./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_9ae53312-a236-4636-a90b-f63289fcd167/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae53312-a236-4636-a90b-f63289fcd167/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae53312-a236-4636-a90b-f63289fcd167/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae53312-a236-4636-a90b-f63289fcd167/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae53312-a236-4636-a90b-f63289fcd167/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae53312-a236-4636-a90b-f63289fcd167/bin/utaipan-verify-QoSU8krkJ5 --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 e373372610053a8b3f90a6fe69a2e2f77f1b445737e9545423fdaf4f64c3f09c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:33:59,906 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:34:00,004 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae53312-a236-4636-a90b-f63289fcd167/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-21 19:34:00,010 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:34:00,011 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:34:00,051 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:34:00,052 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:34:00,053 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:34:00,054 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:34:00,058 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:34:00,059 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:34:00,060 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:34:00,060 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:34:00,062 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:34:00,062 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:34:00,063 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:34:00,063 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:34:00,064 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:34:00,064 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:34:00,065 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:34:00,065 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:34:00,065 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:34:00,067 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:34:00,067 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:34:00,067 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:34:00,068 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:34:00,068 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:34:00,069 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:34:00,069 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:34:00,069 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:34:00,071 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:34:00,071 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:34:00,071 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:34:00,072 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:34:00,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:34:00,072 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:34:00,072 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:34:00,073 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:34:00,073 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:34:00,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:34:00,074 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:34:00,074 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:34:00,074 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:34:00,075 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:34:00,075 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_9ae53312-a236-4636-a90b-f63289fcd167/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae53312-a236-4636-a90b-f63289fcd167/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e373372610053a8b3f90a6fe69a2e2f77f1b445737e9545423fdaf4f64c3f09c [2023-11-21 19:34:00,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:34:00,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:34:00,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:34:00,405 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:34:00,406 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:34:00,407 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae53312-a236-4636-a90b-f63289fcd167/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i [2023-11-21 19:34:03,694 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:34:04,453 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:34:04,454 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae53312-a236-4636-a90b-f63289fcd167/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i [2023-11-21 19:34:04,512 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae53312-a236-4636-a90b-f63289fcd167/bin/utaipan-verify-QoSU8krkJ5/data/c30003f02/bee95c0b5c3a4237b89eb03b17786b97/FLAGea3b4e569 [2023-11-21 19:34:04,532 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae53312-a236-4636-a90b-f63289fcd167/bin/utaipan-verify-QoSU8krkJ5/data/c30003f02/bee95c0b5c3a4237b89eb03b17786b97 [2023-11-21 19:34:04,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:34:04,548 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:34:04,552 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:34:04,552 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:34:04,558 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:34:04,559 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:34:04" (1/1) ... [2023-11-21 19:34:04,560 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48d0a7fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:04, skipping insertion in model container [2023-11-21 19:34:04,561 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:34:04" (1/1) ... [2023-11-21 19:34:04,772 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:34:07,702 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_9ae53312-a236-4636-a90b-f63289fcd167/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[330704,330717] [2023-11-21 19:34:07,714 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_9ae53312-a236-4636-a90b-f63289fcd167/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[330873,330886] [2023-11-21 19:34:07,715 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_9ae53312-a236-4636-a90b-f63289fcd167/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[331040,331053] [2023-11-21 19:34:07,716 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_9ae53312-a236-4636-a90b-f63289fcd167/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[331208,331221] [2023-11-21 19:34:07,747 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:34:07,785 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:34:07,923 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"); [5240] [2023-11-21 19:34:07,925 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)); [5247] [2023-11-21 19:34:07,933 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5254] [2023-11-21 19:34:07,935 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/f860c18/linux-kernel-locking-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5292-5293] [2023-11-21 19:34:07,936 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"); [5298-5300] [2023-11-21 19:34:07,943 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)); [5478-5479] [2023-11-21 19:34:07,945 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)); [5512-5513] [2023-11-21 19:34:07,947 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" (103), "i" (12UL)); [5549-5550] [2023-11-21 19:34:07,949 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" (115), "i" (12UL)); [5586-5587] [2023-11-21 19:34:08,282 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_9ae53312-a236-4636-a90b-f63289fcd167/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[330704,330717] [2023-11-21 19:34:08,283 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_9ae53312-a236-4636-a90b-f63289fcd167/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[330873,330886] [2023-11-21 19:34:08,283 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_9ae53312-a236-4636-a90b-f63289fcd167/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[331040,331053] [2023-11-21 