = 6108 [2023-11-19 05:25:05,058 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:25:05,059 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:25:05,059 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:25:05,059 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:25:05,069 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:04" (1/1) ... [2023-11-19 05:25:05,069 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:04" (1/1) ... [2023-11-19 05:25:05,137 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:04" (1/1) ... [2023-11-19 05:25:05,139 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:04" (1/1) ... [2023-11-19 05:25:05,293 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:04" (1/1) ... [2023-11-19 05:25:05,323 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:04" (1/1) ... [2023-11-19 05:25:05,365 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:04" (1/1) ... [2023-11-19 05:25:05,383 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:04" (1/1) ... [2023-11-19 05:25:05,429 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:25:05,431 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:25:05,431 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:25:05,431 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:25:05,432 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:04" (1/1) ... [2023-11-19 05:25:05,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:25:05,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b64704e9-aea0-4390-8d08-90d9cc317335/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:25:05,462 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b64704e9-aea0-4390-8d08-90d9cc317335/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:25:05,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b64704e9-aea0-4390-8d08-90d9cc317335/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:25:05,513 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_resume [2023-11-19 05:25:05,513 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_resume [2023-11-19 05:25:05,515 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-19 05:25:05,516 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-19 05:25:05,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 05:25:05,516 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 05:25:05,517 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-19 05:25:05,517 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-19 05:25:05,517 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_write_reg [2023-11-19 05:25:05,517 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_write_reg [2023-11-19 05:25:05,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 05:25:05,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 05:25:05,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_3 [2023-11-19 05:25:05,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_3 [2023-11-19 05:25:05,518 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read8 [2023-11-19 05:25:05,518 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read8 [2023-11-19 05:25:05,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 05:25:05,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 05:25:05,519 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-19 05:25:05,519 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-19 05:25:05,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_63 [2023-11-19 05:25:05,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_63 [2023-11-19 05:25:05,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_tlan_priv [2023-11-19 05:25:05,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_tlan_priv [2023-11-19 05:25:05,520 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_read_and_clear_stats [2023-11-19 05:25:05,520 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_read_and_clear_stats [2023-11-19 05:25:05,520 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_sync [2023-11-19 05:25:05,521 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_sync [2023-11-19 05:25:05,521 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-19 05:25:05,521 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-19 05:25:05,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 05:25:05,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 05:25:05,521 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-19 05:25:05,522 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-19 05:25:05,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 05:25:05,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 05:25:05,522 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-19 05:25:05,523 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-19 05:25:05,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:25:05,524 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 05:25:05,524 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 05:25:05,524 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-19 05:25:05,525 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-19 05:25:05,525 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_lists [2023-11-19 05:25:05,525 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_lists [2023-11-19 05:25:05,525 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_close [2023-11-19 05:25:05,525 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_close [2023-11-19 05:25:05,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_65 [2023-11-19 05:25:05,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_65 [2023-11-19 05:25:05,526 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 05:25:05,527 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 05:25:05,527 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_print [2023-11-19 05:25:05,527 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_print [2023-11-19 05:25:05,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2023-11-19 05:25:05,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2023-11-19 05:25:05,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_tlan_priv [2023-11-19 05:25:05,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_tlan_priv [2023-11-19 05:25:05,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_unregister_driver [2023-11-19 05:25:05,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_unregister_driver [2023-11-19 05:25:05,528 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_probe1 [2023-11-19 05:25:05,529 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_probe1 [2023-11-19 05:25:05,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 05:25:05,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 05:25:05,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:25:05,529 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-19 05:25:05,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-19 05:25:05,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-19 05:25:05,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-19 05:25:05,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-19 05:25:05,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-19 05:25:05,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-19 05:25:05,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-19 05:25:05,531 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_timer [2023-11-19 05:25:05,531 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_timer [2023-11-19 05:25:05,531 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_timer [2023-11-19 05:25:05,531 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_timer [2023-11-19 05:25:05,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_3_2 [2023-11-19 05:25:05,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_3_2 [2023-11-19 05:25:05,532 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_stop [2023-11-19 05:25:05,532 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_stop [2023-11-19 05:25:05,532 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-19 05:25:05,532 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-19 05:25:05,533 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-19 05:25:05,533 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-19 05:25:05,533 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_remove_one [2023-11-19 05:25:05,533 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_remove_one [2023-11-19 05:25:05,533 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_get_skb [2023-11-19 05:25:05,534 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_get_skb [2023-11-19 05:25:05,534 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_byte [2023-11-19 05:25:05,534 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_byte [2023-11-19 05:25:05,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 05:25:05,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 05:25:05,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:25:05,535 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2023-11-19 05:25:05,535 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2023-11-19 05:25:05,535 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_poll [2023-11-19 05:25:05,535 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_poll [2023-11-19 05:25:05,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2023-11-19 05:25:05,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2023-11-19 05:25:05,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:25:05,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 05:25:05,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 05:25:05,536 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 05:25:05,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 05:25:05,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:25:05,537 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-19 05:25:05,537 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 05:25:05,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 05:25:05,537 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_free_lists [2023-11-19 05:25:05,538 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_free_lists [2023-11-19 05:25:05,538 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-19 05:25:05,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-19 05:25:05,538 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 05:25:05,538 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 05:25:05,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-19 05:25:05,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-19 05:25:05,539 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2023-11-19 05:25:05,539 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2023-11-19 05:25:05,539 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2023-11-19 05:25:05,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2023-11-19 05:25:05,540 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_store_skb [2023-11-19 05:25:05,540 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_store_skb [2023-11-19 05:25:05,540 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_tx_timeout [2023-11-19 05:25:05,540 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_tx_timeout [2023-11-19 05:25:05,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:25:05,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:25:05,541 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2023-11-19 05:25:05,541 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2023-11-19 05:25:05,542 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_power_up [2023-11-19 05:25:05,542 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_power_up [2023-11-19 05:25:05,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 05:25:05,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 05:25:05,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 05:25:05,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 05:25:05,543 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-19 05:25:05,543 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-19 05:25:05,543 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2023-11-19 05:25:05,543 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2023-11-19 05:25:05,543 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_handle_interrupt [2023-11-19 05:25:05,543 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_handle_interrupt [2023-11-19 05:25:05,543 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_start [2023-11-19 05:25:05,544 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_start [2023-11-19 05:25:05,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-19 05:25:05,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-19 05:25:05,544 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_finish_auto_neg [2023-11-19 05:25:05,544 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_finish_auto_neg [2023-11-19 05:25:05,544 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-19 05:25:05,544 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-19 05:25:05,545 