./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36658984-810a-457b-a63a-f9c4ad8de452/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36658984-810a-457b-a63a-f9c4ad8de452/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_36658984-810a-457b-a63a-f9c4ad8de452/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36658984-810a-457b-a63a-f9c4ad8de452/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36658984-810a-457b-a63a-f9c4ad8de452/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_36658984-810a-457b-a63a-f9c4ad8de452/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 6081258d9228cc20a54c5db1ec40347e5dbacbb2bb40755a07881673d13b875b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:56:33,326 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:56:33,396 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36658984-810a-457b-a63a-f9c4ad8de452/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 04:56:33,401 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:56:33,402 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:56:33,427 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:56:33,428 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:56:33,428 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:56:33,429 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:56:33,430 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:56:33,430 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:56:33,431 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:56:33,431 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:56:33,432 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:56:33,433 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:56:33,433 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:56:33,434 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:56:33,434 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:56:33,435 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:56:33,435 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:56:33,436 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:56:33,437 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:56:33,437 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:56:33,438 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:56:33,438 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:56:33,439 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:56:33,439 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:56:33,439 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:56:33,440 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:56:33,440 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:56:33,440 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:56:33,441 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:56:33,441 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:56:33,441 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:56:33,442 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:56:33,442 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:56:33,442 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:56:33,443 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:56:33,444 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:56:33,444 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:56:33,444 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:56:33,445 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:56:33,445 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_36658984-810a-457b-a63a-f9c4ad8de452/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36658984-810a-457b-a63a-f9c4ad8de452/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6081258d9228cc20a54c5db1ec40347e5dbacbb2bb40755a07881673d13b875b [2023-11-19 04:56:33,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:56:33,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:56:33,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:56:33,834 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:56:33,835 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:56:33,836 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36658984-810a-457b-a63a-f9c4ad8de452/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i [2023-11-19 04:56:37,127 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:56:38,074 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:56:38,075 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36658984-810a-457b-a63a-f9c4ad8de452/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i [2023-11-19 04:56:38,158 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36658984-810a-457b-a63a-f9c4ad8de452/bin/utaipan-verify-t7M7D8N6sZ/data/b9eff0fdc/ddde3dca11164e28ad6cf7251b6cf7b7/FLAG7e8baad51 [2023-11-19 04:56:38,172 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36658984-810a-457b-a63a-f9c4ad8de452/bin/utaipan-verify-t7M7D8N6sZ/data/b9eff0fdc/ddde3dca11164e28ad6cf7251b6cf7b7 [2023-11-19 04:56:38,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:56:38,176 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:56:38,178 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:56:38,178 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:56:38,185 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:56:38,186 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:56:38" (1/1) ... [2023-11-19 04:56:38,187 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5569075b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:38, skipping insertion in model container [2023-11-19 04:56:38,187 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:56:38" (1/1) ... [2023-11-19 04:56:38,448 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:56:42,856 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_36658984-810a-457b-a63a-f9c4ad8de452/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386207,386220] [2023-11-19 04:56:42,862 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_36658984-810a-457b-a63a-f9c4ad8de452/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386376,386389] [2023-11-19 04:56:42,868 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_36658984-810a-457b-a63a-f9c4ad8de452/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386543,386556] [2023-11-19 04:56:42,868 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_36658984-810a-457b-a63a-f9c4ad8de452/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386711,386724] [2023-11-19 04:56:42,895 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:56:42,981 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:56:43,229 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] [2023-11-19 04:56:43,231 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] [2023-11-19 04:56:43,232 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5254] [2023-11-19 04:56:43,234 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)); [5295-5296] [2023-11-19 04:56:43,234 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"); [5301-5303] [2023-11-19 04:56:43,238 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %1,%0": "=r" (ret): "m" (*((unsigned short volatile *)addr)): "memory"); [5461] [2023-11-19 04:56:43,239 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5469] [2023-11-19 04:56:43,239 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %0,%1": : "r" (val), "m" (*((unsigned short volatile *)addr)): "memory"); [5476] [2023-11-19 04:56:43,240 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5483] [2023-11-19 04:56:43,246 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)); [5602-5603] [2023-11-19 04:56:43,249 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)); [5636-5637] [2023-11-19 04:56:43,250 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)); [5673-5674] [2023-11-19 04:56:43,252 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)); [5710-5711] [2023-11-19 04:56:43,260 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/linux/netdevice.h"), "i" (502), "i" (12UL)); [5968-5969] [2023-11-19 04:56:43,261 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [5975] [2023-11-19 04:56:43,395 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8603] [2023-11-19 04:56:43,408 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)(& np->rx_skbuff) + ((unsigned long )np->cur_rx & 31UL)) [8759] [2023-11-19 04:56:43,486 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/ethernet/natsemi/natsemi.c"), "i" (3315), "i" (12UL)); [10311-10312] [2023-11-19 04:56:43,671 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_36658984-810a-457b-a63a-f9c4ad8de452/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386207,386220] [2023-11-19 04:56:43,672 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_36658984-810a-457b-a63a-f9c4ad8de452/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386376,386389] [2023-11-19 04:56:43,672 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_36658984-810a-457b-a63a-f9c4ad8de452/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386543,386556] [2023-11-19 04:56:43,673 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_36658984-810a-457b-a63a-f9c4ad8de452/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386711,386724] [2023-11-19 04:56:43,686 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:56:44,018 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:56:44,018 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:56:44,028 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:56:44,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:44 WrapperNode [2023-11-19 04:56:44,029 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:56:44,031 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:56:44,032 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:56:44,032 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:56:44,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:44" (1/1) ... [2023-11-19 04:56:44,208 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:44" (1/1) ... [2023-11-19 04:56:44,556 INFO L138 Inliner]: procedures = 512, calls = 2628, calls flagged for inlining = 249, calls inlined = 217, statements flattened = 6550 [2023-11-19 04:56:44,557 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:56:44,559 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:56:44,559 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:56:44,559 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:56:44,571 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:44" (1/1) ... [2023-11-19 04:56:44,571 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:44" (1/1) ... [2023-11-19 04:56:44,656 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:44" (1/1) ... [2023-11-19 04:56:44,657 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:44" (1/1) ... [2023-11-19 04:56:44,858 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:44" (1/1) ... [2023-11-19 04:56:44,891 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:44" (1/1) ... [2023-11-19 04:56:44,923 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:44" (1/1) ... [2023-11-19 04:56:44,946 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:44" (1/1) ... [2023-11-19 04:56:44,992 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:56:44,993 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:56:44,993 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:56:44,994 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:56:44,995 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:44" (1/1) ... [2023-11-19 04:56:45,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:56:45,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36658984-810a-457b-a63a-f9c4ad8de452/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:56:45,033 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36658984-810a-457b-a63a-f9c4ad8de452/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:56:45,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_36658984-810a-457b-a63a-f9c4ad8de452/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:56:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure drain_rx [2023-11-19 04:56:45,083 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_rx [2023-11-19 04:56:45,083 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-19 04:56:45,084 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-19 04:56:45,084 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-19 04:56:45,085 INFO L130 BoogieDeclarations]: Found specification of procedure miiport_write [2023-11-19 04:56:45,085 INFO L138 BoogieDeclarations]: Found implementation of procedure miiport_write [2023-11-19 04:56:45,085 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-19 04:56:45,085 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-19 04:56:45,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 04:56:45,087 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 04:56:45,087 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-19 04:56:45,087 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-19 04:56:45,087 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_tx_done [2023-11-19 04:56:45,087 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_tx_done [2023-11-19 04:56:45,088 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-19 04:56:45,088 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-19 04:56:45,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 04:56:45,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 04:56:45,088 INFO L130 BoogieDeclarations]: Found specification of procedure reinit_rx [2023-11-19 04:56:45,089 INFO L138 BoogieDeclarations]: Found implementation of procedure reinit_rx [2023-11-19 04:56:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-19 04:56:45,089 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-19 04:56:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 04:56:45,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 04:56:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure reinit_ring [2023-11-19 04:56:45,090 INFO L138 BoogieDeclarations]: Found implementation of procedure reinit_ring [2023-11-19 04:56:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2023-11-19 04:56:45,090 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2023-11-19 04:56:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-19 04:56:45,091 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-19 04:56:45,091 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2023-11-19 04:56:45,091 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2023-11-19 04:56:45,091 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-19 04:56:45,091 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-19 04:56:45,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2023-11-19 04:56:45,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2023-11-19 04:56:45,092 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-19 04:56:45,093 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-19 04:56:45,094 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 04:56:45,094 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-19 04:56:45,094 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-19 04:56:45,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 04:56:45,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 04:56:45,095 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-19 04:56:45,095 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-19 04:56:45,095 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-19 04:56:45,096 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-19 04:56:45,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 04:56:45,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 04:56:45,096 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2023-11-19 04:56:45,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2023-11-19 04:56:45,097 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-19 04:56:45,098 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-19 04:56:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2023-11-19 04:56:45,098 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2023-11-19 04:56:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:56:45,099 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-19 04:56:45,099 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-19 04:56:45,100 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2023-11-19 04:56:45,100 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2023-11-19 04:56:45,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2023-11-19 04:56:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2023-11-19 04:56:45,101 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_read [2023-11-19 04:56:45,101 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_read [2023-11-19 04:56:45,102 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 04:56:45,102 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 04:56:45,102 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_stop_rxtx [2023-11-19 04:56:45,102 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_stop_rxtx [2023-11-19 04:56:45,102 INFO L130 BoogieDeclarations]: Found specification of procedure ns_tx_timeout [2023-11-19 04:56:45,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_tx_timeout [2023-11-19 04:56:45,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 04:56:45,103 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 04:56:45,103 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 04:56:45,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2023-11-19 04:56:45,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2023-11-19 04:56:45,104 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_reset [2023-11-19 04:56:45,104 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_reset [2023-11-19 04:56:45,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:56:45,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 04:56:45,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 04:56:45,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:56:45,105 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-19 04:56:45,105 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-19 04:56:45,105 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-19 04:56:45,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-19 04:56:45,106 INFO L130 BoogieDeclarations]: Found specification of procedure move_int_phy [2023-11-19 04:56:45,106 INFO L138 BoogieDeclarations]: Found implementation of procedure move_int_phy [2023-11-19 04:56:45,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 04:56:45,107 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 04:56:45,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-19 04:56:45,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-19 04:56:45,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-19 04:56:45,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-19 04:56:45,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-19 04:56:45,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-19 04:56:45,109 INFO L130 BoogieDeclarations]: Found specification of procedure enable_wol_mode [2023-11-19 04:56:45,109 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_wol_mode [2023-11-19 04:56:45,109 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_resume [2023-11-19 04:56:45,110 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_resume [2023-11-19 04:56:45,110 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2023-11-19 04:56:45,110 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2023-11-19 04:56:45,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 04:56:45,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 04:56:45,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:56:45,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-19 04:56:45,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-19 04:56:45,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-19 04:56:45,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-19 04:56:45,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2023-11-19 04:56:45,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2023-11-19 04:56:45,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:56:45,114 INFO L130 BoogieDeclarations]: Found specification of procedure mii_getbit [2023-11-19 04:56:45,115 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_getbit [2023-11-19 04:56:45,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 04:56:45,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 04:56:45,115 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 04:56:45,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 04:56:45,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:56:45,116 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:56:45,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:56:45,116 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-19 04:56:45,117 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-19 04:56:45,118 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_poll_controller [2023-11-19 04:56:45,121 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_poll_controller [2023-11-19 04:56:45,122 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-19 04:56:45,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-19 04:56:45,123 INFO L130 BoogieDeclarations]: Found specification of procedure check_link [2023-11-19 04:56:45,124 INFO L138 BoogieDeclarations]: Found implementation of procedure check_link [2023-11-19 04:56:45,124 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2023-11-19 04:56:45,125 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2023-11-19 04:56:45,126 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 04:56:45,126 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 04:56:45,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-19 04:56:45,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-19 04:56:45,131 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-19 04:56:45,132 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-19 04:56:45,132 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-19 04:56:45,132 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-19 04:56:45,132 INFO L130 BoogieDeclarations]: Found specification of procedure init_phy_fixup [2023-11-19 04:56:45,132 INFO L138 BoogieDeclarations]: Found implementation of procedure init_phy_fixup [2023-11-19 04:56:45,132 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2023-11-19 04:56:45,133 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2023-11-19 04:56:45,133 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-19 04:56:45,133 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-19 04:56:45,133 INFO L130 BoogieDeclarations]: Found specification of procedure mii_nway_result [2023-11-19 04:56:45,133 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_nway_result [2023-11-19 04:56:45,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:56:45,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:56:45,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 04:56:45,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 04:56:45,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 04:56:45,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 04:56:45,135 INFO L130 BoogieDeclarations]: Found specification of procedure switch_port_external [2023-11-19 04:56:45,135 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_port_external [2023-11-19 04:56:45,135 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2023-11-19 04:56:45,135 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2023-11-19 04:56:45,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 04:56:45,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 04:56:45,136 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-19 04:56:45,136 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-19 04:56:45,136 INFO L130 BoogieDeclarations]: Found specification of procedure get_eeprom_len [2023-11-19 04:56:45,137 INFO L138 BoogieDeclarations]: Found implementation of procedure get_eeprom_len [2023-11-19 04:56:45,137 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2023-11-19 04:56:45,137 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2023-11-19 04:56:45,137 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2023-11-19 04:56:45,137 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2023-11-19 04:56:45,137 INFO L130 BoogieDeclarations]: Found specification of procedure get_regs_len [2023-11-19 04:56:45,138 INFO L138 BoogieDeclarations]: Found implementation of procedure get_regs_len [2023-11-19 04:56:45,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-19 04:56:45,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-19 04:56:45,138 INFO L130 BoogieDeclarations]: Found specification of procedure nway_reset [2023-11-19 04:56:45,138 INFO L138 BoogieDeclarations]: Found implementation of procedure nway_reset [2023-11-19 04:56:45,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_netdev_private [2023-11-19 04:56:45,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_netdev_private [2023-11-19 04:56:45,139 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-19 04:56:45,139 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-19 04:56:45,139 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2023-11-19 04:56:45,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2023-11-19 04:56:45,140 INFO L130 BoogieDeclarations]: Found specification of procedure init_registers [2023-11-19 04:56:45,140 INFO L138 BoogieDeclarations]: Found implementation of procedure init_registers [2023-11-19 04:56:45,140 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 04:56:45,140 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 04:56:45,140 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-19 04:56:45,140 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-19 04:56:45,141 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2023-11-19 04:56:45,141 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2023-11-19 04:56:45,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:56:45,141 INFO L130 BoogieDeclarations]: Found specification of procedure switch_port_internal [2023-11-19 04:56:45,141 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_port_internal [2023-11-19 04:56:45,141 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-19 04:56:45,142 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-19 04:56:45,142 INFO L130 BoogieDeclarations]: Found specification of procedure dump_ring [2023-11-19 04:56:45,142 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_ring [2023-11-19 04:56:45,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:56:45,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:56:45,142 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 04:56:45,143 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 04:56:45,143 INFO L130 BoogieDeclarations]: Found specification of procedure intr_handler [2023-11-19 04:56:45,143 INFO L138 BoogieDeclarations]: Found implementation of procedure intr_handler [2023-11-19 04:56:45,143 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 04:56:45,143 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 04:56:45,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_netdev_private [2023-11-19 04:56:45,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_netdev_private [2023-11-19 04:56:45,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_68 [2023-11-19 04:56:45,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_68 [2023-11-19 04:56:45,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 04:56:45,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 04:56:45,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-19 04:56:45,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-19 04:56:45,145 INFO L130 BoogieDeclarations]: Found specification of procedure __get_stats [2023-11-19 04:56:45,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_stats [2023-11-19 04:56:45,145 INFO L130 BoogieDeclarations]: Found specification of procedure set_bufsize [2023-11-19 04:56:45,145 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bufsize [2023-11-19 04:56:45,146 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-19 04:56:45,146 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-19 04:56:45,146 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2023-11-19 04:56:45,146 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2023-11-19 04:56:45,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_84 [2023-11-19 04:56:45,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_84 [2023-11-19 04:56:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure drain_ring [2023-11-19 04:56:45,147 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_ring [2023-11-19 04:56:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-19 04:56:45,147 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-19 04:56:45,147 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 04:56:45,147 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 04:56:45,148 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-19 04:56:45,148 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-19 04:56:45,148 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-19 04:56:45,148 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-19 04:56:45,148 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_remove1 [2023-11-19 04:56:45,148 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_remove1 [2023-11-19 04:56:45,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_natsemi_exit_mod_15_2 [2023-11-19 04:56:45,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_natsemi_exit_mod_15_2 [2023-11-19 04:56:45,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:56:45,149 INFO L130 BoogieDeclarations]: Found specification of procedure init_ring [2023-11-19 04:56:45,149 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ring [2023-11-19 04:56:45,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 04:56:45,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 04:56:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_85 [2023-11-19 04:56:45,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_85 [2023-11-19 04:56:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_irq_disable [2023-11-19 04:56:45,150 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_irq_disable [2023-11-19 04:56:45,150 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2023-11-19 04:56:45,151 