19:34:08,284 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_9ae53312-a236-4636-a90b-f63289fcd167/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[331208,331221] [2023-11-21 19:34:08,294 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:34:08,486 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:34:08,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:08 WrapperNode [2023-11-21 19:34:08,486 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:34:08,487 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:34:08,487 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:34:08,487 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:34:08,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:08" (1/1) ... [2023-11-21 19:34:08,661 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:08" (1/1) ... [2023-11-21 19:34:08,862 INFO L138 Inliner]: procedures = 423, calls = 1900, calls flagged for inlining = 204, calls inlined = 187, statements flattened = 5630 [2023-11-21 19:34:08,863 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:34:08,864 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:34:08,864 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:34:08,864 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:34:08,873 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:08" (1/1) ... [2023-11-21 19:34:08,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:08" (1/1) ... [2023-11-21 19:34:08,909 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:08" (1/1) ... [2023-11-21 19:34:08,909 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:08" (1/1) ... [2023-11-21 19:34:09,055 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:08" (1/1) ... [2023-11-21 19:34:09,094 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:08" (1/1) ... [2023-11-21 19:34:09,125 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:08" (1/1) ... [2023-11-21 19:34:09,150 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:08" (1/1) ... [2023-11-21 19:34:09,195 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:34:09,196 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:34:09,196 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:34:09,196 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:34:09,197 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:08" (1/1) ... [2023-11-21 19:34:09,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:34:09,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae53312-a236-4636-a90b-f63289fcd167/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:34:09,231 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae53312-a236-4636-a90b-f63289fcd167/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:34:09,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ae53312-a236-4636-a90b-f63289fcd167/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:34:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-21 19:34:09,269 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-21 19:34:09,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-21 19:34:09,322 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-21 19:34:09,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 19:34:09,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 19:34:09,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-21 19:34:09,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-21 19:34:09,322 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-21 19:34:09,323 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-21 19:34:09,323 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-21 19:34:09,323 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-21 19:34:09,323 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2023-11-21 19:34:09,323 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2023-11-21 19:34:09,323 INFO L130 BoogieDeclarations]: Found specification of procedure desc_to_dma [2023-11-21 19:34:09,323 INFO L138 BoogieDeclarations]: Found implementation of procedure desc_to_dma [2023-11-21 19:34:09,323 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-21 19:34:09,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-21 19:34:09,323 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2023-11-21 19:34:09,324 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2023-11-21 19:34:09,324 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-21 19:34:09,324 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-21 19:34:09,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-21 19:34:09,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-21 19:34:09,324 INFO L130 BoogieDeclarations]: Found specification of procedure mii_write [2023-11-21 19:34:09,324 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_write [2023-11-21 19:34:09,324 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-21 19:34:09,324 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-21 19:34:09,324 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-21 19:34:09,324 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-21 19:34:09,325 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-21 19:34:09,325 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-21 19:34:09,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-21 19:34:09,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-21 19:34:09,325 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-21 19:34:09,325 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-21 19:34:09,325 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast [2023-11-21 19:34:09,325 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast [2023-11-21 19:34:09,325 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-21 19:34:09,325 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-21 19:34:09,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:34:09,326 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2023-11-21 19:34:09,326 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2023-11-21 19:34:09,326 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-21 19:34:09,326 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-21 19:34:09,326 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-21 19:34:09,326 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-21 19:34:09,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-21 19:34:09,326 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-21 19:34:09,326 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-21 19:34:09,326 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-21 19:34:09,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-21 19:34:09,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 19:34:09,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-21 19:34:09,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-21 19:34:09,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 19:34:09,327 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-21 19:34:09,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-21 19:34:09,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-21 19:34:09,327 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-21 19:34:09,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-21 19:34:09,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-21 19:34:09,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-21 19:34:09,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-21 19:34:09,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-21 19:34:09,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-21 19:34:09,328 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-21 19:34:09,328 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-21 19:34:09,328 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-21 19:34:09,328 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-21 19:34:09,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-21 19:34:09,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-21 19:34:09,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 19:34:09,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-21 