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 05:25:05,545 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 05:25:05,545 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2023-11-19 05:25:05,545 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2023-11-19 05:25:05,545 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_start_link [2023-11-19 05:25:05,545 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_start_link [2023-11-19 05:25:05,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:25:05,545 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_multicast_list [2023-11-19 05:25:05,545 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_multicast_list [2023-11-19 05:25:05,545 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-19 05:25:05,546 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-19 05:25:05,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:25:05,546 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-19 05:25:05,546 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-19 05:25:05,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_8_2 [2023-11-19 05:25:05,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_8_2 [2023-11-19 05:25:05,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:25:05,546 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 05:25:05,546 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 05:25:05,547 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_print_list [2023-11-19 05:25:05,547 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_print_list [2023-11-19 05:25:05,547 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write16 [2023-11-19 05:25:05,547 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write16 [2023-11-19 05:25:05,547 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-11-19 05:25:05,547 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-11-19 05:25:05,547 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 05:25:05,547 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 05:25:05,547 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-19 05:25:05,548 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-19 05:25:05,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 05:25:05,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 05:25:05,548 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2023-11-19 05:25:05,548 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2023-11-19 05:25:05,548 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_finish_reset [2023-11-19 05:25:05,548 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_finish_reset [2023-11-19 05:25:05,549 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write32 [2023-11-19 05:25:05,549 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write32 [2023-11-19 05:25:05,549 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-19 05:25:05,549 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-19 05:25:05,549 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 05:25:05,549 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 05:25:05,550 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_mac [2023-11-19 05:25:05,550 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_mac [2023-11-19 05:25:05,550 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-11-19 05:25:05,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-11-19 05:25:05,550 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_start [2023-11-19 05:25:05,550 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_start [2023-11-19 05:25:05,551 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read32 [2023-11-19 05:25:05,551 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read32 [2023-11-19 05:25:05,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:25:05,551 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write8 [2023-11-19 05:25:05,551 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write8 [2023-11-19 05:25:05,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 05:25:05,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 05:25:05,552 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_power_down [2023-11-19 05:25:05,552 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_power_down [2023-11-19 05:25:05,552 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-11-19 05:25:05,552 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-11-19 05:25:05,553 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_adapter [2023-11-19 05:25:05,553 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_adapter [2023-11-19 05:25:05,553 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_send_data [2023-11-19 05:25:05,553 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_send_data [2023-11-19 05:25:05,553 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_reset [2023-11-19 05:25:05,553 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_reset [2023-11-19 05:25:05,554 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_read_reg [2023-11-19 05:25:05,554 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_read_reg [2023-11-19 05:25:05,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 05:25:05,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 05:25:05,554 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_open [2023-11-19 05:25:05,554 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_open [2023-11-19 05:25:05,555 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2023-11-19 05:25:05,555 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2023-11-19 05:25:05,555 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-19 05:25:05,555 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-19 05:25:05,555 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2023-11-19 05:25:05,555 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2023-11-19 05:25:05,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:25:05,556 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2023-11-19 05:25:05,556 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2023-11-19 05:25:05,556 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2023-11-19 05:25:05,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 05:25:05,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 05:25:05,557 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-11-19 05:25:05,557 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-11-19 05:25:05,557 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2023-11-19 05:25:05,557 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2023-11-19 05:25:06,457 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:25:06,462 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:25:07,700 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 05:25:11,409 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6942: assume 0 == (tlan_eisa_probe_~tmp___1~5#1.base + tlan_eisa_probe_~tmp___1~5#1.offset) % 18446744073709551616; [2023-11-19 05:25:11,409 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6942: assume !