./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-via-via-rhine.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ccad774-044d-4460-adda-25e625076616/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ccad774-044d-4460-adda-25e625076616/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ccad774-044d-4460-adda-25e625076616/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ccad774-044d-4460-adda-25e625076616/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ccad774-044d-4460-adda-25e625076616/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ccad774-044d-4460-adda-25e625076616/bin/utaipan-verify-sOmjnqqW8E --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 58d15a5feb7af6647b099d75992dc6c7c20191bdb135a07030e94ab68f234062 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:21:34,304 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:21:34,386 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ccad774-044d-4460-adda-25e625076616/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 03:21:34,391 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:21:34,391 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:21:34,416 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:21:34,417 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:21:34,417 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:21:34,417 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:21:34,417 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:21:34,417 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:21:34,417 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:21:34,418 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:21:34,418 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:21:34,418 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:21:34,418 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:21:34,418 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:21:34,418 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:21:34,418 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:21:34,418 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:21:34,419 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:21:34,419 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:21:34,419 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:21:34,419 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:21:34,419 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:21:34,419 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:21:34,420 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:21:34,420 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:21:34,420 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:21:34,420 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:21:34,420 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:21:34,420 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:21:34,420 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:21:34,421 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:21:34,421 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:21:34,421 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:21:34,421 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:21:34,421 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:21:34,421 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:21:34,421 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:21:34,421 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:21:34,422 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:21:34,422 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:21:34,422 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:21:34,422 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_0ccad774-044d-4460-adda-25e625076616/bin/utaipan-verify-sOmjnqqW8E 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 -> 58d15a5feb7af6647b099d75992dc6c7c20191bdb135a07030e94ab68f234062 [2024-11-14 03:21:34,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:21:34,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:21:34,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:21:34,775 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:21:34,776 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:21:34,777 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ccad774-044d-4460-adda-25e625076616/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i Unable to find full path for "g++" [2024-11-14 03:21:36,681 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:21:37,684 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:21:37,689 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ccad774-044d-4460-adda-25e625076616/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i [2024-11-14 03:21:37,755 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ccad774-044d-4460-adda-25e625076616/bin/utaipan-verify-sOmjnqqW8E/data/c2672450b/c17d6b995b384058bd085a225c06a435/FLAGaafea95b6 [2024-11-14 03:21:38,253 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ccad774-044d-4460-adda-25e625076616/bin/utaipan-verify-sOmjnqqW8E/data/c2672450b/c17d6b995b384058bd085a225c06a435 [2024-11-14 03:21:38,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:21:38,258 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:21:38,259 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:21:38,260 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:21:38,265 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:21:38,266 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:21:38" (1/1) ... [2024-11-14 03:21:38,267 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a71217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:21:38, skipping insertion in model container [2024-11-14 03:21:38,267 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:21:38" (1/1) ... [2024-11-14 03:21:38,456 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:21:42,391 WARN L250 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_0ccad774-044d-4460-adda-25e625076616/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404089,404102] [2024-11-14 03:21:42,396 WARN L250 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_0ccad774-044d-4460-adda-25e625076616/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404258,404271] [2024-11-14 03:21:42,397 WARN L250 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_0ccad774-044d-4460-adda-25e625076616/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404425,404438] [2024-11-14 03:21:42,397 WARN L250 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_0ccad774-044d-4460-adda-25e625076616/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404593,404606] [2024-11-14 03:21:42,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:21:42,524 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:21:42,666 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"); [5331] [2024-11-14 03:21:42,668 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)); [5338] [2024-11-14 03:21:42,669 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5345] [2024-11-14 03:21:42,673 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)); [5416-5417] [2024-11-14 03:21:42,673 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"); [5422-5424] [2024-11-14 03:21:42,678 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %1,%0": "=q" (ret): "m" (*((unsigned char volatile *)addr)): "memory"); [5602] [2024-11-14 03:21:42,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5616] [2024-11-14 03:21:42,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5624] [2024-11-14 03:21:42,686 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)); [5716-5717] [2024-11-14 03:21:42,688 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)); [5750-5751] [2024-11-14 03:21:42,690 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)); [5787-5788] [2024-11-14 03:21:42,691 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)); [5824-5825] [2024-11-14 03:21:42,703 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)); [6171-6172] [2024-11-14 03:21:42,704 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6178] [2024-11-14 03:21:42,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "m" (cpu_number)); [6420] [2024-11-14 03:21:42,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [6423] [2024-11-14 03:21:42,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [6426] [2024-11-14 03:21:42,711 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [6429] [2024-11-14 03:21:42,711 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret_____0): "m" (cpu_number)); [6460] [2024-11-14 03:21:42,712 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [6463] [2024-11-14 03:21:42,712 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [6466] [2024-11-14 03:21:42,712 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [6469] [2024-11-14 03:21:42,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret_____1): "m" (cpu_number)); [6500] [2024-11-14 03:21:42,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [6503] [2024-11-14 03:21:42,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [6506] [2024-11-14 03:21:42,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [6509] [2024-11-14 03:21:42,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret_____2): "m" (cpu_number)); [6540] [2024-11-14 03:21:42,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [6543] [2024-11-14 03:21:42,715 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [6546] [2024-11-14 03:21:42,715 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [6549] [2024-11-14 03:21:42,732 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6993] [2024-11-14 03:21:42,754 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7407] [2024-11-14 03:21:42,789 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8080] [2024-11-14 03:21:42,791 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8099] [2024-11-14 03:21:42,791 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8112] [2024-11-14 03:21:42,792 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8117] [2024-11-14 03:21:42,793 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8130] [2024-11-14 03:21:42,794 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8142] [2024-11-14 03:21:42,846 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8668] [2024-11-14 03:21:42,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8670] [2024-11-14 03:21:42,852 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8717] [2024-11-14 03:21:43,159 WARN L250 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_0ccad774-044d-4460-adda-25e625076616/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404089,404102] [2024-11-14 03:21:43,160 WARN L250 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_0ccad774-044d-4460-adda-25e625076616/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404258,404271] [2024-11-14 03:21:43,160 WARN L250 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_0ccad774-044d-4460-adda-25e625076616/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404425,404438] [2024-11-14 03:21:43,161 WARN L250 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_0ccad774-044d-4460-adda-25e625076616/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i[404593,404606] [2024-11-14 03:21:43,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:21:43,657 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:21:43,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:21:43 WrapperNode [2024-11-14 03:21:43,658 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:21:43,660 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:21:43,662 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:21:43,662 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:21:43,670 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:21:43" (1/1) ... [2024-11-14 03:21:43,804 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:21:43" (1/1) ... [2024-11-14 03:21:44,191 INFO L138 Inliner]: procedures = 559, calls = 3409, calls flagged for inlining = 292, calls inlined = 254, statements flattened = 7103 [2024-11-14 03:21:44,192 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:21:44,193 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:21:44,193 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:21:44,193 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:21:44,205 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:21:43" (1/1) ... [2024-11-14 03:21:44,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:21:43" (1/1) ... [2024-11-14 03:21:44,267 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:21:43" (1/1) ... [2024-11-14 03:21:44,267 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:21:43" (1/1) ... [2024-11-14 03:21:44,471 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:21:43" (1/1) ... [2024-11-14 03:21:44,521 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:21:43" (1/1) ... [2024-11-14 03:21:44,581 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:21:43" (1/1) ... [2024-11-14 03:21:44,616 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:21:43" (1/1) ... [2024-11-14 03:21:44,683 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:21:44,684 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:21:44,684 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:21:44,684 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:21:44,686 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:21:43" (1/1) ... [2024-11-14 03:21:44,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:21:44,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ccad774-044d-4460-adda-25e625076616/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:21:44,808 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ccad774-044d-4460-adda-25e625076616/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:21:44,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ccad774-044d-4460-adda-25e625076616/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:21:44,856 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2024-11-14 03:21:44,856 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2024-11-14 03:21:44,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-14 03:21:44,857 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-14 03:21:44,857 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2024-11-14 03:21:44,858 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2024-11-14 03:21:44,858 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-14 03:21:44,858 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-14 03:21:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-14 03:21:44,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-14 03:21:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2024-11-14 03:21:44,859 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2024-11-14 03:21:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-14 03:21:44,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-14 03:21:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure free_tbufs [2024-11-14 03:21:44,859 INFO L138 BoogieDeclarations]: Found implementation of procedure free_tbufs [2024-11-14 03:21:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_80 [2024-11-14 03:21:44,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_80 [2024-11-14 03:21:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2024-11-14 03:21:44,859 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2024-11-14 03:21:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2024-11-14 03:21:44,859 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2024-11-14 03:21:44,859 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2024-11-14 03:21:44,859 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2024-11-14 03:21:44,860 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-11-14 03:21:44,860 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-11-14 03:21:44,860 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2024-11-14 03:21:44,860 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2024-11-14 03:21:44,860 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_poll [2024-11-14 03:21:44,860 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_poll [2024-11-14 03:21:44,860 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2024-11-14 03:21:44,860 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2024-11-14 03:21:44,860 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2024-11-14 03:21:44,860 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2024-11-14 03:21:44,860 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2024-11-14 03:21:44,860 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2024-11-14 03:21:44,860 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2024-11-14 03:21:44,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2024-11-14 03:21:44,860 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_wait_bit_low [2024-11-14 03:21:44,860 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_wait_bit_low [2024-11-14 03:21:44,861 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2024-11-14 03:21:44,861 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2024-11-14 03:21:44,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-11-14 03:21:44,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-11-14 03:21:44,861 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2024-11-14 03:21:44,861 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2024-11-14 03:21:44,861 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2024-11-14 03:21:44,861 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2024-11-14 03:21:44,861 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2024-11-14 03:21:44,866 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2024-11-14 03:21:44,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-14 03:21:44,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-14 03:21:44,866 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2024-11-14 03:21:44,866 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2024-11-14 03:21:44,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 03:21:44,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_62 [2024-11-14 03:21:44,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_62 [2024-11-14 03:21:44,866 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2024-11-14 03:21:44,866 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2024-11-14 03:21:44,866 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_wait_bit [2024-11-14 03:21:44,866 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_wait_bit [2024-11-14 03:21:44,867 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-14 03:21:44,867 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-14 03:21:44,867 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-11-14 03:21:44,867 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-11-14 03:21:44,867 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-14 03:21:44,867 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-14 03:21:44,867 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_rbufs [2024-11-14 03:21:44,867 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_rbufs [2024-11-14 03:21:44,867 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2024-11-14 03:21:44,867 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2024-11-14 03:21:44,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-14 03:21:44,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-11-14 03:21:44,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-11-14 03:21:44,867 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_interrupt [2024-11-14 03:21:44,867 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_interrupt [2024-11-14 03:21:44,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 03:21:44,867 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2024-11-14 03:21:44,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2024-11-14 03:21:44,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2024-11-14 03:21:44,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2024-11-14 03:21:44,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2024-11-14 03:21:44,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2024-11-14 03:21:44,868 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_task_disable [2024-11-14 03:21:44,868 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_task_disable [2024-11-14 03:21:44,868 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2024-11-14 03:21:44,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2024-11-14 03:21:44,868 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2024-11-14 03:21:44,868 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2024-11-14 03:21:44,868 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2024-11-14 03:21:44,868 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2024-11-14 03:21:44,868 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_carrier [2024-11-14 03:21:44,868 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_carrier [2024-11-14 03:21:44,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-14 03:21:44,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-14 03:21:44,869 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_shutdown [2024-11-14 03:21:44,869 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_shutdown [2024-11-14 03:21:44,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 03:21:44,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2024-11-14 03:21:44,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2024-11-14 03:21:44,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2024-11-14 03:21:44,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2024-11-14 03:21:44,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2024-11-14 03:21:44,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2024-11-14 03:21:44,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2024-11-14 03:21:44,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2024-11-14 03:21:44,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:21:44,874 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2024-11-14 03:21:44,875 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2024-11-14 03:21:44,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-14 03:21:44,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-14 03:21:44,875 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-14 03:21:44,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-14 03:21:44,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 03:21:44,875 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2024-11-14 03:21:44,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __bad_percpu_size [2024-11-14 03:21:44,876 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2024-11-14 03:21:44,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2024-11-14 03:21:44,877 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-14 03:21:44,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-14 03:21:44,877 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_rx_mode [2024-11-14 03:21:44,877 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_rx_mode [2024-11-14 03:21:44,877 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-11-14 03:21:44,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-11-14 03:21:44,878 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_update_rx_crc_and_missed_errord [2024-11-14 03:21:44,878 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_update_rx_crc_and_missed_errord [2024-11-14 03:21:44,878 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2024-11-14 03:21:44,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2024-11-14 03:21:44,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rhine_private [2024-11-14 03:21:44,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rhine_private [2024-11-14 03:21:44,879 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2024-11-14 03:21:44,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2024-11-14 03:21:44,879 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2024-11-14 03:21:44,879 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2024-11-14 03:21:44,879 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-11-14 03:21:44,880 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-11-14 03:21:44,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2024-11-14 03:21:44,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2024-11-14 03:21:44,880 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2024-11-14 03:21:44,880 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2024-11-14 03:21:44,880 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-14 03:21:44,880 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-14 03:21:44,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_68 [2024-11-14 03:21:44,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_68 [2024-11-14 03:21:44,880 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_power_init [2024-11-14 03:21:44,880 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_power_init [2024-11-14 03:21:44,880 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_tx_timeout [2024-11-14 03:21:44,883 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_tx_timeout [2024-11-14 03:21:44,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rhine_private [2024-11-14 03:21:44,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rhine_private [2024-11-14 03:21:44,884 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2024-11-14 03:21:44,884 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2024-11-14 03:21:44,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:21:44,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:21:44,884 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2024-11-14 03:21:44,884 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2024-11-14 03:21:44,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-14 03:21:44,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-14 03:21:44,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-14 03:21:44,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-14 03:21:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-14 03:21:44,885 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_chip_reset [2024-11-14 03:21:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_chip_reset [2024-11-14 03:21:44,885 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-14 03:21:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-14 03:21:44,885 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2024-11-14 03:21:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2024-11-14 03:21:44,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-14 03:21:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-14 03:21:44,885 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_cam_mask [2024-11-14 03:21:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_cam_mask [2024-11-14 03:21:44,885 INFO L130 BoogieDeclarations]: Found specification of procedure init_registers [2024-11-14 03:21:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure init_registers [2024-11-14 03:21:44,885 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-14 03:21:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-14 03:21:44,885 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_remove_one [2024-11-14 03:21:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_remove_one [2024-11-14 03:21:44,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2024-11-14 03:21:44,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2024-11-14 03:21:44,885 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2024-11-14 03:21:44,886 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2024-11-14 03:21:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_close [2024-11-14 03:21:44,886 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_close [2024-11-14 03:21:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_79 [2024-11-14 03:21:44,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_79 [2024-11-14 03:21:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-11-14 03:21:44,886 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-11-14 03:21:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 03:21:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2024-11-14 03:21:44,886 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2024-11-14 03:21:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2024-11-14 03:21:44,886 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2024-11-14 03:21:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 03:21:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_check_media [2024-11-14 03:21:44,886 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_check_media [2024-11-14 03:21:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rhine_cleanup_14_2 [2024-11-14 03:21:44,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rhine_cleanup_14_2 [2024-11-14 03:21:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-14 03:21:44,886 INFO L130 BoogieDeclarations]: Found specification of procedure free_rbufs [2024-11-14 03:21:44,886 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rbufs [2024-11-14 03:21:44,887 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-14 03:21:44,887 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-14 03:21:44,887 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_get_events [2024-11-14 03:21:44,887 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_get_events [2024-11-14 03:21:44,887 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2024-11-14 03:21:44,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2024-11-14 03:21:44,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2024-11-14 03:21:44,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2024-11-14 03:21:44,887 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-14 03:21:44,887 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-14 03:21:44,889 INFO L130 BoogieDeclarations]: Found specification of procedure enable_mmio [2024-11-14 03:21:44,889 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_mmio [2024-11-14 03:21:44,889 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_set_vlan_cam_mask [2024-11-14 03:21:44,890 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_set_vlan_cam_mask [2024-11-14 03:21:44,890 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2024-11-14 03:21:44,890 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2024-11-14 03:21:44,890 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2024-11-14 03:21:44,890 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2024-11-14 03:21:44,890 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2024-11-14 03:21:44,890 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2024-11-14 03:21:44,890 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-14 03:21:44,890 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-14 03:21:44,890 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-14 03:21:44,890 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-14 03:21:44,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-11-14 03:21:44,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-11-14 03:21:44,890 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2024-11-14 03:21:44,891 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2024-11-14 03:21:44,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2024-11-14 03:21:44,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2024-11-14 03:21:44,891 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-14 03:21:44,891 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-14 03:21:44,891 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-11-14 03:21:44,891 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-11-14 03:21:44,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_63 [2024-11-14 03:21:44,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_63 [2024-11-14 03:21:44,891 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_disable_linkmon [2024-11-14 03:21:44,891 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_disable_linkmon [2024-11-14 03:21:44,891 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_ack_events [2024-11-14 03:21:44,891 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_ack_events [2024-11-14 03:21:44,891 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-14 03:21:44,891 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-14 03:21:44,891 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_resume [2024-11-14 03:21:44,892 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_resume [2024-11-14 03:21:44,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 03:21:44,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_67 [2024-11-14 03:21:44,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_67 [2024-11-14 03:21:44,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-14 03:21:44,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-14 03:21:44,896 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2024-11-14 03:21:44,896 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2024-11-14 03:21:44,896 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2024-11-14 03:21:44,896 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2024-11-14 03:21:44,896 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_wait_bit_high [2024-11-14 03:21:44,896 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_wait_bit_high [2024-11-14 03:21:44,896 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_irq_disable [2024-11-14 03:21:44,896 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_irq_disable [2024-11-14 03:21:44,896 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_task_enable [2024-11-14 03:21:44,896 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_task_enable [2024-11-14 03:21:44,896 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_tbufs [2024-11-14 03:21:44,896 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_tbufs [2024-11-14 03:21:44,897 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2024-11-14 03:21:44,897 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2024-11-14 03:21:44,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-11-14 03:21:44,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-11-14 03:21:44,897 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2024-11-14 03:21:44,897 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2024-11-14 03:21:44,897 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2024-11-14 03:21:44,897 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2024-11-14 03:21:44,897 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_enable_linkmon [2024-11-14 03:21:44,897 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_enable_linkmon [2024-11-14 03:21:44,897 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_update_vcam [2024-11-14 03:21:44,897 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_update_vcam [2024-11-14 03:21:44,897 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-14 03:21:44,897 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-14 03:21:44,897 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2024-11-14 03:21:44,897 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2024-11-14 03:21:44,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:21:44,897 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_suspend [2024-11-14 03:21:44,897 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_suspend [2024-11-14 03:21:44,898 INFO L130 BoogieDeclarations]: Found specification of procedure rhine_open [2024-11-14 03:21:44,898 INFO L138 BoogieDeclarations]: Found implementation of procedure rhine_open [2024-11-14 03:21:44,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-11-14 03:21:44,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-11-14 03:21:46,457 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:21:46,463 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:21:46,853 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-14 03:22:03,207 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-11-14 03:22:04,325 INFO L? ?]: Removed 2824 outVars from TransFormulas that were not future-live. [2024-11-14 03:22:04,325 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:22:07,321 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:22:07,321 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-14 03:22:07,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:22:07 BoogieIcfgContainer [2024-11-14 03:22:07,322 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:22:07,325 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:22:07,325 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:22:07,331 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:22:07,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:21:38" (1/3) ... [2024-11-14 03:22:07,332 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bea297f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:22:07, skipping insertion in model container [2024-11-14 03:22:07,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:21:43" (2/3) ... [2024-11-14 03:22:07,332 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bea297f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:22:07, skipping insertion in model container [2024-11-14 03:22:07,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:22:07" (3/3) ... [2024-11-14 03:22:07,334 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i [2024-11-14 03:22:07,367 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:22:07,373 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-rhine.cil.i that has 136 procedures, 1820 locations, 1 initial locations, 1 loop locations, and 3 error locations. [2024-11-14 03:22:07,576 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:22:07,589 INFO L333 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, 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;@37bde502, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:22:07,589 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-14 03:22:07,606 INFO L276 IsEmpty]: Start isEmpty. Operand has 1818 states, 1045 states have (on average 1.3177033492822967) internal successors, (1377), 1091 states have internal predecessors, (1377), 637 states have call successors, (637), 135 states have call predecessors, (637), 134 states have return successors, (628), 617 states have call predecessors, (628), 628 states have call successors, (628) [2024-11-14 03:22:07,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-14 03:22:07,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:22:07,640 INFO L215 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:22:07,640 INFO L396 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)] === [2024-11-14 03:22:07,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:22:07,646 INFO L85 PathProgramCache]: Analyzing trace with hash 651477920, now seen corresponding path program 1 times [2024-11-14 03:22:07,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:22:07,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665340233] [2024-11-14 03:22:07,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:22:07,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:22:17,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:22:19,213 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 759 trivial. 0 not checked. [2024-11-14 03:22:19,215 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:22:19,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665340233] [2024-11-14 03:22:19,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665340233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:22:19,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:22:19,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:22:19,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818544370] [2024-11-14 03:22:19,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:22:19,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:22:19,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:22:19,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:22:19,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:22:19,260 INFO L87 Difference]: Start difference. First operand has 1818 states, 1045 states have (on average 1.3177033492822967) internal successors, (1377), 1091 states have internal predecessors, (1377), 637 states have call successors, (637), 135 states have call predecessors, (637), 134 states have return successors, (628), 617 states have call predecessors, (628), 628 states have call successors, (628) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-14 03:22:21,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:22:23,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:22:31,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:22:31,058 INFO L93 Difference]: Finished difference Result 5248 states and 7773 transitions. [2024-11-14 03:22:31,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:22:31,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 164 [2024-11-14 03:22:31,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:22:31,114 INFO L225 Difference]: With dead ends: 5248 [2024-11-14 03:22:31,114 INFO L226 Difference]: Without dead ends: 3446 [2024-11-14 03:22:31,133 INFO L431 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 [2024-11-14 03:22:31,136 INFO L432 NwaCegarLoop]: 2187 mSDtfsCounter, 2452 mSDsluCounter, 2128 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2452 SdHoareTripleChecker+Valid, 4315 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:22:31,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2452 Valid, 4315 Invalid, 834 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 823 Invalid, 2 Unknown, 0 Unchecked, 11.3s Time] [2024-11-14 03:22:31,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3446 states. [2024-11-14 03:22:31,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3446 to 3442. [2024-11-14 03:22:31,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3442 states, 1982 states have (on average 1.2971745711402625) internal successors, (2571), 2063 states have internal predecessors, (2571), 1195 states have call successors, (1195), 263 states have call predecessors, (1195), 262 states have return successors, (1191), 1169 states have call predecessors, (1191), 1191 states have call successors, (1191) [2024-11-14 03:22:31,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3442 states to 3442 states and 4957 transitions. [2024-11-14 03:22:31,573 INFO L78 Accepts]: Start accepts. Automaton has 3442 states and 4957 transitions. Word has length 164 [2024-11-14 03:22:31,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:22:31,574 INFO L471 AbstractCegarLoop]: Abstraction has 3442 states and 4957 transitions. [2024-11-14 03:22:31,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-14 03:22:31,575 INFO L276 IsEmpty]: Start isEmpty. Operand 3442 states and 4957 transitions. [2024-11-14 03:22:31,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-14 03:22:31,589 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:22:31,590 INFO L215 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:22:31,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:22:31,590 INFO L396 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)] === [2024-11-14 03:22:31,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:22:31,591 INFO L85 PathProgramCache]: Analyzing trace with hash -615886426, now seen corresponding path program 1 times [2024-11-14 03:22:31,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:22:31,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619051536] [2024-11-14 03:22:31,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:22:31,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:22:40,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:22:41,525 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2024-11-14 03:22:41,528 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:22:41,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619051536] [2024-11-14 03:22:41,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619051536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:22:41,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:22:41,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:22:41,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826899669] [2024-11-14 03:22:41,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:22:41,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:22:41,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:22:41,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:22:41,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:22:41,533 INFO L87 Difference]: Start difference. First operand 3442 states and 4957 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-14 03:22:43,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:22:45,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:22:56,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:22:56,614 INFO L93 Difference]: Finished difference Result 9732 states and 13957 transitions. [2024-11-14 03:22:56,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:22:56,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 169 [2024-11-14 03:22:56,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:22:56,686 INFO L225 Difference]: With dead ends: 9732 [2024-11-14 03:22:56,686 INFO L226 Difference]: Without dead ends: 6319 [2024-11-14 03:22:56,708 INFO L431 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 [2024-11-14 03:22:56,709 INFO L432 NwaCegarLoop]: 2162 mSDtfsCounter, 2100 mSDsluCounter, 2101 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2100 SdHoareTripleChecker+Valid, 4263 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:22:56,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2100 Valid, 4263 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 847 Invalid, 2 Unknown, 0 Unchecked, 14.5s Time] [2024-11-14 03:22:56,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6319 states. [2024-11-14 03:22:57,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6319 to 6290. [2024-11-14 03:22:57,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6290 states, 3613 states have (on average 1.2886797675062276) internal successors, (4656), 3767 states have internal predecessors, (4656), 2171 states have call successors, (2171), 506 states have call predecessors, (2171), 503 states have return successors, (2169), 2116 states have call predecessors, (2169), 2167 states have call successors, (2169) [2024-11-14 03:22:57,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6290 states to 6290 states and 8996 transitions. [2024-11-14 03:22:57,209 INFO L78 Accepts]: Start accepts. Automaton has 6290 states and 8996 transitions. Word has length 169 [2024-11-14 03:22:57,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:22:57,210 INFO L471 AbstractCegarLoop]: Abstraction has 6290 states and 8996 transitions. [2024-11-14 03:22:57,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-14 03:22:57,211 INFO L276 IsEmpty]: Start isEmpty. Operand 6290 states and 8996 transitions. [2024-11-14 03:22:57,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-14 03:22:57,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:22:57,226 INFO L215 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:22:57,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 03:22:57,226 INFO L396 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)] === [2024-11-14 03:22:57,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:22:57,226 INFO L85 PathProgramCache]: Analyzing trace with hash -2128292757, now seen corresponding path program 1 times [2024-11-14 03:22:57,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:22:57,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728765095] [2024-11-14 03:22:57,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:22:57,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:08,362 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 758 trivial. 0 not checked. [2024-11-14 03:23:08,365 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:23:08,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728765095] [2024-11-14 03:23:08,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728765095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:23:08,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:23:08,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:23:08,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064105593] [2024-11-14 03:23:08,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:23:08,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:23:08,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:23:08,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:23:08,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:23:08,368 INFO L87 Difference]: Start difference. First operand 6290 states and 8996 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-14 03:23:10,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:23:12,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:23:21,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:23:21,258 INFO L93 Difference]: Finished difference Result 17980 states and 25658 transitions. [2024-11-14 03:23:21,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:23:21,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 186 [2024-11-14 03:23:21,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:23:21,402 INFO L225 Difference]: With dead ends: 17980 [2024-11-14 03:23:21,402 INFO L226 Difference]: Without dead ends: 11719 [2024-11-14 03:23:21,449 INFO L431 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 [2024-11-14 03:23:21,452 INFO L432 NwaCegarLoop]: 2438 mSDtfsCounter, 2176 mSDsluCounter, 2100 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 29 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2176 SdHoareTripleChecker+Valid, 4538 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:23:21,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2176 Valid, 4538 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 924 Invalid, 2 Unknown, 0 Unchecked, 12.5s Time] [2024-11-14 03:23:21,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11719 states. [2024-11-14 03:23:22,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11719 to 11686. [2024-11-14 03:23:22,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11686 states, 6679 states have (on average 1.2738433897290014) internal successors, (8508), 6957 states have internal predecessors, (8508), 4023 states have call successors, (4023), 986 states have call predecessors, (4023), 981 states have return successors, (4021), 3922 states have call predecessors, (4021), 4019 states have call successors, (4021) [2024-11-14 03:23:22,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11686 states to 11686 states and 16552 transitions. [2024-11-14 03:23:22,303 INFO L78 Accepts]: Start accepts. Automaton has 11686 states and 16552 transitions. Word has length 186 [2024-11-14 03:23:22,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:23:22,305 INFO L471 AbstractCegarLoop]: Abstraction has 11686 states and 16552 transitions. [2024-11-14 03:23:22,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-14 03:23:22,306 INFO L276 IsEmpty]: Start isEmpty. Operand 11686 states and 16552 transitions. [2024-11-14 03:23:22,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-14 03:23:22,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:22,313 INFO L215 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:23:22,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 03:23:22,314 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-14 03:23:22,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:22,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1076744271, now seen corresponding path program 1 times [2024-11-14 03:23:22,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:23:22,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639028268] [2024-11-14 03:23:22,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:22,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:31,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:32,170 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 758 trivial. 0 not checked. [2024-11-14 03:23:32,171 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:23:32,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639028268] [2024-11-14 03:23:32,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639028268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:23:32,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:23:32,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:23:32,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596558260] [2024-11-14 03:23:32,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:23:32,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:23:32,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:23:32,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:23:32,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:23:32,174 INFO L87 Difference]: Start difference. First operand 11686 states and 16552 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-14 03:23:34,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:23:36,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:23:44,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:23:44,996 INFO L93 Difference]: Finished difference Result 24709 states and 34890 transitions. [2024-11-14 03:23:44,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:23:44,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 181 [2024-11-14 03:23:44,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:23:45,100 INFO L225 Difference]: With dead ends: 24709 [2024-11-14 03:23:45,101 INFO L226 Difference]: Without dead ends: 13052 [2024-11-14 03:23:45,159 INFO L431 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 [2024-11-14 03:23:45,160 INFO L432 NwaCegarLoop]: 2573 mSDtfsCounter, 2139 mSDsluCounter, 2113 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2139 SdHoareTripleChecker+Valid, 4686 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:23:45,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2139 Valid, 4686 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 959 Invalid, 2 Unknown, 0 Unchecked, 12.3s Time] [2024-11-14 03:23:45,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13052 states. [2024-11-14 03:23:45,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13052 to 13021. [2024-11-14 03:23:45,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13021 states, 7457 states have (on average 1.2661928389432748) internal successors, (9442), 7768 states have internal predecessors, (9442), 4406 states have call successors, (4406), 1163 states have call predecessors, (4406), 1155 states have return successors, (4404), 4278 states have call predecessors, (4404), 4402 states have call successors, (4404) [2024-11-14 03:23:45,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13021 states to 13021 states and 18252 transitions. [2024-11-14 03:23:46,024 INFO L78 Accepts]: Start accepts. Automaton has 13021 states and 18252 transitions. Word has length 181 [2024-11-14 03:23:46,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:23:46,028 INFO L471 AbstractCegarLoop]: Abstraction has 13021 states and 18252 transitions. [2024-11-14 03:23:46,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-14 03:23:46,029 INFO L276 IsEmpty]: Start isEmpty. Operand 13021 states and 18252 transitions. [2024-11-14 03:23:46,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-14 03:23:46,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:46,040 INFO L215 NwaCegarLoop]: trace histogram [16, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:23:46,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 03:23:46,042 INFO L396 AbstractCegarLoop]: === Iteration 5 === 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)] === [2024-11-14 03:23:46,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:46,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1129946332, now seen corresponding path program 1 times [2024-11-14 03:23:46,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:23:46,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441798530] [2024-11-14 03:23:46,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:46,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:55,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:23:56,172 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 788 trivial. 0 not checked. [2024-11-14 03:23:56,172 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:23:56,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441798530] [2024-11-14 03:23:56,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441798530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:23:56,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:23:56,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:23:56,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262814003] [2024-11-14 03:23:56,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:23:56,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:23:56,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:23:56,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:23:56,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:23:56,176 INFO L87 Difference]: Start difference. First operand 13021 states and 18252 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-14 03:23:58,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:24:00,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:24:10,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:24:12,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:24:12,713 INFO L93 Difference]: Finished difference Result 35277 states and 49494 transitions. [2024-11-14 03:24:12,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:24:12,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 206 [2024-11-14 03:24:12,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:24:12,905 INFO L225 Difference]: With dead ends: 35277 [2024-11-14 03:24:12,906 INFO L226 Difference]: Without dead ends: 22285 [2024-11-14 03:24:12,993 INFO L431 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 [2024-11-14 03:24:12,994 INFO L432 NwaCegarLoop]: 2660 mSDtfsCounter, 2421 mSDsluCounter, 2128 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2421 SdHoareTripleChecker+Valid, 4788 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:24:12,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2421 Valid, 4788 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 939 Invalid, 2 Unknown, 0 Unchecked, 15.2s Time] [2024-11-14 03:24:13,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22285 states. [2024-11-14 03:24:14,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22285 to 22244. [2024-11-14 03:24:14,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22244 states, 12751 states have (on average 1.2635871696337542) internal successors, (16112), 13303 states have internal predecessors, (16112), 7517 states have call successors, (7517), 1988 states have call predecessors, (7517), 1973 states have return successors, (7517), 7281 states have call predecessors, (7517), 7513 states have call successors, (7517) [2024-11-14 03:24:14,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22244 states to 22244 states and 31146 transitions. [2024-11-14 03:24:14,491 INFO L78 Accepts]: Start accepts. Automaton has 22244 states and 31146 transitions. Word has length 206 [2024-11-14 03:24:14,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:24:14,492 INFO L471 AbstractCegarLoop]: Abstraction has 22244 states and 31146 transitions. [2024-11-14 03:24:14,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-14 03:24:14,493 INFO L276 IsEmpty]: Start isEmpty. Operand 22244 states and 31146 transitions. [2024-11-14 03:24:14,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-14 03:24:14,499 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:24:14,500 INFO L215 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:24:14,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 03:24:14,500 INFO L396 AbstractCegarLoop]: === Iteration 6 === 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)] === [2024-11-14 03:24:14,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:24:14,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1993004847, now seen corresponding path program 1 times [2024-11-14 03:24:14,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:24:14,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2997399] [2024-11-14 03:24:14,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:24:14,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:24:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:24:27,252 INFO L134 CoverageAnalysis]: Checked inductivity of 886 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 886 trivial. 0 not checked. [2024-11-14 03:24:27,252 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:24:27,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2997399] [2024-11-14 03:24:27,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2997399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:24:27,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:24:27,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:24:27,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635442729] [2024-11-14 03:24:27,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:24:27,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:24:27,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:24:27,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:24:27,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:24:27,256 INFO L87 Difference]: Start difference. First operand 22244 states and 31146 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-14 03:24:29,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:24:31,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:24:33,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:24:47,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:24:51,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:24:51,173 INFO L93 Difference]: Finished difference Result 22500 states and 31400 transitions. [2024-11-14 03:24:51,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:24:51,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 215 [2024-11-14 03:24:51,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:24:51,349 INFO L225 Difference]: With dead ends: 22500 [2024-11-14 03:24:51,350 INFO L226 Difference]: Without dead ends: 22498 [2024-11-14 03:24:51,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:24:51,373 INFO L432 NwaCegarLoop]: 2150 mSDtfsCounter, 2486 mSDsluCounter, 4316 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2487 SdHoareTripleChecker+Valid, 6466 SdHoareTripleChecker+Invalid, 1245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:24:51,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2487 Valid, 6466 Invalid, 1245 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1241 Invalid, 3 Unknown, 0 Unchecked, 22.8s Time] [2024-11-14 03:24:51,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22498 states. [2024-11-14 03:24:52,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22498 to 22496. [2024-11-14 03:24:52,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22496 states, 12898 states have (on average 1.2624437897348426) internal successors, (16283), 13458 states have internal predecessors, (16283), 7557 states have call successors, (7557), 2053 states have call predecessors, (7557), 2038 states have return successors, (7557), 7321 states have call predecessors, (7557), 7553 states have call successors, (7557) [2024-11-14 03:24:53,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22496 states to 22496 states and 31397 transitions. [2024-11-14 03:24:53,125 INFO L78 Accepts]: Start accepts. Automaton has 22496 states and 31397 transitions. Word has length 215 [2024-11-14 03:24:53,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:24:53,126 INFO L471 AbstractCegarLoop]: Abstraction has 22496 states and 31397 transitions. [2024-11-14 03:24:53,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-14 03:24:53,126 INFO L276 IsEmpty]: Start isEmpty. Operand 22496 states and 31397 transitions. [2024-11-14 03:24:53,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-14 03:24:53,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:24:53,133 INFO L215 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:24:53,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 03:24:53,134 INFO L396 AbstractCegarLoop]: === Iteration 7 === 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)] === [2024-11-14 03:24:53,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:24:53,134 INFO L85 PathProgramCache]: Analyzing trace with hash -808548982, now seen corresponding path program 1 times [2024-11-14 03:24:53,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:24:53,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806238801] [2024-11-14 03:24:53,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:24:53,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:25:01,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:25:03,386 INFO L134 CoverageAnalysis]: Checked inductivity of 888 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 886 trivial. 0 not checked. [2024-11-14 03:25:03,386 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:25:03,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806238801] [2024-11-14 03:25:03,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806238801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:25:03,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:25:03,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:25:03,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621235798] [2024-11-14 03:25:03,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:25:03,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:25:03,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:25:03,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:25:03,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:25:03,391 INFO L87 Difference]: Start difference. First operand 22496 states and 31397 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-14 03:25:05,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:25:07,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:25:09,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:25:19,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:25:21,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:25:24,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:25:24,309 INFO L93 Difference]: Finished difference Result 22502 states and 31402 transitions. [2024-11-14 03:25:24,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:25:24,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 220 [2024-11-14 03:25:24,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:25:24,456 INFO L225 Difference]: With dead ends: 22502 [2024-11-14 03:25:24,456 INFO L226 Difference]: Without dead ends: 22500 [2024-11-14 03:25:24,478 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:25:24,479 INFO L432 NwaCegarLoop]: 2155 mSDtfsCounter, 2494 mSDsluCounter, 4292 mSDsCounter, 0 mSdLazyCounter, 1222 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2495 SdHoareTripleChecker+Valid, 6447 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1222 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:25:24,479 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2495 Valid, 6447 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1222 Invalid, 3 Unknown, 0 Unchecked, 20.0s Time] [2024-11-14 03:25:24,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22500 states. [2024-11-14 03:25:26,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22500 to 22500. [2024-11-14 03:25:26,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22500 states, 12901 states have (on average 1.262382761026277) internal successors, (16286), 13461 states have internal predecessors, (16286), 7557 states have call successors, (7557), 2054 states have call predecessors, (7557), 2039 states have return successors, (7557), 7321 states have call predecessors, (7557), 7553 states have call successors, (7557) [2024-11-14 03:25:26,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22500 states to 22500 states and 31400 transitions. [2024-11-14 03:25:26,207 INFO L78 Accepts]: Start accepts. Automaton has 22500 states and 31400 transitions. Word has length 220 [2024-11-14 03:25:26,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:25:26,207 INFO L471 AbstractCegarLoop]: Abstraction has 22500 states and 31400 transitions. [2024-11-14 03:25:26,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-14 03:25:26,208 INFO L276 IsEmpty]: Start isEmpty. Operand 22500 states and 31400 transitions. [2024-11-14 03:25:26,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-14 03:25:26,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:25:26,218 INFO L215 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:25:26,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 03:25:26,218 INFO L396 AbstractCegarLoop]: === Iteration 8 === 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)] === [2024-11-14 03:25:26,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:25:26,219 INFO L85 PathProgramCache]: Analyzing trace with hash 280600798, now seen corresponding path program 1 times [2024-11-14 03:25:26,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:25:26,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018985280] [2024-11-14 03:25:26,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:25:26,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:25:35,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:25:37,646 INFO L134 CoverageAnalysis]: Checked inductivity of 895 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 891 trivial. 0 not checked. [2024-11-14 03:25:37,646 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:25:37,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018985280] [2024-11-14 03:25:37,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018985280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:25:37,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:25:37,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:25:37,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763847675] [2024-11-14 03:25:37,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:25:37,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:25:37,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:25:37,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:25:37,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:25:37,650 INFO L87 Difference]: Start difference. First operand 22500 states and 31400 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-14 03:25:39,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:25:42,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:25:44,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:25:56,676 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 [] [2024-11-14 03:26:00,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:26:00,364 INFO L93 Difference]: Finished difference Result 22506 states and 31405 transitions. [2024-11-14 03:26:00,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:26:00,365 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 226 [2024-11-14 03:26:00,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:26:00,532 INFO L225 Difference]: With dead ends: 22506 [2024-11-14 03:26:00,533 INFO L226 Difference]: Without dead ends: 22504 [2024-11-14 03:26:00,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:26:00,550 INFO L432 NwaCegarLoop]: 2155 mSDtfsCounter, 2493 mSDsluCounter, 4292 mSDsCounter, 0 mSdLazyCounter, 1222 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2494 SdHoareTripleChecker+Valid, 6447 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1222 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:26:00,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2494 Valid, 6447 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1222 Invalid, 3 Unknown, 0 Unchecked, 21.1s Time] [2024-11-14 03:26:00,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22504 states. [2024-11-14 03:26:02,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22504 to 22504. [2024-11-14 03:26:02,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22504 states, 12904 states have (on average 1.2623217606943584) internal successors, (16289), 13464 states have internal predecessors, (16289), 7557 states have call successors, (7557), 2055 states have call predecessors, (7557), 2040 states have return successors, (7557), 7321 states have call predecessors, (7557), 7553 states have call successors, (7557) [2024-11-14 03:26:02,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22504 states to 22504 states and 31403 transitions. [2024-11-14 03:26:02,506 INFO L78 Accepts]: Start accepts. Automaton has 22504 states and 31403 transitions. Word has length 226 [2024-11-14 03:26:02,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:26:02,507 INFO L471 AbstractCegarLoop]: Abstraction has 22504 states and 31403 transitions. [2024-11-14 03:26:02,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-14 03:26:02,508 INFO L276 IsEmpty]: Start isEmpty. Operand 22504 states and 31403 transitions. [2024-11-14 03:26:02,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-11-14 03:26:02,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:26:02,516 INFO L215 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:26:02,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 03:26:02,517 INFO L396 AbstractCegarLoop]: === Iteration 9 === 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)] === [2024-11-14 03:26:02,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:26:02,517 INFO L85 PathProgramCache]: Analyzing trace with hash 918437149, now seen corresponding path program 1 times [2024-11-14 03:26:02,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:26:02,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567935913] [2024-11-14 03:26:02,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:26:02,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:26:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:26:14,334 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 899 trivial. 0 not checked. [2024-11-14 03:26:14,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:26:14,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567935913] [2024-11-14 03:26:14,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567935913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:26:14,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:26:14,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:26:14,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175651627] [2024-11-14 03:26:14,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:26:14,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:26:14,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:26:14,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:26:14,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:26:14,337 INFO L87 Difference]: Start difference. First operand 22504 states and 31403 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-14 03:26:16,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:26:18,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:26:20,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:26:30,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:26:33,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:26:33,919 INFO L93 Difference]: Finished difference Result 22510 states and 31408 transitions. [2024-11-14 03:26:33,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:26:33,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 231 [2024-11-14 03:26:33,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:26:34,065 INFO L225 Difference]: With dead ends: 22510 [2024-11-14 03:26:34,066 INFO L226 Difference]: Without dead ends: 22508 [2024-11-14 03:26:34,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:26:34,082 INFO L432 NwaCegarLoop]: 2155 mSDtfsCounter, 2492 mSDsluCounter, 4292 mSDsCounter, 0 mSdLazyCounter, 1221 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2493 SdHoareTripleChecker+Valid, 6447 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1221 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:26:34,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2493 Valid, 6447 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1221 Invalid, 4 Unknown, 0 Unchecked, 18.4s Time] [2024-11-14 03:26:34,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22508 states. [2024-11-14 03:26:35,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22508 to 22508. [2024-11-14 03:26:35,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22508 states, 12907 states have (on average 1.2622607887192996) internal successors, (16292), 13467 states have internal predecessors, (16292), 7557 states have call successors, (7557), 2056 states have call predecessors, (7557), 2041 states have return successors, (7557), 7321 states have call predecessors, (7557), 7553 states have call successors, (7557) [2024-11-14 03:26:35,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22508 states to 22508 states and 31406 transitions. [2024-11-14 03:26:35,725 INFO L78 Accepts]: Start accepts. Automaton has 22508 states and 31406 transitions. Word has length 231 [2024-11-14 03:26:35,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:26:35,726 INFO L471 AbstractCegarLoop]: Abstraction has 22508 states and 31406 transitions. [2024-11-14 03:26:35,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-14 03:26:35,727 INFO L276 IsEmpty]: Start isEmpty. Operand 22508 states and 31406 transitions. [2024-11-14 03:26:35,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-14 03:26:35,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:26:35,737 INFO L215 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:26:35,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 03:26:35,737 INFO L396 AbstractCegarLoop]: === Iteration 10 === 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)] === [2024-11-14 03:26:35,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:26:35,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1000480036, now seen corresponding path program 1 times [2024-11-14 03:26:35,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:26:35,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714937929] [2024-11-14 03:26:35,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:26:35,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:26:47,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:26:48,627 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 766 trivial. 0 not checked. [2024-11-14 03:26:48,627 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:26:48,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714937929] [2024-11-14 03:26:48,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714937929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:26:48,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:26:48,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:26:48,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220777251] [2024-11-14 03:26:48,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:26:48,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:26:48,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:26:48,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:26:48,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:26:48,632 INFO L87 Difference]: Start difference. First operand 22508 states and 31406 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2024-11-14 03:26:50,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:26:52,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:27:00,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:27:03,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:27:03,264 INFO L93 Difference]: Finished difference Result 64644 states and 90254 transitions. [2024-11-14 03:27:03,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:27:03,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 249 [2024-11-14 03:27:03,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:27:03,691 INFO L225 Difference]: With dead ends: 64644 [2024-11-14 03:27:03,692 INFO L226 Difference]: Without dead ends: 42165 [2024-11-14 03:27:03,813 INFO L431 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 [2024-11-14 03:27:03,818 INFO L432 NwaCegarLoop]: 2222 mSDtfsCounter, 2484 mSDsluCounter, 2145 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2484 SdHoareTripleChecker+Valid, 4367 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:27:03,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2484 Valid, 4367 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 823 Invalid, 2 Unknown, 0 Unchecked, 12.7s Time] [2024-11-14 03:27:03,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42165 states. [2024-11-14 03:27:07,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42165 to 42092. [2024-11-14 03:27:07,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42092 states, 24215 states have (on average 1.2636795374767706) internal successors, (30600), 25299 states have internal predecessors, (30600), 14071 states have call successors, (14071), 3832 states have call predecessors, (14071), 3803 states have return successors, (14075), 13585 states have call predecessors, (14075), 14067 states have call successors, (14075) [2024-11-14 03:27:07,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42092 states to 42092 states and 58746 transitions. [2024-11-14 03:27:07,456 INFO L78 Accepts]: Start accepts. Automaton has 42092 states and 58746 transitions. Word has length 249 [2024-11-14 03:27:07,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:27:07,457 INFO L471 AbstractCegarLoop]: Abstraction has 42092 states and 58746 transitions. [2024-11-14 03:27:07,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2024-11-14 03:27:07,458 INFO L276 IsEmpty]: Start isEmpty. Operand 42092 states and 58746 transitions. [2024-11-14 03:27:07,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2024-11-14 03:27:07,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:27:07,474 INFO L215 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 5, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:27:07,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 03:27:07,474 INFO L396 AbstractCegarLoop]: === Iteration 11 === 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)] === [2024-11-14 03:27:07,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:27:07,475 INFO L85 PathProgramCache]: Analyzing trace with hash -72849519, now seen corresponding path program 1 times [2024-11-14 03:27:07,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:27:07,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66653301] [2024-11-14 03:27:07,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:27:07,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:27:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:27:19,916 INFO L134 CoverageAnalysis]: Checked inductivity of 918 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2024-11-14 03:27:19,916 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:27:19,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66653301] [2024-11-14 03:27:19,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66653301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:27:19,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:27:19,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:27:19,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413056080] [2024-11-14 03:27:19,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:27:19,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:27:19,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:27:19,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:27:19,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:27:19,919 INFO L87 Difference]: Start difference. First operand 42092 states and 58746 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-14 03:27:22,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:27:24,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:27:26,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:27:37,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:27:41,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:27:41,642 INFO L93 Difference]: Finished difference Result 42098 states and 58751 transitions. [2024-11-14 03:27:41,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:27:41,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 235 [2024-11-14 03:27:41,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:27:41,907 INFO L225 Difference]: With dead ends: 42098 [2024-11-14 03:27:41,907 INFO L226 Difference]: Without dead ends: 42096 [2024-11-14 03:27:41,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:27:41,936 INFO L432 NwaCegarLoop]: 2155 mSDtfsCounter, 2491 mSDsluCounter, 4292 mSDsCounter, 0 mSdLazyCounter, 1222 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2492 SdHoareTripleChecker+Valid, 6447 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1222 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:27:41,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2492 Valid, 6447 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1222 Invalid, 3 Unknown, 0 Unchecked, 19.3s Time] [2024-11-14 03:27:41,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42096 states. [2024-11-14 03:27:45,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42096 to 42096. [2024-11-14 03:27:45,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42096 states, 24218 states have (on average 1.2636468742257825) internal successors, (30603), 25302 states have internal predecessors, (30603), 14071 states have call successors, (14071), 3833 states have call predecessors, (14071), 3804 states have return successors, (14075), 13585 states have call predecessors, (14075), 14067 states have call successors, (14075) [2024-11-14 03:27:46,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42096 states to 42096 states and 58749 transitions. [2024-11-14 03:27:46,072 INFO L78 Accepts]: Start accepts. Automaton has 42096 states and 58749 transitions. Word has length 235 [2024-11-14 03:27:46,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:27:46,073 INFO L471 AbstractCegarLoop]: Abstraction has 42096 states and 58749 transitions. [2024-11-14 03:27:46,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-14 03:27:46,073 INFO L276 IsEmpty]: Start isEmpty. Operand 42096 states and 58749 transitions. [2024-11-14 03:27:46,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-11-14 03:27:46,083 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:27:46,083 INFO L215 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:27:46,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-14 03:27:46,084 INFO L396 AbstractCegarLoop]: === Iteration 12 === 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)] === [2024-11-14 03:27:46,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:27:46,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1918031309, now seen corresponding path program 1 times [2024-11-14 03:27:46,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:27:46,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71565675] [2024-11-14 03:27:46,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:27:46,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:27:57,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:27:57,791 INFO L134 CoverageAnalysis]: Checked inductivity of 875 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 872 trivial. 0 not checked. [2024-11-14 03:27:57,791 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:27:57,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71565675] [2024-11-14 03:27:57,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71565675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:27:57,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:27:57,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:27:57,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433118864] [2024-11-14 03:27:57,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:27:57,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:27:57,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:27:57,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:27:57,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:27:57,794 INFO L87 Difference]: Start difference. First operand 42096 states and 58749 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2024-11-14 03:27:59,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:28:02,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:28:15,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:28:15,590 INFO L93 Difference]: Finished difference Result 102386 states and 142963 transitions. [2024-11-14 03:28:15,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:28:15,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 237 [2024-11-14 03:28:15,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:28:16,095 INFO L225 Difference]: With dead ends: 102386 [2024-11-14 03:28:16,096 INFO L226 Difference]: Without dead ends: 60474 [2024-11-14 03:28:16,332 INFO L431 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 [2024-11-14 03:28:16,333 INFO L432 NwaCegarLoop]: 2655 mSDtfsCounter, 2136 mSDsluCounter, 2109 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2136 SdHoareTripleChecker+Valid, 4764 SdHoareTripleChecker+Invalid, 1010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:28:16,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2136 Valid, 4764 Invalid, 1010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 993 Invalid, 2 Unknown, 0 Unchecked, 13.6s Time] [2024-11-14 03:28:16,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60474 states. [2024-11-14 03:28:21,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60474 to 60399. [2024-11-14 03:28:21,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60399 states, 34807 states have (on average 1.2627345074266672) internal successors, (43952), 36365 states have internal predecessors, (43952), 20077 states have call successors, (20077), 5561 states have call predecessors, (20077), 5512 states have return successors, (20085), 19354 states have call predecessors, (20085), 20073 states have call successors, (20085) [2024-11-14 03:28:22,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60399 states to 60399 states and 84114 transitions. [2024-11-14 03:28:22,157 INFO L78 Accepts]: Start accepts. Automaton has 60399 states and 84114 transitions. Word has length 237 [2024-11-14 03:28:22,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:28:22,158 INFO L471 AbstractCegarLoop]: Abstraction has 60399 states and 84114 transitions. [2024-11-14 03:28:22,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2024-11-14 03:28:22,158 INFO L276 IsEmpty]: Start isEmpty. Operand 60399 states and 84114 transitions. [2024-11-14 03:28:22,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2024-11-14 03:28:22,161 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:28:22,162 INFO L215 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 6, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:28:22,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-14 03:28:22,162 INFO L396 AbstractCegarLoop]: === Iteration 13 === 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)] === [2024-11-14 03:28:22,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:28:22,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1447819645, now seen corresponding path program 1 times [2024-11-14 03:28:22,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:28:22,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058740111] [2024-11-14 03:28:22,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:28:22,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:28:31,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:28:32,879 INFO L134 CoverageAnalysis]: Checked inductivity of 937 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 927 trivial. 0 not checked. [2024-11-14 03:28:32,879 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:28:32,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058740111] [2024-11-14 03:28:32,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058740111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:28:32,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:28:32,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:28:32,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334204328] [2024-11-14 03:28:32,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:28:32,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:28:32,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:28:32,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:28:32,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:28:32,884 INFO L87 Difference]: Start difference. First operand 60399 states and 84114 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-14 03:28:35,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:28:37,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:28:39,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:28:50,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:28:53,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:28:58,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:28:58,979 INFO L93 Difference]: Finished difference Result 60405 states and 84119 transitions. [2024-11-14 03:28:58,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:28:58,980 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 241 [2024-11-14 03:28:58,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:28:59,308 INFO L225 Difference]: With dead ends: 60405 [2024-11-14 03:28:59,308 INFO L226 Difference]: Without dead ends: 60403 [2024-11-14 03:28:59,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:28:59,339 INFO L432 NwaCegarLoop]: 2155 mSDtfsCounter, 2490 mSDsluCounter, 4292 mSDsCounter, 0 mSdLazyCounter, 1221 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2491 SdHoareTripleChecker+Valid, 6447 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1221 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:28:59,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2491 Valid, 6447 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1221 Invalid, 4 Unknown, 0 Unchecked, 21.7s Time] [2024-11-14 03:28:59,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60403 states. [2024-11-14 03:29:05,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60403 to 60403. [2024-11-14 03:29:05,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60403 states, 34810 states have (on average 1.2627118644067796) internal successors, (43955), 36368 states have internal predecessors, (43955), 20077 states have call successors, (20077), 5562 states have call predecessors, (20077), 5513 states have return successors, (20085), 19354 states have call predecessors, (20085), 20073 states have call successors, (20085) [2024-11-14 03:29:06,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60403 states to 60403 states and 84117 transitions. [2024-11-14 03:29:06,064 INFO L78 Accepts]: Start accepts. Automaton has 60403 states and 84117 transitions. Word has length 241 [2024-11-14 03:29:06,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:29:06,065 INFO L471 AbstractCegarLoop]: Abstraction has 60403 states and 84117 transitions. [2024-11-14 03:29:06,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-14 03:29:06,065 INFO L276 IsEmpty]: Start isEmpty. Operand 60403 states and 84117 transitions. [2024-11-14 03:29:06,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2024-11-14 03:29:06,071 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:29:06,071 INFO L215 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 7, 6, 6, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:29:06,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-14 03:29:06,072 INFO L396 AbstractCegarLoop]: === Iteration 14 === 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)] === [2024-11-14 03:29:06,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:29:06,072 INFO L85 PathProgramCache]: Analyzing trace with hash -695421154, now seen corresponding path program 1 times [2024-11-14 03:29:06,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:29:06,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62967267] [2024-11-14 03:29:06,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:06,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:29:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:29:18,606 INFO L134 CoverageAnalysis]: Checked inductivity of 959 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 947 trivial. 0 not checked. [2024-11-14 03:29:18,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:29:18,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62967267] [2024-11-14 03:29:18,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62967267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:29:18,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:29:18,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:29:18,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898255426] [2024-11-14 03:29:18,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:29:18,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:29:18,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:29:18,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:29:18,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:29:18,610 INFO L87 Difference]: Start difference. First operand 60403 states and 84117 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-14 03:29:20,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:29:22,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:29:25,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:29:40,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:29:45,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:29:45,761 INFO L93 Difference]: Finished difference Result 70621 states and 97593 transitions. [2024-11-14 03:29:45,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:29:45,762 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 246 [2024-11-14 03:29:45,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:29:46,300 INFO L225 Difference]: With dead ends: 70621 [2024-11-14 03:29:46,301 INFO L226 Difference]: Without dead ends: 70619 [2024-11-14 03:29:46,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:29:46,327 INFO L432 NwaCegarLoop]: 2258 mSDtfsCounter, 2346 mSDsluCounter, 4959 mSDsCounter, 0 mSdLazyCounter, 1333 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2347 SdHoareTripleChecker+Valid, 7217 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1333 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:29:46,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2347 Valid, 7217 Invalid, 1337 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1333 Invalid, 3 Unknown, 0 Unchecked, 21.0s Time] [2024-11-14 03:29:46,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70619 states. [2024-11-14 03:29:52,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70619 to 70617. [2024-11-14 03:29:52,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70617 states, 40195 states have (on average 1.2547829332006468) internal successors, (50436), 42001 states have internal predecessors, (50436), 23573 states have call successors, (23573), 6895 states have call predecessors, (23573), 6846 states have return successors, (23581), 22762 states have call predecessors, (23581), 23569 states have call successors, (23581) [2024-11-14 03:29:53,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70617 states to 70617 states and 97590 transitions. [2024-11-14 03:29:53,400 INFO L78 Accepts]: Start accepts. Automaton has 70617 states and 97590 transitions. Word has length 246 [2024-11-14 03:29:53,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:29:53,401 INFO L471 AbstractCegarLoop]: Abstraction has 70617 states and 97590 transitions. [2024-11-14 03:29:53,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-14 03:29:53,401 INFO L276 IsEmpty]: Start isEmpty. Operand 70617 states and 97590 transitions. [2024-11-14 03:29:53,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-14 03:29:53,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:29:53,410 INFO L215 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 8, 7, 7, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:29:53,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-14 03:29:53,410 INFO L396 AbstractCegarLoop]: === Iteration 15 === 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)] === [2024-11-14 03:29:53,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:29:53,411 INFO L85 PathProgramCache]: Analyzing trace with hash 246834722, now seen corresponding path program 1 times [2024-11-14 03:29:53,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:29:53,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796766560] [2024-11-14 03:29:53,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:29:53,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:30:02,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:03,860 INFO L134 CoverageAnalysis]: Checked inductivity of 979 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 965 trivial. 0 not checked. [2024-11-14 03:30:03,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:30:03,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796766560] [2024-11-14 03:30:03,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796766560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:30:03,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:30:03,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:30:03,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548493103] [2024-11-14 03:30:03,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:30:03,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:30:03,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:30:03,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:30:03,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:30:03,863 INFO L87 Difference]: Start difference. First operand 70617 states and 97590 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-14 03:30:05,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:30:08,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:30:10,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:30:22,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:30:24,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:30:29,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:30:29,404 INFO L93 Difference]: Finished difference Result 70623 states and 97595 transitions. [2024-11-14 03:30:29,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:30:29,404 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 249 [2024-11-14 03:30:29,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:30:29,906 INFO L225 Difference]: With dead ends: 70623 [2024-11-14 03:30:29,906 INFO L226 Difference]: Without dead ends: 70621 [2024-11-14 03:30:29,944 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:30:29,946 INFO L432 NwaCegarLoop]: 2155 mSDtfsCounter, 2489 mSDsluCounter, 4292 mSDsCounter, 0 mSdLazyCounter, 1220 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2490 SdHoareTripleChecker+Valid, 6447 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1220 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:30:29,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2490 Valid, 6447 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1220 Invalid, 5 Unknown, 0 Unchecked, 20.8s Time] [2024-11-14 03:30:30,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70621 states. [2024-11-14 03:30:36,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70621 to 70621. [2024-11-14 03:30:36,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70621 states, 40198 states have (on average 1.2547639186029156) internal successors, (50439), 42004 states have internal predecessors, (50439), 23573 states have call successors, (23573), 6896 states have call predecessors, (23573), 6847 states have return successors, (23581), 22762 states have call predecessors, (23581), 23569 states have call successors, (23581) [2024-11-14 03:30:36,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70621 states to 70621 states and 97593 transitions. [2024-11-14 03:30:36,636 INFO L78 Accepts]: Start accepts. Automaton has 70621 states and 97593 transitions. Word has length 249 [2024-11-14 03:30:36,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:30:36,637 INFO L471 AbstractCegarLoop]: Abstraction has 70621 states and 97593 transitions. [2024-11-14 03:30:36,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-14 03:30:36,641 INFO L276 IsEmpty]: Start isEmpty. Operand 70621 states and 97593 transitions. [2024-11-14 03:30:36,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-14 03:30:36,657 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:30:36,657 INFO L215 NwaCegarLoop]: trace histogram [18, 14, 14, 14, 14, 14, 14, 9, 8, 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:30:36,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-14 03:30:36,657 INFO L396 AbstractCegarLoop]: === Iteration 16 === 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)] === [2024-11-14 03:30:36,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:30:36,657 INFO L85 PathProgramCache]: Analyzing trace with hash 898603289, now seen corresponding path program 1 times [2024-11-14 03:30:36,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:30:36,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858975675] [2024-11-14 03:30:36,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:30:36,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:30:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:30:44,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1009 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 993 trivial. 0 not checked. [2024-11-14 03:30:44,813 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:30:44,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858975675] [2024-11-14 03:30:44,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858975675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:30:44,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:30:44,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:30:44,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403026594] [2024-11-14 03:30:44,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:30:44,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:30:44,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:30:44,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:30:44,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:30:44,814 INFO L87 Difference]: Start difference. First operand 70621 states and 97593 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-14 03:30:46,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:30:49,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:30:51,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:31:03,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 03:31:07,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:31:07,726 INFO L93 Difference]: Finished difference Result 70627 states and 97598 transitions. [2024-11-14 03:31:07,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 03:31:07,726 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 254 [2024-11-14 03:31:07,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:31:08,011 INFO L225 Difference]: With dead ends: 70627 [2024-11-14 03:31:08,011 INFO L226 Difference]: Without dead ends: 70625 [2024-11-14 03:31:08,036 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 03:31:08,037 INFO L432 NwaCegarLoop]: 2155 mSDtfsCounter, 2488 mSDsluCounter, 4292 mSDsCounter, 0 mSdLazyCounter, 1222 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2489 SdHoareTripleChecker+Valid, 6447 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1222 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:31:08,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2489 Valid, 6447 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1222 Invalid, 3 Unknown, 0 Unchecked, 18.5s Time] [2024-11-14 03:31:08,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70625 states.