19:34:09,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-21 19:34:09,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-21 19:34:09,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-21 19:34:09,331 INFO L130 BoogieDeclarations]: Found specification of procedure rio_close [2023-11-21 19:34:09,331 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_close [2023-11-21 19:34:09,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:34:09,332 INFO L130 BoogieDeclarations]: Found specification of procedure mii_getbit [2023-11-21 19:34:09,332 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_getbit [2023-11-21 19:34:09,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-21 19:34:09,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-21 19:34:09,332 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-21 19:34:09,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-21 19:34:09,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 19:34:09,333 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-21 19:34:09,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-21 19:34:09,333 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 19:34:09,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 19:34:09,333 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-21 19:34:09,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-21 19:34:09,333 INFO L130 BoogieDeclarations]: Found specification of procedure mii_read [2023-11-21 19:34:09,334 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_read [2023-11-21 19:34:09,334 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-21 19:34:09,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-21 19:34:09,334 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-21 19:34:09,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-21 19:34:09,334 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-21 19:34:09,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-21 19:34:09,335 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-21 19:34:09,335 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-21 19:34:09,335 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-21 19:34:09,335 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-21 19:34:09,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-21 19:34:09,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-21 19:34:09,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:34:09,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:34:09,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 19:34:09,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 19:34:09,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-21 19:34:09,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-21 19:34:09,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-21 19:34:09,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-21 19:34:09,337 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-21 19:34:09,337 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-21 19:34:09,337 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats [2023-11-21 19:34:09,337 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats [2023-11-21 19:34:09,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-21 19:34:09,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-21 19:34:09,338 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-21 19:34:09,338 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-21 19:34:09,338 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2023-11-21 19:34:09,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2023-11-21 19:34:09,338 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-21 19:34:09,338 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-21 19:34:09,339 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2023-11-21 19:34:09,339 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2023-11-21 19:34:09,339 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-21 19:34:09,339 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-21 19:34:09,339 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-21 19:34:09,339 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-21 19:34:09,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:34:09,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_tx_lock_of_netdev_private [2023-11-21 19:34:09,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_tx_lock_of_netdev_private [2023-11-21 19:34:09,340 INFO L130 BoogieDeclarations]: Found specification of procedure rio_open [2023-11-21 19:34:09,341 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_open [2023-11-21 19:34:09,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 19:34:09,342 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-21 19:34:09,342 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-21 19:34:09,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_netdev_private [2023-11-21 19:34:09,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_netdev_private [2023-11-21 19:34:09,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 19:34:09,343 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 19:34:09,343 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 19:34:09,343 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-21 19:34:09,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-21 19:34:09,344 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-21 19:34:09,344 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-21 19:34:09,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-21 19:34:09,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-21 19:34:09,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_rx_lock_of_netdev_private [2023-11-21 19:34:09,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_rx_lock_of_netdev_private [2023-11-21 19:34:09,345 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-21 19:34:09,358 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-21 19:34:09,358 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-21 19:34:09,359 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-21 19:34:09,359 INFO L130 BoogieDeclarations]: Found specification of procedure rio_free_tx [2023-11-21 19:34:09,359 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_free_tx [2023-11-21 19:34:09,359 INFO L130 BoogieDeclarations]: Found specification of procedure rio_tx_timeout [2023-11-21 19:34:09,359 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_tx_timeout [2023-11-21 19:34:09,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_rx_lock_of_netdev_private [2023-11-21 19:34:09,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_rx_lock_of_netdev_private [2023-11-21 19:34:09,360 INFO L130 BoogieDeclarations]: Found specification of procedure rio_remove1 [2023-11-21 19:34:09,360 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_remove1 [2023-11-21 19:34:09,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 19:34:09,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 19:34:09,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 19:34:09,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rio_driver_exit_14_2 [2023-11-21 19:34:09,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rio_driver_exit_14_2 [2023-11-21 19:34:09,362 INFO L130 BoogieDeclarations]: Found specification of procedure mii_send_bits [2023-11-21 19:34:09,362 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_send_bits [2023-11-21 19:34:09,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-21 19:34:09,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-21 19:34:09,364 INFO L130 BoogieDeclarations]: Found specification of procedure mii_set_media [2023-11-21 19:34:09,364 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_set_media [2023-11-21 19:34:09,365 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-21 19:34:09,366 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-21 19:34:09,366 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-21 19:34:09,366 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-21 19:34:09,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:34:09,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-21 19:34:09,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-21 19:34:10,139 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:34:10,144 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:34:10,224 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-21 19:34:14,283 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-21 19:34:14,425 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:34:18,639 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:34:18,640 INFO L308 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-21 19:34:18,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:34:18 BoogieIcfgContainer [2023-11-21 19:34:18,643 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:34:18,647 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:34:18,647 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:34:18,650 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:34:18,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:34:04" (1/3) ... [2023-11-21 19:34:18,652 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48838c16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:34:18, skipping insertion in model container [2023-11-21 19:34:18,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:34:08" (2/3) ... [2023-11-21 19:34:18,653 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48838c16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:34:18, skipping insertion in model container [2023-11-21 19:34:18,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:34:18" (3/3) ... [2023-11-21 19:34:18,656 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i [2023-11-21 19:34:18,678 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:34:18,678 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-21 19:34:18,780 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:34:18,788 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;@70434ae7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:34:18,788 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-21 19:34:18,802 INFO L276 IsEmpty]: Start isEmpty. Operand has 1486 states, 875 states have (on average 1.2765714285714285) internal successors, (1117), 906 states have internal predecessors, (1117), 530 states have call successors, (530), 84 states have call predecessors, (530), 83 states have return successors, (524), 521 states have call predecessors, (524), 524 states have call successors, (524) [2023-11-21 19:34:18,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-21 19:34:18,839 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:34:18,840 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:34:18,841 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-21 19:34:18,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:34:18,848 INFO L85 PathProgramCache]: Analyzing trace with hash 79319435, now seen corresponding path program 1 times [2023-11-21 19:34:18,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:34:18,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765243867] [2023-11-21 19:34:18,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:34:18,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:34:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:34:19,865 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-21 19:34:19,866 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:34:19,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765243867] [2023-11-21 19:34:19,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765243867] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:34:19,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:34:19,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:34:19,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910916937] [2023-11-21 19:34:19,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:34:19,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:34:19,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:34:19,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:34:19,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:34:19,915 INFO L87 Difference]: Start difference. First operand has 1486 states, 875 states have (on average 1.2765714285714285) internal successors, (1117), 906 states have internal predecessors, (1117), 530 states have call successors, (530), 84 states have call predecessors, (530), 83 states have return successors, (524), 521 states have call predecessors, (524), 524 states have call successors, (524) Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-21 19:34:23,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:34:26,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:34:28,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:34:28,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:34:28,857 INFO L93 Difference]: Finished difference Result 4315 states and 6358 transitions. [2023-11-21 19:34:28,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:34:28,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 111 [2023-11-21 19:34:28,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:34:28,917 INFO L225 Difference]: With dead ends: 4315 [2023-11-21 19:34:28,917 INFO L226 Difference]: Without dead ends: 2838 [2023-11-21 19:34:28,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:34:28,937 INFO L413 NwaCegarLoop]: 1846 mSDtfsCounter, 2022 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2022 SdHoareTripleChecker+Valid, 3648 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2023-11-21 19:34:28,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2022 Valid, 3648 Invalid, 622 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 612 Invalid, 3 Unknown, 0 Unchecked, 8.5s Time] [2023-11-21 19:34:28,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2838 states. [2023-11-21 19:34:29,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2838 to 2834. [2023-11-21 19:34:29,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2834 states, 1673 states have (on average 1.269575612671847) internal successors, (2124), 1728 states have internal predecessors, (2124), 996 states have call successors, (996), 163 states have call predecessors, (996), 162 states have return successors, (992), 986 states have call predecessors, (992), 992 states have call successors, (992) [2023-11-21 19:34:29,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2834 states to 2834 states and 4112 transitions. [2023-11-21 19:34:29,286 INFO L78 Accepts]: Start accepts. Automaton has 2834 states and 4112 transitions. Word has length 111 [2023-11-21 19:34:29,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:34:29,291 INFO L495 AbstractCegarLoop]: Abstraction has 2834 states and 4112 transitions. [2023-11-21 19:34:29,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-21 19:34:29,292 INFO L276 IsEmpty]: Start isEmpty. Operand 2834 states and 4112 transitions. [2023-11-21 19:34:29,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-21 19:34:29,301 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:34:29,302 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:34:29,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 19:34:29,302 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-21 19:34:29,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:34:29,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1640002503, now seen corresponding path program 1 times [2023-11-21 19:34:29,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:34:29,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257957555] [2023-11-21 19:34:29,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:34:29,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:34:29,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:34:29,687 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-11-21 19:34:29,688 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:34:29,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257957555] [2023-11-21 19:34:29,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257957555] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:34:29,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:34:29,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:34:29,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565574989] [2023-11-21 19:34:29,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:34:29,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:34:29,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:34:29,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:34:29,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:34:29,693 INFO L87 Difference]: Start difference. First operand 2834 states and 4112 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-21 19:34:34,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:34:36,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:34:38,289 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 [] [2023-11-21 19:34:39,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:34:39,350 INFO L93 Difference]: Finished difference Result 8336 states and 12094 transitions. [2023-11-21 19:34:39,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:34:39,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 115 [2023-11-21 19:34:39,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:34:39,413 INFO L225 Difference]: With dead ends: 8336 [2023-11-21 19:34:39,413 INFO L226 Difference]: Without dead ends: 5521 [2023-11-21 19:34:39,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:34:39,434 INFO L413 NwaCegarLoop]: 1867 mSDtfsCounter, 2038 mSDsluCounter, 1765 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2038 SdHoareTripleChecker+Valid, 3632 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2023-11-21 19:34:39,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2038 Valid, 3632 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 604 Invalid, 3 Unknown, 0 Unchecked, 9.2s Time] [2023-11-21 19:34:39,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5521 states. [2023-11-21 19:34:39,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5521 to 5491. [2023-11-21 19:34:39,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5491 states, 3252 states have (on average 1.270910209102091) internal successors, (4133), 3364 states have internal predecessors, (4133), 1915 states have call successors, (1915), 324 states have call predecessors, (1915), 321 states have return successors, (1921), 1888 states have call predecessors, (1921), 1911 states have call successors, (1921) [2023-11-21 19:34:39,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5491 states to 5491 states and 7969 transitions. [2023-11-21 19:34:39,864 INFO L78 Accepts]: Start accepts. Automaton has 5491 states and 7969 transitions. Word has length 115 [2023-11-21 19:34:39,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:34:39,865 INFO L495 AbstractCegarLoop]: Abstraction has 5491 states and 7969 transitions. [2023-11-21 19:34:39,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-21 19:34:39,868 INFO L276 IsEmpty]: Start isEmpty. Operand 5491 states and 7969 transitions. [2023-11-21 19:34:39,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-21 19:34:39,878 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:34:39,878 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:34:39,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 19:34:39,879 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-21 19:34:39,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:34:39,889 INFO L85 PathProgramCache]: Analyzing trace with hash 2026701482, now seen corresponding path program 1 times [2023-11-21 19:34:39,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:34:39,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225681480] [2023-11-21 19:34:39,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:34:39,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:34:39,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:34:40,328 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2023-11-21 19:34:40,328 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:34:40,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225681480] [2023-11-21 19:34:40,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225681480] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:34:40,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:34:40,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:34:40,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431494843] [2023-11-21 19:34:40,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:34:40,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:34:40,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:34:40,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:34:40,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:34:40,334 INFO L87 Difference]: Start difference. First operand 5491 states and 7969 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-21 19:34:44,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:34:47,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:34:49,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:34:51,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-21 19:34:52,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:34:52,398 INFO L93 Difference]: Finished difference Result 15241 states and 22057 transitions. [2023-11-21 19:34:52,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:34:52,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 131 [2023-11-21 19:34:52,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:34:52,516 INFO L225 Difference]: With dead ends: 15241 [2023-11-21 19:34:52,516 INFO L226 Difference]: Without dead ends: 9769 [2023-11-21 19:34:52,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:34:52,559 INFO L413 NwaCegarLoop]: 2019 mSDtfsCounter, 1663 mSDsluCounter, 1758 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 6 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1663 SdHoareTripleChecker+Valid, 3777 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2023-11-21 19:34:52,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1663 Valid, 3777 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 620 Invalid, 4 Unknown, 0 Unchecked, 11.4s Time] [2023-11-21 19:34:52,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9769 states. [2023-11-21 19:34:53,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9769 to 9735. [2023-11-21 19:34:53,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9735 states, 5736 states have (on average 1.2679567642956764) internal successors, (7273), 5944 states have internal predecessors, (7273), 3373 states have call successors, (3373), 630 states have call predecessors, (3373), 623 states have return successors, (3415), 3310 states have call predecessors, (3415), 3369 states have call successors, (3415) [2023-11-21 19:34:53,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9735 states to 9735 states and 14061 transitions. [2023-11-21 19:34:53,503 INFO L78 Accepts]: Start accepts. Automaton has 9735 states and 14061 transitions. Word has length 131 [2023-11-21 19:34:53,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:34:53,506 INFO L495 AbstractCegarLoop]: Abstraction has 9735 states and 14061 transitions. [2023-11-21 19:34:53,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-21 19:34:53,508 INFO L276 IsEmpty]: Start isEmpty. Operand 9735 states and 14061 transitions. [2023-11-21 19:34:53,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-21 19:34:53,514 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:34:53,515 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:34:53,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 19:34:53,515 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-21 19:34:53,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:34:53,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1734340936, now seen corresponding path program 1 times [2023-11-21 19:34:53,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:34:53,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070295575] [2023-11-21 19:34:53,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:34:53,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:34:53,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat