./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 0e0057cc 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_e3f30e16-4e26-49ef-9da2-61102a7db362/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f30e16-4e26-49ef-9da2-61102a7db362/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f30e16-4e26-49ef-9da2-61102a7db362/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f30e16-4e26-49ef-9da2-61102a7db362/bin/utaipan-verify-SwPr7d2a91/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_e3f30e16-4e26-49ef-9da2-61102a7db362/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f30e16-4e26-49ef-9da2-61102a7db362/bin/utaipan-verify-SwPr7d2a91 --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 0.2.4-dev-0e0057c [2023-11-24 23:57:14,869 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:57:14,965 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f30e16-4e26-49ef-9da2-61102a7db362/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:57:14,976 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:57:14,977 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:57:15,014 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:57:15,015 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:57:15,016 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:57:15,017 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:57:15,023 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:57:15,023 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:57:15,024 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:57:15,025 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:57:15,027 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:57:15,027 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:57:15,028 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:57:15,028 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:57:15,029 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:57:15,029 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:57:15,030 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:57:15,031 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:57:15,031 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:57:15,032 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:57:15,033 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:57:15,033 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:57:15,034 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:57:15,034 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:57:15,034 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:57:15,035 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:57:15,035 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:57:15,036 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:57:15,036 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:57:15,037 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:57:15,037 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:57:15,037 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:57:15,037 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:57:15,038 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:57:15,038 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:57:15,038 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:57:15,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:57:15,039 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:57:15,039 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:57:15,039 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:57:15,040 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:57:15,040 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_e3f30e16-4e26-49ef-9da2-61102a7db362/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f30e16-4e26-49ef-9da2-61102a7db362/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6081258d9228cc20a54c5db1ec40347e5dbacbb2bb40755a07881673d13b875b [2023-11-24 23:57:15,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:57:15,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:57:15,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:57:15,339 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:57:15,340 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:57:15,341 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f30e16-4e26-49ef-9da2-61102a7db362/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i [2023-11-24 23:57:18,570 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:57:19,437 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:57:19,438 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f30e16-4e26-49ef-9da2-61102a7db362/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i [2023-11-24 23:57:19,511 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f30e16-4e26-49ef-9da2-61102a7db362/bin/utaipan-verify-SwPr7d2a91/data/b1d1c961d/cf305953e682451b8859b1ce8985746a/FLAG546deb768 [2023-11-24 23:57:19,528 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f30e16-4e26-49ef-9da2-61102a7db362/bin/utaipan-verify-SwPr7d2a91/data/b1d1c961d/cf305953e682451b8859b1ce8985746a [2023-11-24 23:57:19,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:57:19,539 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:57:19,544 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:57:19,544 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:57:19,549 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:57:19,550 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:57:19" (1/1) ... [2023-11-24 23:57:19,552 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64394543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:19, skipping insertion in model container [2023-11-24 23:57:19,552 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:57:19" (1/1) ... [2023-11-24 23:57:19,806 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:57:23,827 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_e3f30e16-4e26-49ef-9da2-61102a7db362/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386207,386220] [2023-11-24 23:57:23,832 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_e3f30e16-4e26-49ef-9da2-61102a7db362/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386376,386389] [2023-11-24 23:57:23,833 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_e3f30e16-4e26-49ef-9da2-61102a7db362/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386543,386556] [2023-11-24 23:57:23,834 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_e3f30e16-4e26-49ef-9da2-61102a7db362/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386711,386724] [2023-11-24 23:57:23,856 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:57:23,937 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:57:24,062 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] [2023-11-24 23:57:24,064 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] [2023-11-24 23:57:24,065 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5254] [2023-11-24 23:57:24,067 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] [2023-11-24 23:57:24,068 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] [2023-11-24 23:57:24,073 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %1,%0": "=r" (ret): "m" (*((unsigned short volatile *)addr)): "memory"); [5461] [2023-11-24 23:57:24,073 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5469] [2023-11-24 23:57:24,074 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %0,%1": : "r" (val), "m" (*((unsigned short volatile *)addr)): "memory"); [5476] [2023-11-24 23:57:24,074 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5483] [2023-11-24 23:57:24,081 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [5602-5603] [2023-11-24 23:57:24,174 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] [2023-11-24 23:57:24,176 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] [2023-11-24 23:57:24,177 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] [2023-11-24 23:57:24,186 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] [2023-11-24 23:57:24,187 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [5975] [2023-11-24 23:57:24,303 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8603] [2023-11-24 23:57:24,312 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] [2023-11-24 23:57:24,396 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] [2023-11-24 23:57:24,495 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_e3f30e16-4e26-49ef-9da2-61102a7db362/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386207,386220] [2023-11-24 23:57:24,496 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_e3f30e16-4e26-49ef-9da2-61102a7db362/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386376,386389] [2023-11-24 23:57:24,497 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_e3f30e16-4e26-49ef-9da2-61102a7db362/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386543,386556] [2023-11-24 23:57:24,498 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_e3f30e16-4e26-49ef-9da2-61102a7db362/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[386711,386724] [2023-11-24 23:57:24,518 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:57:24,928 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:57:24,928 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:57:24,937 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:57:24,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:24 WrapperNode [2023-11-24 23:57:24,938 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:57:24,940 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:57:24,940 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:57:24,940 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:57:24,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:24" (1/1) ... [2023-11-24 23:57:25,127 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:24" (1/1) ... [2023-11-24 23:57:25,423 INFO L138 Inliner]: procedures = 512, calls = 2628, calls flagged for inlining = 249, calls inlined = 217, statements flattened = 6612 [2023-11-24 23:57:25,424 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:57:25,425 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:57:25,425 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:57:25,425 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:57:25,436 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:24" (1/1) ... [2023-11-24 23:57:25,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:24" (1/1) ... [2023-11-24 23:57:25,476 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:24" (1/1) ... [2023-11-24 23:57:25,477 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:24" (1/1) ... [2023-11-24 23:57:25,756 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:24" (1/1) ... [2023-11-24 23:57:25,812 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:24" (1/1) ... [2023-11-24 23:57:25,851 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:24" (1/1) ... [2023-11-24 23:57:25,886 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:24" (1/1) ... [2023-11-24 23:57:25,947 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:57:25,949 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:57:25,950 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:57:25,950 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:57:25,951 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:24" (1/1) ... [2023-11-24 23:57:25,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:57:25,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f30e16-4e26-49ef-9da2-61102a7db362/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:57:25,992 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f30e16-4e26-49ef-9da2-61102a7db362/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:57:26,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f30e16-4e26-49ef-9da2-61102a7db362/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:57:26,043 INFO L130 BoogieDeclarations]: Found specification of procedure drain_rx [2023-11-24 23:57:26,043 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_rx [2023-11-24 23:57:26,043 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-24 23:57:26,044 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-24 23:57:26,044 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-24 23:57:26,044 INFO L130 BoogieDeclarations]: Found specification of procedure miiport_write [2023-11-24 23:57:26,045 INFO L138 BoogieDeclarations]: Found implementation of procedure miiport_write [2023-11-24 23:57:26,045 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-24 23:57:26,045 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-24 23:57:26,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-24 23:57:26,045 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-24 23:57:26,046 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-24 23:57:26,046 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-24 23:57:26,046 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_tx_done [2023-11-24 23:57:26,046 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_tx_done [2023-11-24 23:57:26,046 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-24 23:57:26,047 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-24 23:57:26,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-24 23:57:26,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-24 23:57:26,047 INFO L130 BoogieDeclarations]: Found specification of procedure reinit_rx [2023-11-24 23:57:26,047 INFO L138 BoogieDeclarations]: Found implementation of procedure reinit_rx [2023-11-24 23:57:26,048 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-24 23:57:26,048 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-24 23:57:26,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-24 23:57:26,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-24 23:57:26,048 INFO L130 BoogieDeclarations]: Found specification of procedure reinit_ring [2023-11-24 23:57:26,048 INFO L138 BoogieDeclarations]: Found implementation of procedure reinit_ring [2023-11-24 23:57:26,049 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2023-11-24 23:57:26,049 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2023-11-24 23:57:26,049 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-24 23:57:26,049 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-24 23:57:26,049 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2023-11-24 23:57:26,050 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2023-11-24 23:57:26,050 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-24 23:57:26,050 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-24 23:57:26,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2023-11-24 23:57:26,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2023-11-24 23:57:26,052 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-24 23:57:26,053 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-24 23:57:26,053 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-24 23:57:26,053 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-24 23:57:26,053 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-24 23:57:26,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-24 23:57:26,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-24 23:57:26,054 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-24 23:57:26,054 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-24 23:57:26,055 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-24 23:57:26,055 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-24 23:57:26,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-24 23:57:26,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-24 23:57:26,056 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2023-11-24 23:57:26,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2023-11-24 23:57:26,057 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-24 23:57:26,057 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-24 23:57:26,057 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2023-11-24 23:57:26,057 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2023-11-24 23:57:26,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:57:26,058 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-24 23:57:26,058 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-24 23:57:26,058 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2023-11-24 23:57:26,059 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2023-11-24 23:57:26,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2023-11-24 23:57:26,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2023-11-24 23:57:26,060 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_read [2023-11-24 23:57:26,060 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_read [2023-11-24 23:57:26,060 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-24 23:57:26,060 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-24 23:57:26,061 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_stop_rxtx [2023-11-24 23:57:26,061 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_stop_rxtx [2023-11-24 23:57:26,061 INFO L130 BoogieDeclarations]: Found specification of procedure ns_tx_timeout [2023-11-24 23:57:26,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_tx_timeout [2023-11-24 23:57:26,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-24 23:57:26,062 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-24 23:57:26,062 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-24 23:57:26,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2023-11-24 23:57:26,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2023-11-24 23:57:26,062 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_reset [2023-11-24 23:57:26,063 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_reset [2023-11-24 23:57:26,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-24 23:57:26,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-24 23:57:26,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-24 23:57:26,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:57:26,064 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-11-24 23:57:26,064 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-11-24 23:57:26,065 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-24 23:57:26,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-24 23:57:26,065 INFO L130 BoogieDeclarations]: Found specification of procedure move_int_phy [2023-11-24 23:57:26,065 INFO L138 BoogieDeclarations]: Found implementation of procedure move_int_phy [2023-11-24 23:57:26,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-24 23:57:26,066 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-24 23:57:26,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-24 23:57:26,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-24 23:57:26,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-24 23:57:26,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-24 23:57:26,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-24 23:57:26,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-24 23:57:26,068 INFO L130 BoogieDeclarations]: Found specification of procedure enable_wol_mode [2023-11-24 23:57:26,068 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_wol_mode [2023-11-24 23:57:26,068 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_resume [2023-11-24 23:57:26,069 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_resume [2023-11-24 23:57:26,069 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2023-11-24 23:57:26,069 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2023-11-24 23:57:26,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-24 23:57:26,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-24 23:57:26,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:57:26,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-24 23:57:26,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-24 23:57:26,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-24 23:57:26,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-24 23:57:26,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2023-11-24 23:57:26,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2023-11-24 23:57:26,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:57:26,072 INFO L130 BoogieDeclarations]: Found specification of procedure mii_getbit [2023-11-24 23:57:26,073 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_getbit [2023-11-24 23:57:26,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-24 23:57:26,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-24 23:57:26,073 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-24 23:57:26,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-24 23:57:26,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:57:26,074 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-24 23:57:26,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-24 23:57:26,075 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-24 23:57:26,078 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-24 23:57:26,079 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_poll_controller [2023-11-24 23:57:26,080 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_poll_controller [2023-11-24 23:57:26,080 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-24 23:57:26,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-24 23:57:26,081 INFO L130 BoogieDeclarations]: Found specification of procedure check_link [2023-11-24 23:57:26,082 INFO L138 BoogieDeclarations]: Found implementation of procedure check_link [2023-11-24 23:57:26,083 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2023-11-24 23:57:26,083 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2023-11-24 23:57:26,089 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-24 23:57:26,089 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-24 23:57:26,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-24 23:57:26,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-24 23:57:26,090 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-24 23:57:26,090 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-24 23:57:26,090 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-24 23:57:26,090 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-24 23:57:26,090 INFO L130 BoogieDeclarations]: Found specification of procedure init_phy_fixup [2023-11-24 23:57:26,091 INFO L138 BoogieDeclarations]: Found implementation of procedure init_phy_fixup [2023-11-24 23:57:26,091 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2023-11-24 23:57:26,091 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2023-11-24 23:57:26,091 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-24 23:57:26,091 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-24 23:57:26,091 INFO L130 BoogieDeclarations]: Found specification of procedure mii_nway_result [2023-11-24 23:57:26,092 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_nway_result [2023-11-24 23:57:26,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:57:26,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:57:26,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-24 23:57:26,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-24 23:57:26,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-24 23:57:26,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-24 23:57:26,093 INFO L130 BoogieDeclarations]: Found specification of procedure switch_port_external [2023-11-24 23:57:26,093 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_port_external [2023-11-24 23:57:26,093 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2023-11-24 23:57:26,094 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2023-11-24 23:57:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-24 23:57:26,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-24 23:57:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-24 23:57:26,094 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-24 23:57:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure get_eeprom_len [2023-11-24 23:57:26,095 INFO L138 BoogieDeclarations]: Found implementation of procedure get_eeprom_len [2023-11-24 23:57:26,095 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2023-11-24 23:57:26,095 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2023-11-24 23:57:26,095 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2023-11-24 23:57:26,095 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2023-11-24 23:57:26,096 INFO L130 BoogieDeclarations]: Found specification of procedure get_regs_len [2023-11-24 23:57:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure get_regs_len [2023-11-24 23:57:26,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-24 23:57:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-24 23:57:26,096 INFO L130 BoogieDeclarations]: Found specification of procedure nway_reset [2023-11-24 23:57:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure nway_reset [2023-11-24 23:57:26,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_netdev_private [2023-11-24 23:57:26,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_netdev_private [2023-11-24 23:57:26,097 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-24 23:57:26,097 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-24 23:57:26,097 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2023-11-24 23:57:26,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2023-11-24 23:57:26,098 INFO L130 BoogieDeclarations]: Found specification of procedure init_registers [2023-11-24 23:57:26,098 INFO L138 BoogieDeclarations]: Found implementation of procedure init_registers [2023-11-24 23:57:26,098 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-24 23:57:26,098 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-24 23:57:26,098 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-24 23:57:26,099 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-24 23:57:26,099 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2023-11-24 23:57:26,099 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2023-11-24 23:57:26,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:57:26,099 INFO L130 BoogieDeclarations]: Found specification of procedure switch_port_internal [2023-11-24 23:57:26,099 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_port_internal [2023-11-24 23:57:26,100 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-24 23:57:26,100 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-24 23:57:26,100 INFO L130 BoogieDeclarations]: Found specification of procedure dump_ring [2023-11-24 23:57:26,100 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_ring [2023-11-24 23:57:26,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:57:26,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:57:26,101 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-24 23:57:26,101 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-24 23:57:26,101 INFO L130 BoogieDeclarations]: Found specification of procedure intr_handler [2023-11-24 23:57:26,101 INFO L138 BoogieDeclarations]: Found implementation of procedure intr_handler [2023-11-24 23:57:26,101 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-24 23:57:26,101 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-24 23:57:26,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_netdev_private [2023-11-24 23:57:26,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_netdev_private [2023-11-24 23:57:26,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_68 [2023-11-24 23:57:26,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_68 [2023-11-24 23:57:26,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-24 23:57:26,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-24 23:57:26,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-24 23:57:26,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-24 23:57:26,103 INFO L130 BoogieDeclarations]: Found specification of procedure __get_stats [2023-11-24 23:57:26,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_stats [2023-11-24 23:57:26,103 INFO L130 BoogieDeclarations]: Found specification of procedure set_bufsize [2023-11-24 23:57:26,104 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bufsize [2023-11-24 23:57:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-24 23:57:26,104 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-24 23:57:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2023-11-24 23:57:26,104 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2023-11-24 23:57:26,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_84 [2023-11-24 23:57:26,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_84 [2023-11-24 23:57:26,105 INFO L130 BoogieDeclarations]: Found specification of procedure drain_ring [2023-11-24 23:57:26,105 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_ring [2023-11-24 23:57:26,105 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-24 23:57:26,105 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-24 23:57:26,106 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-24 23:57:26,106 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-24 23:57:26,106 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-24 23:57:26,106 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-24 23:57:26,106 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-24 23:57:26,106 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-24 23:57:26,107 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_remove1 [2023-11-24 23:57:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_remove1 [2023-11-24 23:57:26,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_natsemi_exit_mod_15_2 [2023-11-24 23:57:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_natsemi_exit_mod_15_2 [2023-11-24 23:57:26,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:57:26,107 INFO L130 BoogieDeclarations]: Found specification of procedure init_ring [2023-11-24 23:57:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ring [2023-11-24 23:57:26,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-24 23:57:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-24 23:57:26,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_85 [2023-11-24 23:57:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_85 [2023-11-24 23:57:26,108 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_irq_disable [2023-11-24 23:57:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_irq_disable [2023-11-24 23:57:26,109 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2023-11-24 23:57:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2023-11-24 23:57:26,109 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-24 23:57:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-24 23:57:26,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_69 [2023-11-24 23:57:26,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_69 [2023-11-24 23:57:26,114 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2023-11-24 23:57:26,115 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2023-11-24 23:57:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2023-11-24 23:57:26,115 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2023-11-24 23:57:26,115 INFO L130 BoogieDeclarations]: Found specification of procedure ns_ioaddr [2023-11-24 23:57:26,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_ioaddr [2023-11-24 23:57:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure mii_send_bits [2023-11-24 23:57:26,116 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_send_bits [2023-11-24 23:57:26,116 INFO L130 BoogieDeclarations]: Found specification of procedure refill_rx [2023-11-24 23:57:26,117 INFO L138 BoogieDeclarations]: Found implementation of procedure refill_rx [2023-11-24 23:57:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-24 23:57:26,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-24 23:57:26,118 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2023-11-24 23:57:26,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2023-11-24 23:57:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2023-11-24 23:57:26,119 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2023-11-24 23:57:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure drain_tx [2023-11-24 23:57:26,119 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_tx [2023-11-24 23:57:26,119 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_irq_enable [2023-11-24 23:57:26,120 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_irq_enable [2023-11-24 23:57:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-24 23:57:26,120 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-24 23:57:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:57:26,120 INFO L130 BoogieDeclarations]: Found specification of procedure miiport_read [2023-11-24 23:57:26,120 INFO L138 BoogieDeclarations]: Found implementation of procedure miiport_read [2023-11-24 23:57:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-24 23:57:26,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-24 23:57:26,121 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-11-24 23:57:26,121 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-11-24 23:57:27,159 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:57:27,164 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:57:27,740 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-24 23:57:32,637 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-24 23:57:32,803 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:57:38,287 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:57:38,288 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:57:38,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:57:38 BoogieIcfgContainer [2023-11-24 23:57:38,291 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:57:38,299 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:57:38,299 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:57:38,303 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:57:38,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:57:19" (1/3) ... [2023-11-24 23:57:38,305 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@788459b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:57:38, skipping insertion in model container [2023-11-24 23:57:38,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:24" (2/3) ... [2023-11-24 23:57:38,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@788459b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:57:38, skipping insertion in model container [2023-11-24 23:57:38,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:57:38" (3/3) ... [2023-11-24 23:57:38,307 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i [2023-11-24 23:57:38,331 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:57:38,332 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-24 23:57:38,467 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:57:38,475 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;@5fc31233, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:57:38,475 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-24 23:57:38,489 INFO L276 IsEmpty]: Start isEmpty. Operand has 2070 states, 1144 states have (on average 1.2657342657342658) internal successors, (1448), 1179 states have internal predecessors, (1448), 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) [2023-11-24 23:57:38,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-11-24 23:57:38,522 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:57:38,525 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] [2023-11-24 23:57:38,526 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)] === [2023-11-24 23:57:38,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:57:38,533 INFO L85 PathProgramCache]: Analyzing trace with hash -305116863, now seen corresponding path program 1 times [2023-11-24 23:57:38,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:57:38,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852350398] [2023-11-24 23:57:38,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:38,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:57:39,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:39,722 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2023-11-24 23:57:39,723 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:57:39,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852350398] [2023-11-24 23:57:39,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852350398] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:57:39,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:57:39,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:57:39,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594420659] [2023-11-24 23:57:39,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:57:39,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:57:39,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:57:39,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:57:39,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:57:39,790 INFO L87 Difference]: Start difference. First operand has 2070 states, 1144 states have (on average 1.2657342657342658) internal successors, (1448), 1179 states have internal predecessors, (1448), 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) [2023-11-24 23:57:46,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:57:49,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:57:50,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:57:50,157 INFO L93 Difference]: Finished difference Result 6072 states and 9033 transitions. [2023-11-24 23:57:50,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:57:50,164 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 [2023-11-24 23:57:50,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:57:50,268 INFO L225 Difference]: With dead ends: 6072 [2023-11-24 23:57:50,268 INFO L226 Difference]: Without dead ends: 4023 [2023-11-24 23:57:50,296 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 [2023-11-24 23:57:50,495 INFO L413 NwaCegarLoop]: 2653 mSDtfsCounter, 2895 mSDsluCounter, 2606 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2895 SdHoareTripleChecker+Valid, 5259 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2023-11-24 23:57:50,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2895 Valid, 5259 Invalid, 785 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 777 Invalid, 1 Unknown, 0 Unchecked, 9.8s Time] [2023-11-24 23:57:50,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4023 states. [2023-11-24 23:57:50,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4023 to 4019. [2023-11-24 23:57:50,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4019 states, 2234 states have (on average 1.2618621307072515) internal successors, (2819), 2303 states have internal predecessors, (2819), 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) [2023-11-24 23:57:50,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4019 states to 4019 states and 5871 transitions. [2023-11-24 23:57:50,963 INFO L78 Accepts]: Start accepts. Automaton has 4019 states and 5871 transitions. Word has length 171 [2023-11-24 23:57:50,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:57:50,965 INFO L495 AbstractCegarLoop]: Abstraction has 4019 states and 5871 transitions. [2023-11-24 23:57:50,966 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) [2023-11-24 23:57:50,966 INFO L276 IsEmpty]: Start isEmpty. Operand 4019 states and 5871 transitions. [2023-11-24 23:57:50,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-24 23:57:50,973 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:57:50,973 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] [2023-11-24 23:57:50,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:57:50,974 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)] === [2023-11-24 23:57:50,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:57:50,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1787423481, now seen corresponding path program 1 times [2023-11-24 23:57:50,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:57:50,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034231070] [2023-11-24 23:57:50,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:50,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:57:51,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:51,326 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2023-11-24 23:57:51,326 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:57:51,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034231070] [2023-11-24 23:57:51,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034231070] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:57:51,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:57:51,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:57:51,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527155526] [2023-11-24 23:57:51,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:57:51,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:57:51,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:57:51,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:57:51,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:57:51,336 INFO L87 Difference]: Start difference. First operand 4019 states and 5871 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) [2023-11-24 23:57:57,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:57:57,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:57:57,837 INFO L93 Difference]: Finished difference Result 11179 states and 16261 transitions. [2023-11-24 23:57:57,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:57:57,838 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 [2023-11-24 23:57:57,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:57:57,924 INFO L225 Difference]: With dead ends: 11179 [2023-11-24 23:57:57,925 INFO L226 Difference]: Without dead ends: 7191 [2023-11-24 23:57:57,953 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 [2023-11-24 23:57:57,955 INFO L413 NwaCegarLoop]: 2632 mSDtfsCounter, 2330 mSDsluCounter, 2568 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2330 SdHoareTripleChecker+Valid, 5200 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:57:57,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2330 Valid, 5200 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-11-24 23:57:57,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7191 states. [2023-11-24 23:57:58,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7191 to 7162. [2023-11-24 23:57:58,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7162 states, 3942 states have (on average 1.249873160832065) internal successors, (4927), 4070 states have internal predecessors, (4927), 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) [2023-11-24 23:57:58,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7162 states to 7162 states and 10389 transitions. [2023-11-24 23:57:58,647 INFO L78 Accepts]: Start accepts. Automaton has 7162 states and 10389 transitions. Word has length 179 [2023-11-24 23:57:58,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:57:58,650 INFO L495 AbstractCegarLoop]: Abstraction has 7162 states and 10389 transitions. [2023-11-24 23:57:58,651 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) [2023-11-24 23:57:58,651 INFO L276 IsEmpty]: Start isEmpty. Operand 7162 states and 10389 transitions. [2023-11-24 23:57:58,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-11-24 23:57:58,662 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:57:58,662 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] [2023-11-24 23:57:58,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:57:58,663 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)] === [2023-11-24 23:57:58,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:57:58,664 INFO L85 PathProgramCache]: Analyzing trace with hash -314708896, now seen corresponding path program 1 times [2023-11-24 23:57:58,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:57:58,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329775353] [2023-11-24 23:57:58,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:57:58,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:57:58,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:57:59,326 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2023-11-24 23:57:59,326 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:57:59,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329775353] [2023-11-24 23:57:59,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329775353] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:57:59,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:57:59,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:57:59,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231828973] [2023-11-24 23:57:59,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:57:59,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:57:59,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:57:59,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:57:59,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:57:59,331 INFO L87 Difference]: Start difference. First operand 7162 states and 10389 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)