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2023-11-19 04:56:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-19 04:56:45,151 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-19 04:56:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_69 [2023-11-19 04:56:45,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_69 [2023-11-19 04:56:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2023-11-19 04:56:45,153 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2023-11-19 04:56:45,157 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2023-11-19 04:56:45,158 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2023-11-19 04:56:45,158 INFO L130 BoogieDeclarations]: Found specification of procedure ns_ioaddr [2023-11-19 04:56:45,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_ioaddr [2023-11-19 04:56:45,158 INFO L130 BoogieDeclarations]: Found specification of procedure mii_send_bits [2023-11-19 04:56:45,158 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_send_bits [2023-11-19 04:56:45,159 INFO L130 BoogieDeclarations]: Found specification of procedure refill_rx [2023-11-19 04:56:45,159 INFO L138 BoogieDeclarations]: Found implementation of procedure refill_rx [2023-11-19 04:56:45,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 04:56:45,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 04:56:45,163 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2023-11-19 04:56:45,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2023-11-19 04:56:45,164 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2023-11-19 04:56:45,164 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2023-11-19 04:56:45,164 INFO L130 BoogieDeclarations]: Found specification of procedure drain_tx [2023-11-19 04:56:45,164 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_tx [2023-11-19 04:56:45,164 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_irq_enable [2023-11-19 04:56:45,164 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_irq_enable [2023-11-19 04:56:45,164 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-19 04:56:45,165 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-19 04:56:45,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:56:45,165 INFO L130 BoogieDeclarations]: Found specification of procedure miiport_read [2023-11-19 04:56:45,165 INFO L138 BoogieDeclarations]: Found implementation of procedure miiport_read [2023-11-19 04:56:45,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 04:56:45,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 04:56:45,166 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-11-19 04:56:45,166 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-11-19 04:56:46,394 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:56:46,400 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:56:47,172 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 04:56:52,262 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-19 04:56:52,441 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:56:58,349 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:56:58,350 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:56:58,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:56:58 BoogieIcfgContainer [2023-11-19 04:56:58,372 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:56:58,376 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:56:58,376 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:56:58,379 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:56:58,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:56:38" (1/3) ... [2023-11-19 04:56:58,381 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b3c8d78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:56:58, skipping insertion in model container [2023-11-19 04:56:58,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:44" (2/3) ... [2023-11-19 04:56:58,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b3c8d78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:56:58, skipping insertion in model container [2023-11-19 04:56:58,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:56:58" (3/3) ... [2023-11-19 04:56:58,384 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i [2023-11-19 04:56:58,407 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:56:58,407 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-19 04:56:58,531 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:56:58,540 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;@68b58eb3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:56:58,540 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-19 04:56:58,552 INFO L276 IsEmpty]: Start isEmpty. Operand has 2068 states, 1142 states have (on average 1.266199649737303) internal successors, (1446), 1179 states have internal predecessors, (1446), 794 states have call successors, (794), 130 states have call predecessors, (794), 129 states have return successors, (788), 779 states have call predecessors, (788), 788 states have call successors, (788) [2023-11-19 04:56:58,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-11-19 04:56:58,577 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:56:58,578 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:56:58,578 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 04:56:58,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:56:58,583 INFO L85 PathProgramCache]: Analyzing trace with hash 335117206, now seen corresponding path program 1 times [2023-11-19 04:56:58,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:56:58,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032261988] [2023-11-19 04:56:58,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:56:58,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:56:59,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:56:59,667 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2023-11-19 04:56:59,668 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:56:59,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032261988] [2023-11-19 04:56:59,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032261988] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:56:59,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:56:59,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:56:59,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367337908] [2023-11-19 04:56:59,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:56:59,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:56:59,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:56:59,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:56:59,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:56:59,721 INFO L87 Difference]: Start difference. First operand has 2068 states, 1142 states have (on average 1.266199649737303) internal successors, (1446), 1179 states have internal predecessors, (1446), 794 states have call successors, (794), 130 states have call predecessors, (794), 129 states have return successors, (788), 779 states have call predecessors, (788), 788 states have call successors, (788) Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-19 04:57:05,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:57:05,503 INFO L93 Difference]: Finished difference Result 6066 states and 9027 transitions. [2023-11-19 04:57:05,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:57:05,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 171 [2023-11-19 04:57:05,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:57:05,566 INFO L225 Difference]: With dead ends: 6066 [2023-11-19 04:57:05,566 INFO L226 Difference]: Without dead ends: 4019 [2023-11-19 04:57:05,587 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 [2023-11-19 04:57:05,590 INFO L413 NwaCegarLoop]: 2651 mSDtfsCounter, 2893 mSDsluCounter, 2604 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2893 SdHoareTripleChecker+Valid, 5255 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-11-19 04:57:05,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2893 Valid, 5255 Invalid, 785 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-11-19 04:57:05,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4019 states. [2023-11-19 04:57:05,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4019 to 4015. [2023-11-19 04:57:05,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4015 states, 2230 states have (on average 1.2623318385650224) internal successors, (2815), 2303 states have internal predecessors, (2815), 1528 states have call successors, (1528), 255 states have call predecessors, (1528), 254 states have return successors, (1524), 1506 states have call predecessors, (1524), 1524 states have call successors, (1524) [2023-11-19 04:57:05,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4015 states to 4015 states and 5867 transitions. [2023-11-19 04:57:06,000 INFO L78 Accepts]: Start accepts. Automaton has 4015 states and 5867 transitions. Word has length 171 [2023-11-19 04:57:06,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:57:06,004 INFO L495 AbstractCegarLoop]: Abstraction has 4015 states and 5867 transitions. [2023-11-19 04:57:06,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-19 04:57:06,005 INFO L276 IsEmpty]: Start isEmpty. Operand 4015 states and 5867 transitions. [2023-11-19 04:57:06,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-19 04:57:06,021 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:06,022 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:57:06,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:57:06,023 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)] === [2023-11-19 04:57:06,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:06,024 INFO L85 PathProgramCache]: Analyzing trace with hash 255884071, now seen corresponding path program 1 times [2023-11-19 04:57:06,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:57:06,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75572650] [2023-11-19 04:57:06,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:06,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:57:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:57:06,432 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2023-11-19 04:57:06,432 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:57:06,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75572650] [2023-11-19 04:57:06,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75572650] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:57:06,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:57:06,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:57:06,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015537094] [2023-11-19 04:57:06,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:57:06,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:57:06,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:57:06,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:57:06,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:57:06,437 INFO L87 Difference]: Start difference. First operand 4015 states and 5867 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-19 04:57:09,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:57:11,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:57:11,787 INFO L93 Difference]: Finished difference Result 11167 states and 16249 transitions. [2023-11-19 04:57:11,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:57:11,788 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 179 [2023-11-19 04:57:11,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:57:11,864 INFO L225 Difference]: With dead ends: 11167 [2023-11-19 04:57:11,864 INFO L226 Difference]: Without dead ends: 7183 [2023-11-19 04:57:11,889 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 [2023-11-19 04:57:11,891 INFO L413 NwaCegarLoop]: 2630 mSDtfsCounter, 2328 mSDsluCounter, 2566 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2328 SdHoareTripleChecker+Valid, 5196 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-11-19 04:57:11,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2328 Valid, 5196 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-11-19 04:57:11,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7183 states. [2023-11-19 04:57:12,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7183 to 7154. [2023-11-19 04:57:12,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7154 states, 3934 states have (on average 1.2503812913065582) internal successors, (4919), 4070 states have internal predecessors, (4919), 2732 states have call successors, (2732), 490 states have call predecessors, (2732), 485 states have return successors, (2730), 2681 states have call predecessors, (2730), 2728 states have call successors, (2730) [2023-11-19 04:57:12,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7154 states to 7154 states and 10381 transitions. [2023-11-19 04:57:12,533 INFO L78 Accepts]: Start accepts. Automaton has 7154 states and 10381 transitions. Word has length 179 [2023-11-19 04:57:12,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:57:12,534 INFO L495 AbstractCegarLoop]: Abstraction has 7154 states and 10381 transitions. [2023-11-19 04:57:12,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-19 04:57:12,537 INFO L276 IsEmpty]: Start isEmpty. Operand 7154 states and 10381 transitions. [2023-11-19 04:57:12,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-11-19 04:57:12,541 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:12,542 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:57:12,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:57:12,542 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)] === [2023-11-19 04:57:12,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:12,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1622779766, now seen corresponding path program 1 times [2023-11-19 04:57:12,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:57:12,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797147603] [2023-11-19 04:57:12,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:12,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:57:12,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:57:13,001 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2023-11-19 04:57:13,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:57:13,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797147603] [2023-11-19 04:57:13,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797147603] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:57:13,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:57:13,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:57:13,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384723104] [2023-11-19 04:57:13,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:57:13,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:57:13,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:57:13,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:57:13,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:57:13,005 INFO L87 Difference]: Start difference. First operand 7154 states and 10381 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-19 04:57:19,616 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 []