(0 == (tlan_eisa_probe_~tmp___1~5#1.base + tlan_eisa_probe_~tmp___1~5#1.offset) % 18446744073709551616); [2023-11-19 05:25:11,409 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L7042: assume tlan_eisa_probe_~ioaddr~0#1 <= 36863; [2023-11-19 05:25:11,409 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L7042: assume !(tlan_eisa_probe_~ioaddr~0#1 <= 36863); [2023-11-19 05:25:11,410 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6976-2: SUMMARY for call tlan_eisa_probe_#t~ret365#1 := inb((if (3264 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3264 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3264 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2023-11-19 05:25:11,410 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6976: assume 16 == ~debug~0; [2023-11-19 05:25:11,410 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6976: assume !(16 == ~debug~0); [2023-11-19 05:25:11,410 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6978: SUMMARY for call tlan_eisa_probe_#t~ret364#1 := printk(46, 0); srcloc: null [2023-11-19 05:25:11,410 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6978-1: assume -2147483648 <= tlan_eisa_probe_#t~ret364#1 && tlan_eisa_probe_#t~ret364#1 <= 2147483647;havoc tlan_eisa_probe_#t~ret364#1; [2023-11-19 05:25:11,410 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947-1: tlan_eisa_probe_~tmp___2~2#1 := tlan_eisa_probe_#t~ret361#1;havoc tlan_eisa_probe_#t~ret361#1; [2023-11-19 05:25:11,411 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6947: SUMMARY for call tlan_eisa_probe_#t~ret361#1 := inw((if (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2023-11-19 05:25:11,411 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6949: assume 4366 != tlan_eisa_probe_~tmp___2~2#1 % 65536 % 4294967296; [2023-11-19 05:25:11,411 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6949: assume !(4366 != tlan_eisa_probe_~tmp___2~2#1 % 65536 % 4294967296); [2023-11-19 05:25:11,411 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6983: tlan_eisa_probe_~tmp___4~0#1 := tlan_eisa_probe_#t~ret365#1;havoc tlan_eisa_probe_#t~ret365#1; [2023-11-19 05:25:11,411 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint tlan_eisa_probe_case_32#1: tlan_eisa_probe_~irq~0#1 := 9; [2023-11-19 05:25:11,411 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6951: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16); srcloc: null [2023-11-19 05:25:11,414 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6918-3: assume 0 != tlan_eisa_probe_#t~nondet352#1;havoc tlan_eisa_probe_#t~nondet352#1; [2023-11-19 05:25:11,415 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6918-3: assume !(0 != tlan_eisa_probe_#t~nondet352#1);havoc tlan_eisa_probe_#t~nondet352#1; [2023-11-19 05:25:11,415 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6918-1: assume 16 == ~debug~0;tlan_eisa_probe_#t~nondet352#1 := ~debug~0; [2023-11-19 05:25:11,415 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6918-1: assume !(16 == ~debug~0);assume ~debug~0 < 0 || tlan_eisa_probe_#t~nondet352#1 <= ~debug~0;assume tlan_eisa_probe_#t~nondet352#1 <= 16;assume tlan_eisa_probe_#t~nondet352#1 >= 0;assume ~debug~0 >= 0 || tlan_eisa_probe_#t~nondet352#1 > 16 + ~debug~0;assume tlan_eisa_probe_#t~nondet352#1 >= -2147483648; [2023-11-19 05:25:11,416 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6918-5: assume 0 == ~debug~0;tlan_eisa_probe_#t~nondet355#1 := 0; [2023-11-19 05:25:11,416 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6918-5: assume !(0 == ~debug~0); [2023-11-19 05:25:11,416 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6986: assume 16 == (if tlan_eisa_probe_~tmp___4~0#1 % 256 % 4294967296 <= 2147483647 then tlan_eisa_probe_~tmp___4~0#1 % 256 % 4294967296 else tlan_eisa_probe_~tmp___4~0#1 % 256 % 4294967296 - 4294967296); [2023-11-19 05:25:11,416 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6986: assume !(16 == (if tlan_eisa_probe_~tmp___4~0#1 % 256 % 4294967296 <= 2147483647 then tlan_eisa_probe_~tmp___4~0#1 % 256 % 4294967296 else tlan_eisa_probe_~tmp___4~0#1 % 256 % 4294967296 - 4294967296)); [2023-11-19 05:25:11,416 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6920-1: tlan_eisa_probe_~tmp~35#1 := tlan_eisa_probe_#t~ret353#1;havoc tlan_eisa_probe_#t~ret353#1; [2023-11-19 05:25:11,421 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6920: SUMMARY for call tlan_eisa_probe_#t~ret353#1 := inw((if (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2023-11-19 05:25:11,422 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6921-1: assume -2147483648 <= tlan_eisa_probe_#t~ret354#1 && tlan_eisa_probe_#t~ret354#1 <= 2147483647;havoc tlan_eisa_probe_#t~ret354#1; [2023-11-19 05:25:11,422 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6921: SUMMARY for call tlan_eisa_probe_#t~ret354#1 := printk(43, 0); srcloc: null [2023-11-19 05:25:11,422 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L7021: assume -2147483648 <= tlan_eisa_probe_#t~ret366#1 && tlan_eisa_probe_#t~ret366#1 <= 2147483647;tlan_eisa_probe_~rc~2#1 := tlan_eisa_probe_#t~ret366#1;havoc tlan_eisa_probe_#t~ret366#1; [2023-11-19 05:25:11,422 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint tlan_eisa_probe_case_64#1: tlan_eisa_probe_~irq~0#1 := 10; [2023-11-19 05:25:11,428 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6990: assume 32 == (if tlan_eisa_probe_~tmp___4~0#1 % 256 % 4294967296 <= 2147483647 then tlan_eisa_probe_~tmp___4~0#1 % 256 % 4294967296 else tlan_eisa_probe_~tmp___4~0#1 % 256 % 4294967296 - 4294967296); [2023-11-19 05:25:11,428 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6990: assume !(32 == (if tlan_eisa_probe_~tmp___4~0#1 % 256 % 4294967296 <= 2147483647 then tlan_eisa_probe_~tmp___4~0#1 % 256 % 4294967296 else tlan_eisa_probe_~tmp___4~0#1 % 256 % 4294967296 - 4294967296)); [2023-11-19 05:25:11,428 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6957-1: tlan_eisa_probe_~device_id~1#1 := tlan_eisa_probe_#t~ret362#1;havoc tlan_eisa_probe_#t~ret362#1; [2023-11-19 05:25:11,428 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6957: SUMMARY for call tlan_eisa_probe_#t~ret362#1 := inw((if (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2023-11-19 05:25:11,428 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6925-3: assume 0 != tlan_eisa_probe_#t~nondet355#1;havoc tlan_eisa_probe_#t~nondet355#1; [2023-11-19 05:25:11,429 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6925-3: assume !(0 != tlan_eisa_probe_#t~nondet355#1);havoc tlan_eisa_probe_#t~nondet355#1; [2023-11-19 05:25:11,429 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6925-1: assume 16 == ~debug~0;tlan_eisa_probe_#t~nondet355#1 := ~debug~0; [2023-11-19 05:25:11,429 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6925-1: assume !(16 == ~debug~0);assume ~debug~0 < 0 || tlan_eisa_probe_#t~nondet355#1 <= ~debug~0;assume tlan_eisa_probe_#t~nondet355#1 <= 16;assume tlan_eisa_probe_#t~nondet355#1 >= 0;assume ~debug~0 >= 0 || tlan_eisa_probe_#t~nondet355#1 > 16 + ~debug~0;assume tlan_eisa_probe_#t~nondet355#1 >= -2147483648; [2023-11-19 05:25:11,429 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6925-5: assume 0 == ~debug~0;tlan_eisa_probe_#t~nondet358#1 := 0; [2023-11-19 05:25:11,429 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6925-5: assume !(0 == ~debug~0); [2023-11-19 05:25:11,429 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6959: assume 8433 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296 && 16625 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296; [2023-11-19 05:25:11,429 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6959: assume !(8433 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296 && 16625 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296); [2023-11-19 05:25:11,430 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6927-1: tlan_eisa_probe_~tmp___0~12#1 := tlan_eisa_probe_#t~ret356#1;havoc tlan_eisa_probe_#t~ret356#1; [2023-11-19 05:25:11,430 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6927: SUMMARY for call tlan_eisa_probe_#t~ret356#1 := inw((if (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2023-11-19 05:25:11,430 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6994: assume 64 == (if tlan_eisa_probe_~tmp___4~0#1 % 256 % 4294967296 <= 2147483647 then tlan_eisa_probe_~tmp___4~0#1 % 256 % 4294967296 else tlan_eisa_probe_~tmp___4~0#1 % 256 % 4294967296 - 4294967296); [2023-11-19 05:25:11,430 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6994: assume !(64 == (if tlan_eisa_probe_~tmp___4~0#1 % 256 % 4294967296 <= 2147483647 then tlan_eisa_probe_~tmp___4~0#1 % 256 % 4294967296 else tlan_eisa_probe_~tmp___4~0#1 % 256 % 4294967296 - 4294967296)); [2023-11-19 05:25:11,430 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L7027-1: assume -2147483648 <= tlan_eisa_probe_#t~ret367#1 && tlan_eisa_probe_#t~ret367#1 <= 2147483647;havoc tlan_eisa_probe_#t~ret367#1; [2023-11-19 05:25:11,430 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L7027: SUMMARY for call tlan_eisa_probe_#t~ret367#1 := printk(47, 0); srcloc: null [2023-11-19 05:25:11,430 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6928-1: assume -2147483648 <= tlan_eisa_probe_#t~ret357#1 && tlan_eisa_probe_#t~ret357#1 <= 2147483647;havoc tlan_eisa_probe_#t~ret357#1; [2023-11-19 05:25:11,431 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6928: SUMMARY for call tlan_eisa_probe_#t~ret357#1 := printk(44, 0); srcloc: null [2023-11-19 05:25:11,431 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6961: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16); srcloc: null [2023-11-19 05:25:11,431 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##67: assume !(0 == ~debug~0); [2023-11-19 05:25:11,431 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##67: assume 0 == ~debug~0;tlan_eisa_probe_#t~nondet352#1 := 0; [2023-11-19 05:25:11,431 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint tlan_eisa_probe_case_16#1: tlan_eisa_probe_~irq~0#1 := 5; [2023-11-19 05:25:11,431 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6998: assume 128 == (if tlan_eisa_probe_~tmp___4~0#1 % 256 % 4294967296 <= 2147483647 then tlan_eisa_probe_~tmp___4~0#1 % 256 % 4294967296 else tlan_eisa_probe_~tmp___4~0#1 % 256 % 4294967296 - 4294967296); [2023-11-19 05:25:11,431 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6998: assume !(128 == (if tlan_eisa_probe_~tmp___4~0#1 % 256 % 4294967296 <= 2147483647 then tlan_eisa_probe_~tmp___4~0#1 % 256 % 4294967296 else tlan_eisa_probe_~tmp___4~0#1 % 256 % 4294967296 - 4294967296)); [2023-11-19 05:25:11,432 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6932-1: assume 16 == ~debug~0;tlan_eisa_probe_#t~nondet358#1 := ~debug~0; [2023-11-19 05:25:11,432 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6932-1: assume !(16 == ~debug~0);assume ~debug~0 < 0 || tlan_eisa_probe_#t~nondet358#1 <= ~debug~0;assume tlan_eisa_probe_#t~nondet358#1 <= 16;assume tlan_eisa_probe_#t~nondet358#1 >= 0;assume ~debug~0 >= 0 || tlan_eisa_probe_#t~nondet358#1 > 16 + ~debug~0;assume tlan_eisa_probe_#t~nondet358#1 >= -2147483648; [2023-11-19 05:25:11,432 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6932-5: call tlan_eisa_probe_#t~ret360#1.base, tlan_eisa_probe_#t~ret360#1.offset := __request_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16, ~#tlan_signature~0.base, ~#tlan_signature~0.offset, 0);tlan_eisa_probe_~tmp___1~5#1.base, tlan_eisa_probe_~tmp___1~5#1.offset := tlan_eisa_probe_#t~ret360#1.base, tlan_eisa_probe_#t~ret360#1.offset;havoc tlan_eisa_probe_#t~ret360#1.base, tlan_eisa_probe_#t~ret360#1.offset; [2023-11-19 05:25:11,432 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6932-3: assume 0 != tlan_eisa_probe_#t~nondet358#1;havoc tlan_eisa_probe_#t~nondet358#1; [2023-11-19 05:25:11,432 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6932-3: assume !(0 != tlan_eisa_probe_#t~nondet358#1);havoc tlan_eisa_probe_#t~nondet358#1; [2023-11-19 05:25:11,432 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint tlan_eisa_probe_case_128#1: tlan_eisa_probe_~irq~0#1 := 11; [2023-11-19 05:25:11,433 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6934: SUMMARY for call tlan_eisa_probe_#t~ret359#1 := printk(45, 0); srcloc: null [2023-11-19 05:25:11,433 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6967-1: tlan_eisa_probe_~tmp___3~1#1 := tlan_eisa_probe_#t~ret363#1;havoc tlan_eisa_probe_#t~ret363#1; [2023-11-19 05:25:11,434 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6967: SUMMARY for call tlan_eisa_probe_#t~ret363#1 := inb((if (3204 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3204 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3204 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2023-11-19 05:25:11,434 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L7033-1: tlan_eisa_probe_~ioaddr~0#1 := 4096 + tlan_eisa_probe_~ioaddr~0#1; [2023-11-19 05:25:11,434 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6934-1: assume -2147483648 <= tlan_eisa_probe_#t~ret359#1 && tlan_eisa_probe_#t~ret359#1 <= 2147483647;havoc tlan_eisa_probe_#t~ret359#1; [2023-11-19 05:25:11,435 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L7035-1: assume -2147483648 <= tlan_eisa_probe_#t~ret368#1 && tlan_eisa_probe_#t~ret368#1 <= 2147483647;havoc tlan_eisa_probe_#t~ret368#1; [2023-11-19 05:25:11,435 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L7035: SUMMARY for call tlan_eisa_probe_#t~ret368#1 := printk(48, 0); srcloc: null [2023-11-19 05:25:11,435 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6969: assume 1 != tlan_eisa_probe_~tmp___3~1#1 % 256 % 4294967296; [2023-11-19 05:25:11,435 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6969: assume !(1 != tlan_eisa_probe_~tmp___3~1#1 % 256 % 4294967296); [2023-11-19 05:25:11,435 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##113: assume !(16 == ~debug~0); [2023-11-19 05:25:11,435 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##113: assume 16 == ~debug~0; [2023-11-19 05:25:11,435 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##116: assume !(16 == ~debug~0); [2023-11-19 05:25:11,436 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##116: assume 16 == ~debug~0; [2023-11-19 05:25:11,436 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L6971: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16); srcloc: null [2023-11-19 05:25:11,436 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint tlan_eisa_probe_ldv_43702#1: SUMMARY for call tlan_eisa_probe_#t~ret366#1 := tlan_probe1(0, 0, tlan_eisa_probe_~ioaddr~0#1, tlan_eisa_probe_~irq~0#1, 12, 0, 0); srcloc: null [2023-11-19 05:25:11,606 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:25:16,043 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:25:16,043 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:25:16,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:25:16 BoogieIcfgContainer [2023-11-19 05:25:16,062 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:25:16,067 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:25:16,068 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:25:16,071 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:25:16,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:25:00" (1/3) ... [2023-11-19 05:25:16,073 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4740c706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:25:16, skipping insertion in model container [2023-11-19 05:25:16,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:25:04" (2/3) ... [2023-11-19 05:25:16,074 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4740c706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:25:16, skipping insertion in model container [2023-11-19 05:25:16,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:25:16" (3/3) ... [2023-11-19 05:25:16,075 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2023-11-19 05:25:16,095 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:25:16,095 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-19 05:25:16,204 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:25:16,211 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1cae3c36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:25:16,212 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-19 05:25:16,225 INFO L276 IsEmpty]: Start isEmpty. Operand has 1804 states, 1019 states have (on average 1.2306182531894014) internal successors, (1254), 1070 states have internal predecessors, (1254), 672 states have call successors, (672), 110 states have call predecessors, (672), 109 states have return successors, (668), 653 states have call predecessors, (668), 668 states have call successors, (668) [2023-11-19 05:25:16,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-19 05:25:16,240 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:25:16,240 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-11-19 05:25:16,241 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)] === [2023-11-19 05:25:16,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:25:16,248 INFO L85 PathProgramCache]: Analyzing trace with hash 951725103, now seen corresponding path program 1 times [2023-11-19 05:25:16,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:25:16,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284312638] [2023-11-19 05:25:16,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:25:16,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:25:16,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:25:17,444 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-19 05:25:17,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:25:17,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284312638] [2023-11-19 05:25:17,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284312638] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:25:17,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:25:17,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:25:17,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934044602] [2023-11-19 05:25:17,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:25:17,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:25:17,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:25:17,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:25:17,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:25:17,503 INFO L87 Difference]: Start difference. First operand has 1804 states, 1019 states have (on average 1.2306182531894014) internal successors, (1254), 1070 states have internal predecessors, (1254), 672 states have call successors, (672), 110 states have call predecessors, (672), 109 states have return successors, (668), 653 states have call predecessors, (668), 668 states have call successors, (668) Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 05:25:19,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:25:21,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:25:23,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:25:26,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:25:26,405 INFO L93 Difference]: Finished difference Result 3584 states and 5286 transitions. [2023-11-19 05:25:26,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:25:26,407 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 48 [2023-11-19 05:25:26,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:25:26,437 INFO L225 Difference]: With dead ends: 3584 [2023-11-19 05:25:26,437 INFO L226 Difference]: Without dead ends: 1797 [2023-11-19 05:25:26,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:25:26,465 INFO L413 NwaCegarLoop]: 2261 mSDtfsCounter, 2563 mSDsluCounter, 4508 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2575 SdHoareTripleChecker+Valid, 6769 SdHoareTripleChecker+Invalid, 996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2023-11-19 05:25:26,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2575 Valid, 6769 Invalid, 996 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 993 Invalid, 2 Unknown, 0 Unchecked, 8.5s Time] [2023-11-19 05:25:26,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1797 states. [2023-11-19 05:25:26,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1797 to 1797. [2023-11-19 05:25:26,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1797 states, 1017 states have (on average 1.2251720747295969) internal successors, (1246), 1067 states have internal predecessors, (1246), 668 states have call successors, (668), 110 states have call predecessors, (668), 109 states have return successors, (665), 650 states have call predecessors, (665), 665 states have call successors, (665) [2023-11-19 05:25:26,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1797 states to 1797 states and 2579 transitions. [2023-11-19 05:25:26,696 INFO L78 Accepts]: Start accepts. Automaton has 1797 states and 2579 transitions. Word has length 48 [2023-11-19 05:25:26,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:25:26,698 INFO L495 AbstractCegarLoop]: Abstraction has 1797 states and 2579 transitions. [2023-11-19 05:25:26,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 05:25:26,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1797 states and 2579 transitions. [2023-11-19 05:25:26,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-19 05:25:26,710 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:25:26,711 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-11-19 05:25:26,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:25:26,714 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-19 05:25:26,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:25:26,714 INFO L85 PathProgramCache]: Analyzing trace with hash -131971072, now seen corresponding path program 1 times [2023-11-19 05:25:26,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:25:26,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532857160] [2023-11-19 05:25:26,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:25:26,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:25:26,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:25:27,434 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-19 05:25:27,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:25:27,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532857160] [2023-11-19 05:25:27,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532857160] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:25:27,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:25:27,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:25:27,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132491723] [2023-11-19 05:25:27,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:25:27,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:25:27,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:25:27,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:25:27,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:25:27,440 INFO L87 Difference]: Start difference. First operand 1797 states and 2579 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 05:25:29,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:25:31,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:25:33,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:25:36,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:25:36,962 INFO L93 Difference]: Finished difference Result 1803 states and 2584 transitions. [2023-11-19 05:25:36,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:25:36,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 53 [2023-11-19 05:25:36,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:25:36,979 INFO L225 Difference]: With dead ends: 1803 [2023-11-19 05:25:36,979 INFO L226 Difference]: Without dead ends: 1801 [2023-11-19 05:25:36,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:25:36,982 INFO L413 NwaCegarLoop]: 2251 mSDtfsCounter, 2546 mSDsluCounter, 4482 mSDsCounter, 0 mSdLazyCounter, 992 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2556 SdHoareTripleChecker+Valid, 6733 SdHoareTripleChecker+Invalid, 996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 992 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:25:36,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2556 Valid, 6733 Invalid, 996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 992 Invalid, 3 Unknown, 0 Unchecked, 9.2s Time] [2023-11-19 05:25:36,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2023-11-19 05:25:37,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1801. [2023-11-19 05:25:37,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1801 states, 1020 states have (on average 1.2245098039215687) internal successors, (1249), 1070 states have internal predecessors, (1249), 668 states have call successors, (668), 111 states have call predecessors, (668), 110 states have return successors, (665), 650 states have call predecessors, (665), 665 states have call successors, (665) [2023-11-19 05:25:37,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1801 states to 1801 states and 2582 transitions. [2023-11-19 05:25:37,177 INFO L78 Accepts]: Start accepts. Automaton has 1801 states and 2582 transitions. Word has length 53 [2023-11-19 05:25:37,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:25:37,178 INFO L495 AbstractCegarLoop]: Abstraction has 1801 states and 2582 transitions. [2023-11-19 05:25:37,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-19 05:25:37,179 INFO L276 IsEmpty]: Start isEmpty. Operand 1801 states and 2582 transitions. [2023-11-19 05:25:37,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 05:25:37,187 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:25:37,187 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:25:37,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:25:37,187 INFO L420 AbstractCegarLoop]: === Iteration 3 === 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)] === [2023-11-19 05:25:37,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:25:37,197 INFO L85 PathProgramCache]: Analyzing trace with hash 290782863, now seen corresponding path program 1 times [2023-11-19 05:25:37,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:25:37,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012760880] [2023-11-19 05:25:37,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:25:37,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:25:37,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:25:37,752 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-19 05:25:37,752 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:25:37,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012760880] [2023-11-19 05:25:37,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012760880] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:25:37,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:25:37,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:25:37,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543561674] [2023-11-19 05:25:37,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:25:37,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:25:37,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:25:37,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:25:37,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:25:37,757 INFO L87 Difference]: Start difference. First operand 1801 states and 2582 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-19 05:25:40,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:25:42,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:25:44,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:25:46,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:25:46,946 INFO L93 Difference]: Finished difference Result 1807 states and 2587 transitions. [2023-11-19 05:25:46,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:25:46,947 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 58 [2023-11-19 05:25:46,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:25:46,962 INFO L225 Difference]: With dead ends: 1807 [2023-11-19 05:25:46,963 INFO L226 Difference]: Without dead ends: 1805 [2023-11-19 05:25:46,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:25:46,967 INFO L413 NwaCegarLoop]: 2251 mSDtfsCounter, 2546 mSDsluCounter, 4482 mSDsCounter, 0 mSdLazyCounter, 992 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2555 SdHoareTripleChecker+Valid, 6733 SdHoareTripleChecker+Invalid, 996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 992 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2023-11-19 05:25:46,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2555 Valid, 6733 Invalid, 996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 992 Invalid, 3 Unknown, 0 Unchecked, 8.8s Time] [2023-11-19 05:25:46,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1805 states. [2023-11-19 05:25:47,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1805 to 1805. [2023-11-19 05:25:47,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1805 states, 1023 states have (on average 1.2238514173998045) internal successors, (1252), 1073 states have internal predecessors, (1252), 668 states have call successors, (668), 112 states have call predecessors, (668), 111 states have return successors, (665), 650 states have call predecessors, (665), 665 states have call successors, (665) [2023-11-19 05:25:47,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1805 states to 1805 states and 2585 transitions. [2023-11-19 05:25:47,112 INFO L78 Accepts]: Start accepts. Automaton has 1805 states and 2585 transitions. Word has length 58 [2023-11-19 05:25:47,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:25:47,114 INFO L495 AbstractCegarLoop]: Abstraction has 1805 states and 2585 transitions. [2023-11-19 05:25:47,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-19 05:25:47,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1805 states and 2585 transitions. [2023-11-19 05:25:47,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-19 05:25:47,116 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:25:47,116 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 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] [2023-11-19 05:25:47,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 05:25:47,116 INFO L420 AbstractCegarLoop]: === Iteration 4 === 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)] === [2023-11-19 05:25:47,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:25:47,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1029215439, now seen corresponding path program 1 times [2023-11-19 05:25:47,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:25:47,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502801042] [2023-11-19 05:25:47,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:25:47,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:25:47,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:25:47,538 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-19 05:25:47,542 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:25:47,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502801042] [2023-11-19 05:25:47,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502801042] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:25:47,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:25:47,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:25:47,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102960994] [2023-11-19 05:25:47,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:25:47,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:25:47,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:25:47,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:25:47,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:25:47,544 INFO L87 Difference]: Start difference. First operand 1805 states and 2585 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 05:25:49,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []