./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smc91c92_cs.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_7109da4c-b0fa-4cdd-b5dc-3d6918083f2a/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7109da4c-b0fa-4cdd-b5dc-3d6918083f2a/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_7109da4c-b0fa-4cdd-b5dc-3d6918083f2a/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7109da4c-b0fa-4cdd-b5dc-3d6918083f2a/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smc91c92_cs.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7109da4c-b0fa-4cdd-b5dc-3d6918083f2a/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_7109da4c-b0fa-4cdd-b5dc-3d6918083f2a/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 5e82a719a5cd0ec3a30cd42dbacb612fd330a6d3aa584d331bc796b2ce8b6a55 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:45:50,335 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:45:50,454 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7109da4c-b0fa-4cdd-b5dc-3d6918083f2a/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 05:45:50,461 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:45:50,462 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:45:50,507 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:45:50,510 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:45:50,510 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:45:50,511 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:45:50,511 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:45:50,512 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:45:50,513 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:45:50,513 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:45:50,514 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:45:50,514 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:45:50,514 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:45:50,514 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:45:50,515 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:45:50,515 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:45:50,516 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:45:50,516 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:45:50,516 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:45:50,517 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:45:50,517 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:45:50,517 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:45:50,517 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:45:50,517 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:45:50,518 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:45:50,518 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:45:50,518 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:45:50,519 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:45:50,519 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:45:50,519 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:45:50,519 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:45:50,519 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:45:50,520 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:45:50,520 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:45:50,521 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:45:50,521 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:45:50,522 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:45:50,522 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:45:50,522 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:45:50,522 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:45:50,522 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:45:50,522 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_7109da4c-b0fa-4cdd-b5dc-3d6918083f2a/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 -> 5e82a719a5cd0ec3a30cd42dbacb612fd330a6d3aa584d331bc796b2ce8b6a55 [2024-11-14 05:45:50,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:45:50,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:45:50,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:45:50,932 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:45:50,932 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:45:50,934 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7109da4c-b0fa-4cdd-b5dc-3d6918083f2a/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smc91c92_cs.cil.i Unable to find full path for "g++" [2024-11-14 05:45:53,492 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:45:54,563 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:45:54,568 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7109da4c-b0fa-4cdd-b5dc-3d6918083f2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smc91c92_cs.cil.i [2024-11-14 05:45:54,650 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7109da4c-b0fa-4cdd-b5dc-3d6918083f2a/bin/utaipan-verify-sOmjnqqW8E/data/4b4b6fddf/7c8f2c8544b84b7dbcfd1713dc9c6ab9/FLAG18c150b2a [2024-11-14 05:45:54,674 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7109da4c-b0fa-4cdd-b5dc-3d6918083f2a/bin/utaipan-verify-sOmjnqqW8E/data/4b4b6fddf/7c8f2c8544b84b7dbcfd1713dc9c6ab9 [2024-11-14 05:45:54,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:45:54,680 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:45:54,682 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:45:54,682 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:45:54,690 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:45:54,692 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:45:54" (1/1) ... [2024-11-14 05:45:54,693 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7017cb59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:45:54, skipping insertion in model container [2024-11-14 05:45:54,694 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:45:54" (1/1) ... [2024-11-14 05:45:54,878 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:45:58,871 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_7109da4c-b0fa-4cdd-b5dc-3d6918083f2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smc91c92_cs.cil.i[350019,350032] [2024-11-14 05:45:58,877 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_7109da4c-b0fa-4cdd-b5dc-3d6918083f2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smc91c92_cs.cil.i[350188,350201] [2024-11-14 05:45:58,878 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_7109da4c-b0fa-4cdd-b5dc-3d6918083f2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smc91c92_cs.cil.i[350355,350368] [2024-11-14 05:45:58,878 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_7109da4c-b0fa-4cdd-b5dc-3d6918083f2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smc91c92_cs.cil.i[350523,350536] [2024-11-14 05:45:58,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:45:59,023 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:45:59,231 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5767] [2024-11-14 05:45:59,234 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)); [5774] [2024-11-14 05:45:59,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5781] [2024-11-14 05:45:59,244 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)); [5822-5823] [2024-11-14 05:45:59,245 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"); [5828-5830] [2024-11-14 05:45:59,246 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/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" (809), "i" (12UL)); [5855-5856] [2024-11-14 05:45:59,250 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" (45UL), [paravirt_opptr] "i" (& pv_irq_ops.restore_fl.func), [paravirt_clobber] "i" (1), "D" (f): "memory", "cc"); [5861-5863] [2024-11-14 05:45:59,252 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/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" (814), "i" (12UL)); [5887-5888] [2024-11-14 05:45:59,256 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" (46UL), [paravirt_opptr] "i" (& pv_irq_ops.irq_disable.func), [paravirt_clobber] "i" (1): "memory", "cc"); [5893-5895] [2024-11-14 05:45:59,261 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %1,%0": "=q" (ret): "m" (*((unsigned char volatile *)addr)): "memory"); [6005] [2024-11-14 05:45:59,266 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %0,%1": : "q" (val), "m" (*((unsigned char volatile *)addr)): "memory"); [6012] [2024-11-14 05:45:59,267 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [6031] [2024-11-14 05:45:59,269 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [6039] [2024-11-14 05:45:59,271 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [6046] [2024-11-14 05:45:59,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inw %w1, %w0": "=a" (value): "Nd" (port)); [6054] [2024-11-14 05:45:59,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; outsw": "+S" (addr), "+c" (count): "d" (port)); [6061] [2024-11-14 05:45:59,273 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; insw": "+D" (addr), "+c" (count): "d" (port)); [6068] [2024-11-14 05:45:59,782 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_7109da4c-b0fa-4cdd-b5dc-3d6918083f2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smc91c92_cs.cil.i[350019,350032] [2024-11-14 05:45:59,783 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_7109da4c-b0fa-4cdd-b5dc-3d6918083f2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smc91c92_cs.cil.i[350188,350201] [2024-11-14 05:45:59,784 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_7109da4c-b0fa-4cdd-b5dc-3d6918083f2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smc91c92_cs.cil.i[350355,350368] [2024-11-14 05:45:59,784 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_7109da4c-b0fa-4cdd-b5dc-3d6918083f2a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smc91c92_cs.cil.i[350523,350536] [2024-11-14 05:45:59,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:46:00,289 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:46:00,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:46:00 WrapperNode [2024-11-14 05:46:00,292 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:46:00,294 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:46:00,294 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:46:00,294 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:46:00,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:46:00" (1/1) ... [2024-11-14 05:46:00,474 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:46:00" (1/1) ... [2024-11-14 05:46:00,835 INFO L138 Inliner]: procedures = 409, calls = 2657, calls flagged for inlining = 199, calls inlined = 173, statements flattened = 5875 [2024-11-14 05:46:00,836 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:46:00,837 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:46:00,837 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:46:00,838 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:46:00,851 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:46:00" (1/1) ... [2024-11-14 05:46:00,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:46:00" (1/1) ... [2024-11-14 05:46:00,941 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:46:00" (1/1) ... [2024-11-14 05:46:00,942 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:46:00" (1/1) ... [2024-11-14 05:46:01,258 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:46:00" (1/1) ... [2024-11-14 05:46:01,295 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:46:00" (1/1) ... [2024-11-14 05:46:01,355 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:46:00" (1/1) ... [2024-11-14 05:46:01,377 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:46:00" (1/1) ... [2024-11-14 05:46:01,453 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:46:01,456 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:46:01,456 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:46:01,456 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:46:01,458 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:46:00" (1/1) ... [2024-11-14 05:46:01,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:46:01,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7109da4c-b0fa-4cdd-b5dc-3d6918083f2a/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:46:01,520 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7109da4c-b0fa-4cdd-b5dc-3d6918083f2a/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:46:01,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7109da4c-b0fa-4cdd-b5dc-3d6918083f2a/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:46:01,572 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2024-11-14 05:46:01,573 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2024-11-14 05:46:01,574 INFO L130 BoogieDeclarations]: Found specification of procedure smc91c92_detach [2024-11-14 05:46:01,575 INFO L138 BoogieDeclarations]: Found implementation of procedure smc91c92_detach [2024-11-14 05:46:01,575 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2024-11-14 05:46:01,575 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2024-11-14 05:46:01,576 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-14 05:46:01,576 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-14 05:46:01,576 INFO L130 BoogieDeclarations]: Found specification of procedure mhz_3288_power [2024-11-14 05:46:01,576 INFO L138 BoogieDeclarations]: Found implementation of procedure mhz_3288_power [2024-11-14 05:46:01,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-14 05:46:01,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-14 05:46:01,578 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_request_io [2024-11-14 05:46:01,578 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_request_io [2024-11-14 05:46:01,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_70 [2024-11-14 05:46:01,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_70 [2024-11-14 05:46:01,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-14 05:46:01,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-14 05:46:01,579 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2024-11-14 05:46:01,580 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2024-11-14 05:46:01,580 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2024-11-14 05:46:01,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2024-11-14 05:46:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-11-14 05:46:01,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-11-14 05:46:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2024-11-14 05:46:01,581 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2024-11-14 05:46:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure smc91c92_resume [2024-11-14 05:46:01,581 INFO L138 BoogieDeclarations]: Found implementation of procedure smc91c92_resume [2024-11-14 05:46:01,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-14 05:46:01,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-14 05:46:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 05:46:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure smc91c92_suspend [2024-11-14 05:46:01,582 INFO L138 BoogieDeclarations]: Found implementation of procedure smc91c92_suspend [2024-11-14 05:46:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-14 05:46:01,582 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-14 05:46:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-11-14 05:46:01,582 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-11-14 05:46:01,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2024-11-14 05:46:01,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2024-11-14 05:46:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-14 05:46:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-11-14 05:46:01,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-11-14 05:46:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 05:46:01,584 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2024-11-14 05:46:01,585 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2024-11-14 05:46:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2024-11-14 05:46:01,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2024-11-14 05:46:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2024-11-14 05:46:01,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2024-11-14 05:46:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure cvt_ascii_address [2024-11-14 05:46:01,585 INFO L138 BoogieDeclarations]: Found implementation of procedure cvt_ascii_address [2024-11-14 05:46:01,585 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2024-11-14 05:46:01,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2024-11-14 05:46:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-14 05:46:01,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-14 05:46:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 05:46:01,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2024-11-14 05:46:01,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2024-11-14 05:46:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2024-11-14 05:46:01,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2024-11-14 05:46:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_smc91c92_cs_driver_exit_13_2 [2024-11-14 05:46:01,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_smc91c92_cs_driver_exit_13_2 [2024-11-14 05:46:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:46:01,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-14 05:46:01,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-14 05:46:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-14 05:46:01,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-14 05:46:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 05:46:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2024-11-14 05:46:01,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2024-11-14 05:46:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure smc_tx_timeout [2024-11-14 05:46:01,590 INFO L138 BoogieDeclarations]: Found implementation of procedure smc_tx_timeout [2024-11-14 05:46:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2024-11-14 05:46:01,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2024-11-14 05:46:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure smc_reset [2024-11-14 05:46:01,590 INFO L138 BoogieDeclarations]: Found implementation of procedure smc_reset [2024-11-14 05:46:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2024-11-14 05:46:01,590 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2024-11-14 05:46:01,590 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2024-11-14 05:46:01,590 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2024-11-14 05:46:01,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:46:01,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:46:01,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-14 05:46:01,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-14 05:46:01,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-14 05:46:01,591 INFO L130 BoogieDeclarations]: Found specification of procedure smc_hardware_send_packet [2024-11-14 05:46:01,591 INFO L138 BoogieDeclarations]: Found implementation of procedure smc_hardware_send_packet [2024-11-14 05:46:01,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-14 05:46:01,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-14 05:46:01,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2024-11-14 05:46:01,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2024-11-14 05:46:01,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_smc_private [2024-11-14 05:46:01,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_smc_private [2024-11-14 05:46:01,591 INFO L130 BoogieDeclarations]: Found specification of procedure osi_load_firmware [2024-11-14 05:46:01,591 INFO L138 BoogieDeclarations]: Found implementation of procedure osi_load_firmware [2024-11-14 05:46:01,592 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_notice [2024-11-14 05:46:01,592 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_notice [2024-11-14 05:46:01,592 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-14 05:46:01,592 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-14 05:46:01,595 INFO L130 BoogieDeclarations]: Found specification of procedure smc_set_xcvr [2024-11-14 05:46:01,595 INFO L138 BoogieDeclarations]: Found implementation of procedure smc_set_xcvr [2024-11-14 05:46:01,595 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2024-11-14 05:46:01,595 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2024-11-14 05:46:01,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 05:46:01,596 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2024-11-14 05:46:01,596 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2024-11-14 05:46:01,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 05:46:01,596 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2024-11-14 05:46:01,596 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2024-11-14 05:46:01,596 INFO L130 BoogieDeclarations]: Found specification of procedure mot_config [2024-11-14 05:46:01,597 INFO L138 BoogieDeclarations]: Found implementation of procedure mot_config [2024-11-14 05:46:01,597 INFO L130 BoogieDeclarations]: Found specification of procedure dev_notice [2024-11-14 05:46:01,597 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_notice [2024-11-14 05:46:01,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-14 05:46:01,597 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-14 05:46:01,597 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-14 05:46:01,597 INFO L130 BoogieDeclarations]: Found specification of procedure check_sig [2024-11-14 05:46:01,597 INFO L138 BoogieDeclarations]: Found implementation of procedure check_sig [2024-11-14 05:46:01,597 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2024-11-14 05:46:01,597 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2024-11-14 05:46:01,597 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-14 05:46:01,597 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-14 05:46:01,597 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-14 05:46:01,598 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-14 05:46:01,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-11-14 05:46:01,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-11-14 05:46:01,598 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2024-11-14 05:46:01,598 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2024-11-14 05:46:01,598 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2024-11-14 05:46:01,598 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2024-11-14 05:46:01,598 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-14 05:46:01,598 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-14 05:46:01,598 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-11-14 05:46:01,598 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-11-14 05:46:01,598 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-14 05:46:01,598 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-14 05:46:01,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 05:46:01,598 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_loop_tuple [2024-11-14 05:46:01,599 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_loop_tuple [2024-11-14 05:46:01,599 INFO L130 BoogieDeclarations]: Found specification of procedure smc91c92_release [2024-11-14 05:46:01,599 INFO L138 BoogieDeclarations]: Found implementation of procedure smc91c92_release [2024-11-14 05:46:01,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-14 05:46:01,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-14 05:46:01,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_smc_private [2024-11-14 05:46:01,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_smc_private [2024-11-14 05:46:01,603 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_loop_config [2024-11-14 05:46:01,603 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_loop_config [2024-11-14 05:46:01,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-11-14 05:46:01,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-11-14 05:46:01,603 INFO L130 BoogieDeclarations]: Found specification of procedure smc_interrupt [2024-11-14 05:46:01,604 INFO L138 BoogieDeclarations]: Found implementation of procedure smc_interrupt [2024-11-14 05:46:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2024-11-14 05:46:01,604 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2024-11-14 05:46:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:46:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2024-11-14 05:46:01,604 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2024-11-14 05:46:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-11-14 05:46:01,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-11-14 05:46:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2024-11-14 05:46:01,604 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2024-11-14 05:46:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2024-11-14 05:46:01,604 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2024-11-14 05:46:02,964 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:46:02,970 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:46:03,724 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-14 05:46:22,842 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-11-14 05:46:24,060 INFO L? ?]: Removed 1905 outVars from TransFormulas that were not future-live. [2024-11-14 05:46:24,060 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:46:27,333 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:46:27,333 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 05:46:27,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:46:27 BoogieIcfgContainer [2024-11-14 05:46:27,334 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:46:27,340 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:46:27,340 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:46:27,346 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:46:27,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:45:54" (1/3) ... [2024-11-14 05:46:27,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d6bcf16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:46:27, skipping insertion in model container [2024-11-14 05:46:27,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:46:00" (2/3) ... [2024-11-14 05:46:27,349 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d6bcf16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:46:27, skipping insertion in model container [2024-11-14 05:46:27,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:46:27" (3/3) ... [2024-11-14 05:46:27,350 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smc91c92_cs.cil.i [2024-11-14 05:46:27,371 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:46:27,377 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smc91c92_cs.cil.i that has 75 procedures, 1372 locations, 1 initial locations, 1 loop locations, and 3 error locations. [2024-11-14 05:46:27,531 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:46:27,555 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;@2a670b06, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:46:27,558 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-14 05:46:27,575 INFO L276 IsEmpty]: Start isEmpty. Operand has 1370 states, 791 states have (on average 1.2882427307206068) internal successors, (1019), 809 states have internal predecessors, (1019), 503 states have call successors, (503), 74 states have call predecessors, (503), 73 states have return successors, (497), 495 states have call predecessors, (497), 497 states have call successors, (497) [2024-11-14 05:46:27,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-14 05:46:27,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:46:27,611 INFO L215 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:46:27,611 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 05:46:27,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:46:27,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1314990108, now seen corresponding path program 1 times [2024-11-14 05:46:27,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:46:27,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454640839] [2024-11-14 05:46:27,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:46:27,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:46:59,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:47:01,722 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2024-11-14 05:47:01,724 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:47:01,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454640839] [2024-11-14 05:47:01,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454640839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:47:01,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:47:01,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:47:01,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74334881] [2024-11-14 05:47:01,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:47:01,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:47:01,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:47:01,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:47:01,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:47:01,767 INFO L87 Difference]: Start difference. First operand has 1370 states, 791 states have (on average 1.2882427307206068) internal successors, (1019), 809 states have internal predecessors, (1019), 503 states have call successors, (503), 74 states have call predecessors, (503), 73 states have return successors, (497), 495 states have call predecessors, (497), 497 states have call successors, (497) Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-14 05:47:03,975 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 05:47:06,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:47:09,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:47:13,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:47:15,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:47:15,505 INFO L93 Difference]: Finished difference Result 3986 states and 5961 transitions. [2024-11-14 05:47:15,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:47:15,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 141 [2024-11-14 05:47:15,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:47:15,566 INFO L225 Difference]: With dead ends: 3986 [2024-11-14 05:47:15,566 INFO L226 Difference]: Without dead ends: 2631 [2024-11-14 05:47:15,584 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 05:47:15,587 INFO L432 NwaCegarLoop]: 1761 mSDtfsCounter, 1893 mSDsluCounter, 1717 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1893 SdHoareTripleChecker+Valid, 3478 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:47:15,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1893 Valid, 3478 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 538 Invalid, 2 Unknown, 0 Unchecked, 13.3s Time] [2024-11-14 05:47:15,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2631 states. [2024-11-14 05:47:16,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2631 to 2627. [2024-11-14 05:47:16,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2627 states, 1532 states have (on average 1.2826370757180157) internal successors, (1965), 1567 states have internal predecessors, (1965), 950 states have call successors, (950), 143 states have call predecessors, (950), 142 states have return successors, (946), 942 states have call predecessors, (946), 946 states have call successors, (946) [2024-11-14 05:47:16,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 3861 transitions. [2024-11-14 05:47:16,103 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 3861 transitions. Word has length 141 [2024-11-14 05:47:16,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:47:16,107 INFO L471 AbstractCegarLoop]: Abstraction has 2627 states and 3861 transitions. [2024-11-14 05:47:16,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-14 05:47:16,110 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 3861 transitions. [2024-11-14 05:47:16,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-14 05:47:16,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:47:16,120 INFO L215 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:47:16,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:47:16,124 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 05:47:16,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:47:16,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1790661733, now seen corresponding path program 1 times [2024-11-14 05:47:16,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:47:16,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771094422] [2024-11-14 05:47:16,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:47:16,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:47:45,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:47:47,229 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2024-11-14 05:47:47,230 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:47:47,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771094422] [2024-11-14 05:47:47,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771094422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:47:47,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:47:47,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:47:47,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954997680] [2024-11-14 05:47:47,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:47:47,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:47:47,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:47:47,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:47:47,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:47:47,238 INFO L87 Difference]: Start difference. First operand 2627 states and 3861 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-14 05:47:49,403 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 05:47:51,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:47:55,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:48:00,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:48:02,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:48:02,176 INFO L93 Difference]: Finished difference Result 7371 states and 10791 transitions. [2024-11-14 05:48:02,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:48:02,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 149 [2024-11-14 05:48:02,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:48:02,222 INFO L225 Difference]: With dead ends: 7371 [2024-11-14 05:48:02,222 INFO L226 Difference]: Without dead ends: 4769 [2024-11-14 05:48:02,240 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 05:48:02,241 INFO L432 NwaCegarLoop]: 1740 mSDtfsCounter, 1595 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1595 SdHoareTripleChecker+Valid, 3430 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:48:02,241 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1595 Valid, 3430 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 558 Invalid, 2 Unknown, 0 Unchecked, 14.6s Time] [2024-11-14 05:48:02,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4769 states. [2024-11-14 05:48:02,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4769 to 4740. [2024-11-14 05:48:02,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4740 states, 2767 states have (on average 1.2743043006866643) internal successors, (3526), 2835 states have internal predecessors, (3526), 1699 states have call successors, (1699), 276 states have call predecessors, (1699), 271 states have return successors, (1695), 1676 states have call predecessors, (1695), 1695 states have call successors, (1695) [2024-11-14 05:48:02,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4740 states to 4740 states and 6920 transitions. [2024-11-14 05:48:02,687 INFO L78 Accepts]: Start accepts. Automaton has 4740 states and 6920 transitions. Word has length 149 [2024-11-14 05:48:02,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:48:02,689 INFO L471 AbstractCegarLoop]: Abstraction has 4740 states and 6920 transitions. [2024-11-14 05:48:02,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-14 05:48:02,690 INFO L276 IsEmpty]: Start isEmpty. Operand 4740 states and 6920 transitions. [2024-11-14 05:48:02,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-14 05:48:02,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:48:02,698 INFO L215 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:48:02,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:48:02,699 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 05:48:02,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:48:02,699 INFO L85 PathProgramCache]: Analyzing trace with hash 102426993, now seen corresponding path program 1 times [2024-11-14 05:48:02,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:48:02,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102863056] [2024-11-14 05:48:02,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:48:02,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:48:29,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:48:30,774 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2024-11-14 05:48:30,778 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:48:30,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102863056] [2024-11-14 05:48:30,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102863056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:48:30,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:48:30,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:48:30,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692547273] [2024-11-14 05:48:30,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:48:30,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:48:30,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:48:30,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:48:30,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:48:30,781 INFO L87 Difference]: Start difference. First operand 4740 states and 6920 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-14 05:48:32,987 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 05:48:35,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:48:37,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:48:40,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:48:40,158 INFO L93 Difference]: Finished difference Result 9421 states and 13742 transitions. [2024-11-14 05:48:40,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:48:40,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 161 [2024-11-14 05:48:40,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:48:40,212 INFO L225 Difference]: With dead ends: 9421 [2024-11-14 05:48:40,213 INFO L226 Difference]: Without dead ends: 4706 [2024-11-14 05:48:40,239 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 05:48:40,240 INFO L432 NwaCegarLoop]: 1727 mSDtfsCounter, 1927 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1927 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:48:40,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1927 Valid, 1778 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 265 Invalid, 2 Unknown, 0 Unchecked, 9.1s Time] [2024-11-14 05:48:40,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4706 states. [2024-11-14 05:48:40,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4706 to 4706. [2024-11-14 05:48:40,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4706 states, 2753 states have (on average 1.271703596077007) internal successors, (3501), 2821 states have internal predecessors, (3501), 1675 states have call successors, (1675), 280 states have call predecessors, (1675), 275 states have return successors, (1671), 1652 states have call predecessors, (1671), 1671 states have call successors, (1671) [2024-11-14 05:48:40,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4706 states to 4706 states and 6847 transitions. [2024-11-14 05:48:40,740 INFO L78 Accepts]: Start accepts. Automaton has 4706 states and 6847 transitions. Word has length 161 [2024-11-14 05:48:40,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:48:40,740 INFO L471 AbstractCegarLoop]: Abstraction has 4706 states and 6847 transitions. [2024-11-14 05:48:40,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-14 05:48:40,741 INFO L276 IsEmpty]: Start isEmpty. Operand 4706 states and 6847 transitions. [2024-11-14 05:48:40,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-14 05:48:40,747 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:48:40,747 INFO L215 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:48:40,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 05:48:40,748 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 05:48:40,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:48:40,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1519716497, now seen corresponding path program 1 times [2024-11-14 05:48:40,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:48:40,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908635577] [2024-11-14 05:48:40,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:48:40,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:49:07,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:49:08,952 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2024-11-14 05:49:08,953 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:49:08,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908635577] [2024-11-14 05:49:08,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908635577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:49:08,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:49:08,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:49:08,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703278479] [2024-11-14 05:49:08,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:49:08,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:49:08,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:49:08,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:49:08,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:49:08,956 INFO L87 Difference]: Start difference. First operand 4706 states and 6847 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-14 05:49:11,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:49:13,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:49:16,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:49:16,349 INFO L93 Difference]: Finished difference Result 8443 states and 12226 transitions. [2024-11-14 05:49:16,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:49:16,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 160 [2024-11-14 05:49:16,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:49:16,381 INFO L225 Difference]: With dead ends: 8443 [2024-11-14 05:49:16,382 INFO L226 Difference]: Without dead ends: 3780 [2024-11-14 05:49:16,400 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 05:49:16,401 INFO L432 NwaCegarLoop]: 1437 mSDtfsCounter, 1607 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1607 SdHoareTripleChecker+Valid, 1488 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:49:16,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1607 Valid, 1488 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 233 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2024-11-14 05:49:16,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3780 states. [2024-11-14 05:49:16,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3780 to 3780. [2024-11-14 05:49:16,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3780 states, 2233 states have (on average 1.2794446932377967) internal successors, (2857), 2283 states have internal predecessors, (2857), 1285 states have call successors, (1285), 264 states have call predecessors, (1285), 259 states have return successors, (1281), 1262 states have call predecessors, (1281), 1281 states have call successors, (1281) [2024-11-14 05:49:16,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3780 states to 3780 states and 5423 transitions. [2024-11-14 05:49:16,718 INFO L78 Accepts]: Start accepts. Automaton has 3780 states and 5423 transitions. Word has length 160 [2024-11-14 05:49:16,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:49:16,722 INFO L471 AbstractCegarLoop]: Abstraction has 3780 states and 5423 transitions. [2024-11-14 05:49:16,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-14 05:49:16,722 INFO L276 IsEmpty]: Start isEmpty. Operand 3780 states and 5423 transitions. [2024-11-14 05:49:16,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-14 05:49:16,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:49:16,727 INFO L215 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 4, 4, 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] [2024-11-14 05:49:16,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 05:49:16,728 INFO L396 AbstractCegarLoop]: === Iteration 5 === 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 05:49:16,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:49:16,728 INFO L85 PathProgramCache]: Analyzing trace with hash 177592584, now seen corresponding path program 1 times [2024-11-14 05:49:16,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:49:16,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823298251] [2024-11-14 05:49:16,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:49:16,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:49:44,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:49:47,829 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2024-11-14 05:49:47,829 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:49:47,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823298251] [2024-11-14 05:49:47,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823298251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:49:47,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:49:47,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:49:47,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139648808] [2024-11-14 05:49:47,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:49:47,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:49:47,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:49:47,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:49:47,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:49:47,833 INFO L87 Difference]: Start difference. First operand 3780 states and 5423 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-14 05:49:50,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:49:52,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:49:54,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:49:58,897 WARN L539 Checker$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 05:50:03,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:50:03,879 INFO L93 Difference]: Finished difference Result 3786 states and 5428 transitions. [2024-11-14 05:50:03,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:50:03,880 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 183 [2024-11-14 05:50:03,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:50:03,904 INFO L225 Difference]: With dead ends: 3786 [2024-11-14 05:50:03,904 INFO L226 Difference]: Without dead ends: 3784 [2024-11-14 05:50:03,907 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 05:50:03,910 INFO L432 NwaCegarLoop]: 1420 mSDtfsCounter, 1603 mSDsluCounter, 2827 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1604 SdHoareTripleChecker+Valid, 4247 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:50:03,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1604 Valid, 4247 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 695 Invalid, 4 Unknown, 0 Unchecked, 15.7s Time] [2024-11-14 05:50:03,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3784 states. [2024-11-14 05:50:04,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3784 to 3784. [2024-11-14 05:50:04,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3784 states, 2236 states have (on average 1.2790697674418605) internal successors, (2860), 2286 states have internal predecessors, (2860), 1285 states have call successors, (1285), 265 states have call predecessors, (1285), 260 states have return successors, (1281), 1262 states have call predecessors, (1281), 1281 states have call successors, (1281) [2024-11-14 05:50:04,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3784 states to 3784 states and 5426 transitions. [2024-11-14 05:50:04,244 INFO L78 Accepts]: Start accepts. Automaton has 3784 states and 5426 transitions. Word has length 183 [2024-11-14 05:50:04,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:50:04,245 INFO L471 AbstractCegarLoop]: Abstraction has 3784 states and 5426 transitions. [2024-11-14 05:50:04,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-14 05:50:04,247 INFO L276 IsEmpty]: Start isEmpty. Operand 3784 states and 5426 transitions. [2024-11-14 05:50:04,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-14 05:50:04,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:50:04,253 INFO L215 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 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] [2024-11-14 05:50:04,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 05:50:04,253 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 05:50:04,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:50:04,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1527686831, now seen corresponding path program 1 times [2024-11-14 05:50:04,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:50:04,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695739107] [2024-11-14 05:50:04,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:50:04,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:50:33,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:50:36,427 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked. [2024-11-14 05:50:36,427 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:50:36,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695739107] [2024-11-14 05:50:36,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695739107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:50:36,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:50:36,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:50:36,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804012246] [2024-11-14 05:50:36,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:50:36,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:50:36,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:50:36,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:50:36,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:50:36,430 INFO L87 Difference]: Start difference. First operand 3784 states and 5426 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-14 05:50:38,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:50:40,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:50:43,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:50:51,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:50:51,985 INFO L93 Difference]: Finished difference Result 3790 states and 5431 transitions. [2024-11-14 05:50:51,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:50:51,986 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 191 [2024-11-14 05:50:51,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:50:52,018 INFO L225 Difference]: With dead ends: 3790 [2024-11-14 05:50:52,018 INFO L226 Difference]: Without dead ends: 3788 [2024-11-14 05:50:52,022 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 05:50:52,023 INFO L432 NwaCegarLoop]: 1423 mSDtfsCounter, 1598 mSDsluCounter, 2828 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1599 SdHoareTripleChecker+Valid, 4251 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:50:52,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1599 Valid, 4251 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 697 Invalid, 3 Unknown, 0 Unchecked, 15.1s Time] [2024-11-14 05:50:52,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3788 states. [2024-11-14 05:50:52,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3788 to 3788. [2024-11-14 05:50:52,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3788 states, 2239 states have (on average 1.2786958463599822) internal successors, (2863), 2289 states have internal predecessors, (2863), 1285 states have call successors, (1285), 266 states have call predecessors, (1285), 261 states have return successors, (1281), 1262 states have call predecessors, (1281), 1281 states have call successors, (1281) [2024-11-14 05:50:52,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3788 states to 3788 states and 5429 transitions. [2024-11-14 05:50:52,385 INFO L78 Accepts]: Start accepts. Automaton has 3788 states and 5429 transitions. Word has length 191 [2024-11-14 05:50:52,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:50:52,387 INFO L471 AbstractCegarLoop]: Abstraction has 3788 states and 5429 transitions. [2024-11-14 05:50:52,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-14 05:50:52,387 INFO L276 IsEmpty]: Start isEmpty. Operand 3788 states and 5429 transitions. [2024-11-14 05:50:52,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-14 05:50:52,392 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:50:52,393 INFO L215 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 4, 4, 3, 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] [2024-11-14 05:50:52,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 05:50:52,393 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 05:50:52,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:50:52,393 INFO L85 PathProgramCache]: Analyzing trace with hash -2098770264, now seen corresponding path program 1 times [2024-11-14 05:50:52,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:50:52,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617797413] [2024-11-14 05:50:52,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:50:52,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:51:19,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:51:22,266 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 667 trivial. 0 not checked. [2024-11-14 05:51:22,266 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:51:22,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617797413] [2024-11-14 05:51:22,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617797413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:51:22,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:51:22,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:51:22,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486311929] [2024-11-14 05:51:22,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:51:22,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:51:22,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:51:22,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:51:22,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:51:22,269 INFO L87 Difference]: Start difference. First operand 3788 states and 5429 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-14 05:51:24,409 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 05:51:26,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:51:29,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:51:36,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:51:36,907 INFO L93 Difference]: Finished difference Result 3794 states and 5434 transitions. [2024-11-14 05:51:36,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:51:36,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 193 [2024-11-14 05:51:36,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:51:36,937 INFO L225 Difference]: With dead ends: 3794 [2024-11-14 05:51:36,937 INFO L226 Difference]: Without dead ends: 3792 [2024-11-14 05:51:36,940 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 05:51:36,941 INFO L432 NwaCegarLoop]: 1423 mSDtfsCounter, 1598 mSDsluCounter, 2828 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1599 SdHoareTripleChecker+Valid, 4251 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:51:36,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1599 Valid, 4251 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 697 Invalid, 3 Unknown, 0 Unchecked, 14.2s Time] [2024-11-14 05:51:36,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3792 states. [2024-11-14 05:51:37,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3792 to 3792. [2024-11-14 05:51:37,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3792 states, 2242 states have (on average 1.2783229259589652) internal successors, (2866), 2292 states have internal predecessors, (2866), 1285 states have call successors, (1285), 267 states have call predecessors, (1285), 262 states have return successors, (1281), 1262 states have call predecessors, (1281), 1281 states have call successors, (1281) [2024-11-14 05:51:37,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3792 states to 3792 states and 5432 transitions. [2024-11-14 05:51:37,316 INFO L78 Accepts]: Start accepts. Automaton has 3792 states and 5432 transitions. Word has length 193 [2024-11-14 05:51:37,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:51:37,317 INFO L471 AbstractCegarLoop]: Abstraction has 3792 states and 5432 transitions. [2024-11-14 05:51:37,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-14 05:51:37,318 INFO L276 IsEmpty]: Start isEmpty. Operand 3792 states and 5432 transitions. [2024-11-14 05:51:37,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-14 05:51:37,322 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:51:37,322 INFO L215 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 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] [2024-11-14 05:51:37,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 05:51:37,322 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 05:51:37,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:51:37,323 INFO L85 PathProgramCache]: Analyzing trace with hash -2010078047, now seen corresponding path program 1 times [2024-11-14 05:51:37,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:51:37,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224961481] [2024-11-14 05:51:37,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:51:37,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:52:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:52:06,727 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 683 trivial. 0 not checked. [2024-11-14 05:52:06,727 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:52:06,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224961481] [2024-11-14 05:52:06,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224961481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:52:06,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:52:06,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:52:06,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586068937] [2024-11-14 05:52:06,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:52:06,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:52:06,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:52:06,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:52:06,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:52:06,729 INFO L87 Difference]: Start difference. First operand 3792 states and 5432 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 05:52:08,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:52:11,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:52:13,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:52:17,457 WARN L539 Checker$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 05:52:18,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:52:23,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:52:23,920 INFO L93 Difference]: Finished difference Result 3798 states and 5437 transitions. [2024-11-14 05:52:23,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:52:23,921 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 202 [2024-11-14 05:52:23,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:52:23,965 INFO L225 Difference]: With dead ends: 3798 [2024-11-14 05:52:23,965 INFO L226 Difference]: Without dead ends: 3796 [2024-11-14 05:52:23,973 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 05:52:23,973 INFO L432 NwaCegarLoop]: 1423 mSDtfsCounter, 1596 mSDsluCounter, 2828 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1597 SdHoareTripleChecker+Valid, 4251 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:52:23,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1597 Valid, 4251 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 696 Invalid, 4 Unknown, 0 Unchecked, 16.8s Time] [2024-11-14 05:52:23,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3796 states. [2024-11-14 05:52:24,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3796 to 3796. [2024-11-14 05:52:24,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3796 states, 2245 states have (on average 1.2779510022271714) internal successors, (2869), 2295 states have internal predecessors, (2869), 1285 states have call successors, (1285), 268 states have call predecessors, (1285), 263 states have return successors, (1281), 1262 states have call predecessors, (1281), 1281 states have call successors, (1281) [2024-11-14 05:52:24,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3796 states to 3796 states and 5435 transitions. [2024-11-14 05:52:24,398 INFO L78 Accepts]: Start accepts. Automaton has 3796 states and 5435 transitions. Word has length 202 [2024-11-14 05:52:24,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:52:24,399 INFO L471 AbstractCegarLoop]: Abstraction has 3796 states and 5435 transitions. [2024-11-14 05:52:24,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 05:52:24,399 INFO L276 IsEmpty]: Start isEmpty. Operand 3796 states and 5435 transitions. [2024-11-14 05:52:24,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-14 05:52:24,406 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:52:24,406 INFO L215 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 5, 4, 4, 4, 4, 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] [2024-11-14 05:52:24,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 05:52:24,406 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 05:52:24,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:52:24,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1091300424, now seen corresponding path program 1 times [2024-11-14 05:52:24,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:52:24,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459800] [2024-11-14 05:52:24,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:52:24,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:52:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:52:54,494 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2024-11-14 05:52:54,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:52:54,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459800] [2024-11-14 05:52:54,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:52:54,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:52:54,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:52:54,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410998488] [2024-11-14 05:52:54,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:52:54,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:52:54,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:52:54,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:52:54,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:52:54,497 INFO L87 Difference]: Start difference. First operand 3796 states and 5435 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-14 05:52:56,640 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 05:52:58,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:53:01,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:53:05,323 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 05:53:11,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:53:11,097 INFO L93 Difference]: Finished difference Result 3802 states and 5440 transitions. [2024-11-14 05:53:11,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:53:11,098 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 203 [2024-11-14 05:53:11,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:53:11,123 INFO L225 Difference]: With dead ends: 3802 [2024-11-14 05:53:11,123 INFO L226 Difference]: Without dead ends: 3800 [2024-11-14 05:53:11,126 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 05:53:11,127 INFO L432 NwaCegarLoop]: 1423 mSDtfsCounter, 1596 mSDsluCounter, 2828 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1597 SdHoareTripleChecker+Valid, 4251 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:53:11,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1597 Valid, 4251 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 696 Invalid, 4 Unknown, 0 Unchecked, 16.2s Time] [2024-11-14 05:53:11,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3800 states. [2024-11-14 05:53:11,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3800 to 3800. [2024-11-14 05:53:11,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3800 states, 2248 states have (on average 1.2775800711743772) internal successors, (2872), 2298 states have internal predecessors, (2872), 1285 states have call successors, (1285), 269 states have call predecessors, (1285), 264 states have return successors, (1281), 1262 states have call predecessors, (1281), 1281 states have call successors, (1281) [2024-11-14 05:53:11,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3800 states to 3800 states and 5438 transitions. [2024-11-14 05:53:11,551 INFO L78 Accepts]: Start accepts. Automaton has 3800 states and 5438 transitions. Word has length 203 [2024-11-14 05:53:11,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:53:11,552 INFO L471 AbstractCegarLoop]: Abstraction has 3800 states and 5438 transitions. [2024-11-14 05:53:11,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-14 05:53:11,553 INFO L276 IsEmpty]: Start isEmpty. Operand 3800 states and 5438 transitions. [2024-11-14 05:53:11,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-14 05:53:11,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:53:11,560 INFO L215 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 6, 5, 5, 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] [2024-11-14 05:53:11,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 05:53:11,562 INFO L396 AbstractCegarLoop]: === Iteration 10 === 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 05:53:11,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:53:11,564 INFO L85 PathProgramCache]: Analyzing trace with hash 629743121, now seen corresponding path program 1 times [2024-11-14 05:53:11,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:53:11,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215587784] [2024-11-14 05:53:11,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:53:11,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:53:45,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:53:47,166 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 710 trivial. 0 not checked. [2024-11-14 05:53:47,166 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:53:47,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215587784] [2024-11-14 05:53:47,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215587784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:53:47,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:53:47,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:53:47,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123473154] [2024-11-14 05:53:47,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:53:47,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:53:47,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:53:47,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:53:47,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:53:47,169 INFO L87 Difference]: Start difference. First operand 3800 states and 5438 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 05:53:49,314 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 05:53:51,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:53:53,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:53:57,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:54:04,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:54:04,135 INFO L93 Difference]: Finished difference Result 3806 states and 5443 transitions. [2024-11-14 05:54:04,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:54:04,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 211 [2024-11-14 05:54:04,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:54:04,163 INFO L225 Difference]: With dead ends: 3806 [2024-11-14 05:54:04,163 INFO L226 Difference]: Without dead ends: 3804 [2024-11-14 05:54:04,167 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 05:54:04,168 INFO L432 NwaCegarLoop]: 1423 mSDtfsCounter, 1594 mSDsluCounter, 2828 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1595 SdHoareTripleChecker+Valid, 4251 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:54:04,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1595 Valid, 4251 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 697 Invalid, 3 Unknown, 0 Unchecked, 16.5s Time] [2024-11-14 05:54:04,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3804 states. [2024-11-14 05:54:04,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3804 to 3804. [2024-11-14 05:54:04,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3804 states, 2251 states have (on average 1.2772101288316304) internal successors, (2875), 2301 states have internal predecessors, (2875), 1285 states have call successors, (1285), 270 states have call predecessors, (1285), 265 states have return successors, (1281), 1262 states have call predecessors, (1281), 1281 states have call successors, (1281) [2024-11-14 05:54:04,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3804 states to 3804 states and 5441 transitions. [2024-11-14 05:54:04,752 INFO L78 Accepts]: Start accepts. Automaton has 3804 states and 5441 transitions. Word has length 211 [2024-11-14 05:54:04,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:54:04,753 INFO L471 AbstractCegarLoop]: Abstraction has 3804 states and 5441 transitions. [2024-11-14 05:54:04,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 05:54:04,753 INFO L276 IsEmpty]: Start isEmpty. Operand 3804 states and 5441 transitions. [2024-11-14 05:54:04,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-14 05:54:04,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:54:04,761 INFO L215 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 7, 6, 6, 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] [2024-11-14 05:54:04,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 05:54:04,761 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 05:54:04,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:54:04,762 INFO L85 PathProgramCache]: Analyzing trace with hash 408200834, now seen corresponding path program 1 times [2024-11-14 05:54:04,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:54:04,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501461238] [2024-11-14 05:54:04,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:54:04,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:54:36,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:54:38,307 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 730 trivial. 0 not checked. [2024-11-14 05:54:38,307 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:54:38,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501461238] [2024-11-14 05:54:38,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501461238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:54:38,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:54:38,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:54:38,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812119843] [2024-11-14 05:54:38,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:54:38,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:54:38,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:54:38,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:54:38,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:54:38,309 INFO L87 Difference]: Start difference. First operand 3804 states and 5441 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 05:54:40,441 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 05:54:42,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:54:45,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:54:49,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:54:51,288 WARN L539 Checker$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 05:54:56,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:54:56,591 INFO L93 Difference]: Finished difference Result 3930 states and 5566 transitions. [2024-11-14 05:54:56,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:54:56,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 216 [2024-11-14 05:54:56,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:54:56,617 INFO L225 Difference]: With dead ends: 3930 [2024-11-14 05:54:56,617 INFO L226 Difference]: Without dead ends: 3928 [2024-11-14 05:54:56,621 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 05:54:56,622 INFO L432 NwaCegarLoop]: 1421 mSDtfsCounter, 1369 mSDsluCounter, 3062 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 4483 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:54:56,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 4483 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 742 Invalid, 5 Unknown, 0 Unchecked, 17.8s Time] [2024-11-14 05:54:56,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3928 states. [2024-11-14 05:54:57,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3928 to 3928. [2024-11-14 05:54:57,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3928 states, 2320 states have (on average 1.271551724137931) internal successors, (2950), 2370 states have internal predecessors, (2950), 1309 states have call successors, (1309), 301 states have call predecessors, (1309), 296 states have return successors, (1305), 1286 states have call predecessors, (1305), 1305 states have call successors, (1305) [2024-11-14 05:54:57,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3928 states to 3928 states and 5564 transitions. [2024-11-14 05:54:57,099 INFO L78 Accepts]: Start accepts. Automaton has 3928 states and 5564 transitions. Word has length 216 [2024-11-14 05:54:57,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:54:57,100 INFO L471 AbstractCegarLoop]: Abstraction has 3928 states and 5564 transitions. [2024-11-14 05:54:57,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 05:54:57,100 INFO L276 IsEmpty]: Start isEmpty. Operand 3928 states and 5564 transitions. [2024-11-14 05:54:57,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-14 05:54:57,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:54:57,108 INFO L215 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 8, 7, 7, 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] [2024-11-14 05:54:57,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-14 05:54:57,109 INFO L396 AbstractCegarLoop]: === Iteration 12 === 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 05:54:57,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:54:57,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1719074463, now seen corresponding path program 1 times [2024-11-14 05:54:57,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:54:57,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566813603] [2024-11-14 05:54:57,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:54:57,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:55:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:55:31,019 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 755 trivial. 0 not checked. [2024-11-14 05:55:31,019 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:55:31,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566813603] [2024-11-14 05:55:31,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566813603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:55:31,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:55:31,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:55:31,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360319648] [2024-11-14 05:55:31,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:55:31,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:55:31,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:55:31,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:55:31,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:55:31,022 INFO L87 Difference]: Start difference. First operand 3928 states and 5564 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 05:55:33,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:55:35,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:55:37,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:55:41,863 WARN L539 Checker$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 05:55:46,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:55:46,248 INFO L93 Difference]: Finished difference Result 3934 states and 5569 transitions. [2024-11-14 05:55:46,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:55:46,249 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 222 [2024-11-14 05:55:46,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:55:46,269 INFO L225 Difference]: With dead ends: 3934 [2024-11-14 05:55:46,269 INFO L226 Difference]: Without dead ends: 3932 [2024-11-14 05:55:46,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:55:46,273 INFO L432 NwaCegarLoop]: 1423 mSDtfsCounter, 1592 mSDsluCounter, 2828 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1593 SdHoareTripleChecker+Valid, 4251 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:55:46,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1593 Valid, 4251 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 696 Invalid, 4 Unknown, 0 Unchecked, 14.8s Time] [2024-11-14 05:55:46,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3932 states. [2024-11-14 05:55:46,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3932 to 3932. [2024-11-14 05:55:46,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3932 states, 2323 states have (on average 1.271201033146793) internal successors, (2953), 2373 states have internal predecessors, (2953), 1309 states have call successors, (1309), 302 states have call predecessors, (1309), 297 states have return successors, (1305), 1286 states have call predecessors, (1305), 1305 states have call successors, (1305) [2024-11-14 05:55:46,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3932 states to 3932 states and 5567 transitions. [2024-11-14 05:55:46,684 INFO L78 Accepts]: Start accepts. Automaton has 3932 states and 5567 transitions. Word has length 222 [2024-11-14 05:55:46,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:55:46,685 INFO L471 AbstractCegarLoop]: Abstraction has 3932 states and 5567 transitions. [2024-11-14 05:55:46,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 05:55:46,685 INFO L276 IsEmpty]: Start isEmpty. Operand 3932 states and 5567 transitions. [2024-11-14 05:55:46,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-11-14 05:55:46,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:55:46,690 INFO L215 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 9, 8, 8, 4, 4, 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] [2024-11-14 05:55:46,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-14 05:55:46,691 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 05:55:46,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:55:46,691 INFO L85 PathProgramCache]: Analyzing trace with hash -301555832, now seen corresponding path program 1 times [2024-11-14 05:55:46,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:55:46,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402496224] [2024-11-14 05:55:46,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:55:46,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:56:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:56:09,307 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 775 trivial. 0 not checked. [2024-11-14 05:56:09,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:56:09,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402496224] [2024-11-14 05:56:09,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402496224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:56:09,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:56:09,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:56:09,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2548615] [2024-11-14 05:56:09,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:56:09,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:56:09,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:56:09,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:56:09,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:56:09,310 INFO L87 Difference]: Start difference. First operand 3932 states and 5567 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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 05:56:11,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:56:13,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:56:15,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:56:23,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:56:23,292 INFO L93 Difference]: Finished difference Result 3938 states and 5572 transitions. [2024-11-14 05:56:23,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:56:23,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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 223 [2024-11-14 05:56:23,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:56:23,311 INFO L225 Difference]: With dead ends: 3938 [2024-11-14 05:56:23,311 INFO L226 Difference]: Without dead ends: 3936 [2024-11-14 05:56:23,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:56:23,315 INFO L432 NwaCegarLoop]: 1423 mSDtfsCounter, 1592 mSDsluCounter, 2828 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1593 SdHoareTripleChecker+Valid, 4251 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:56:23,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1593 Valid, 4251 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 697 Invalid, 3 Unknown, 0 Unchecked, 13.6s Time] [2024-11-14 05:56:23,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3936 states. [2024-11-14 05:56:23,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3936 to 3936. [2024-11-14 05:56:23,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3936 states, 2326 states have (on average 1.2708512467755804) internal successors, (2956), 2376 states have internal predecessors, (2956), 1309 states have call successors, (1309), 303 states have call predecessors, (1309), 298 states have return successors, (1305), 1286 states have call predecessors, (1305), 1305 states have call successors, (1305) [2024-11-14 05:56:23,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3936 states to 3936 states and 5570 transitions. [2024-11-14 05:56:23,914 INFO L78 Accepts]: Start accepts. Automaton has 3936 states and 5570 transitions. Word has length 223 [2024-11-14 05:56:23,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:56:23,915 INFO L471 AbstractCegarLoop]: Abstraction has 3936 states and 5570 transitions. [2024-11-14 05:56:23,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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 05:56:23,915 INFO L276 IsEmpty]: Start isEmpty. Operand 3936 states and 5570 transitions. [2024-11-14 05:56:23,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-14 05:56:23,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:56:23,920 INFO L215 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 10, 9, 9, 4, 4, 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] [2024-11-14 05:56:23,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-14 05:56:23,921 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 05:56:23,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:56:23,922 INFO L85 PathProgramCache]: Analyzing trace with hash 42450603, now seen corresponding path program 1 times [2024-11-14 05:56:23,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:56:23,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516300331] [2024-11-14 05:56:23,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:56:23,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:56:47,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:56:48,674 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 807 trivial. 0 not checked. [2024-11-14 05:56:48,674 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:56:48,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516300331] [2024-11-14 05:56:48,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516300331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:56:48,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:56:48,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:56:48,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829162208] [2024-11-14 05:56:48,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:56:48,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:56:48,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:56:48,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:56:48,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:56:48,676 INFO L87 Difference]: Start difference. First operand 3936 states and 5570 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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 05:56:50,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:56:53,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:56:55,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:56:58,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:57:01,002 WARN L539 Checker$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 05:57:05,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:57:05,336 INFO L93 Difference]: Finished difference Result 3942 states and 5575 transitions. [2024-11-14 05:57:05,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:57:05,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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 228 [2024-11-14 05:57:05,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:57:05,362 INFO L225 Difference]: With dead ends: 3942 [2024-11-14 05:57:05,362 INFO L226 Difference]: Without dead ends: 3940 [2024-11-14 05:57:05,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:57:05,366 INFO L432 NwaCegarLoop]: 1423 mSDtfsCounter, 1591 mSDsluCounter, 2828 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1592 SdHoareTripleChecker+Valid, 4251 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:57:05,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1592 Valid, 4251 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 696 Invalid, 4 Unknown, 0 Unchecked, 16.2s Time] [2024-11-14 05:57:05,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3940 states. [2024-11-14 05:57:05,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3940 to 3940. [2024-11-14 05:57:05,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3940 states, 2329 states have (on average 1.2705023615285531) internal successors, (2959), 2379 states have internal predecessors, (2959), 1309 states have call successors, (1309), 304 states have call predecessors, (1309), 299 states have return successors, (1305), 1286 states have call predecessors, (1305), 1305 states have call successors, (1305) [2024-11-14 05:57:05,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3940 states to 3940 states and 5573 transitions. [2024-11-14 05:57:05,850 INFO L78 Accepts]: Start accepts. Automaton has 3940 states and 5573 transitions. Word has length 228 [2024-11-14 05:57:05,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:57:05,851 INFO L471 AbstractCegarLoop]: Abstraction has 3940 states and 5573 transitions. [2024-11-14 05:57:05,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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 05:57:05,851 INFO L276 IsEmpty]: Start isEmpty. Operand 3940 states and 5573 transitions. [2024-11-14 05:57:05,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-14 05:57:05,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:57:05,857 INFO L215 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 11, 10, 10, 4, 4, 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] [2024-11-14 05:57:05,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-14 05:57:05,857 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 05:57:05,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:57:05,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1195854552, now seen corresponding path program 1 times [2024-11-14 05:57:05,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:57:05,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638266636] [2024-11-14 05:57:05,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:57:05,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:57:27,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:57:28,931 INFO L134 CoverageAnalysis]: Checked inductivity of 863 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 843 trivial. 0 not checked. [2024-11-14 05:57:28,931 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:57:28,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638266636] [2024-11-14 05:57:28,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638266636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:57:28,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:57:28,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:57:28,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975493650] [2024-11-14 05:57:28,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:57:28,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:57:28,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:57:28,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:57:28,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:57:28,933 INFO L87 Difference]: Start difference. First operand 3940 states and 5573 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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 05:57:31,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:57:33,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:57:35,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:57:38,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:57:43,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:57:43,744 INFO L93 Difference]: Finished difference Result 3946 states and 5578 transitions. [2024-11-14 05:57:43,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:57:43,744 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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 233 [2024-11-14 05:57:43,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:57:43,769 INFO L225 Difference]: With dead ends: 3946 [2024-11-14 05:57:43,769 INFO L226 Difference]: Without dead ends: 3942 [2024-11-14 05:57:43,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:57:43,773 INFO L432 NwaCegarLoop]: 1423 mSDtfsCounter, 1590 mSDsluCounter, 2828 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1591 SdHoareTripleChecker+Valid, 4251 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:57:43,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1591 Valid, 4251 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 697 Invalid, 3 Unknown, 0 Unchecked, 14.3s Time] [2024-11-14 05:57:43,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3942 states. [2024-11-14 05:57:44,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3942 to 3942. [2024-11-14 05:57:44,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3942 states, 2331 states have (on average 1.2698412698412698) internal successors, (2960), 2380 states have internal predecessors, (2960), 1309 states have call successors, (1309), 305 states have call predecessors, (1309), 299 states have return successors, (1305), 1286 states have call predecessors, (1305), 1305 states have call successors, (1305) [2024-11-14 05:57:44,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3942 states to 3942 states and 5574 transitions. [2024-11-14 05:57:44,306 INFO L78 Accepts]: Start accepts. Automaton has 3942 states and 5574 transitions. Word has length 233 [2024-11-14 05:57:44,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:57:44,307 INFO L471 AbstractCegarLoop]: Abstraction has 3942 states and 5574 transitions. [2024-11-14 05:57:44,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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 05:57:44,308 INFO L276 IsEmpty]: Start isEmpty. Operand 3942 states and 5574 transitions. [2024-11-14 05:57:44,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-11-14 05:57:44,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:57:44,314 INFO L215 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 12, 11, 11, 4, 4, 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] [2024-11-14 05:57:44,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-14 05:57:44,315 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 05:57:44,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:57:44,315 INFO L85 PathProgramCache]: Analyzing trace with hash -31695733, now seen corresponding path program 1 times [2024-11-14 05:57:44,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:57:44,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352858899] [2024-11-14 05:57:44,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:57:44,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:58:05,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:58:07,617 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 883 trivial. 0 not checked. [2024-11-14 05:58:07,617 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:58:07,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352858899] [2024-11-14 05:58:07,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352858899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:58:07,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:58:07,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:58:07,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49039583] [2024-11-14 05:58:07,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:58:07,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:58:07,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:58:07,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:58:07,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:58:07,619 INFO L87 Difference]: Start difference. First operand 3942 states and 5574 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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 05:58:09,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:58:12,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:58:14,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:58:17,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:58:19,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:58:21,294 WARN L539 Checker$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 05:58:25,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:58:25,568 INFO L93 Difference]: Finished difference Result 3942 states and 5574 transitions. [2024-11-14 05:58:25,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:58:25,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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 238 [2024-11-14 05:58:25,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:58:25,586 INFO L225 Difference]: With dead ends: 3942 [2024-11-14 05:58:25,586 INFO L226 Difference]: Without dead ends: 3861 [2024-11-14 05:58:25,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:58:25,590 INFO L432 NwaCegarLoop]: 1421 mSDtfsCounter, 1586 mSDsluCounter, 2826 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1586 SdHoareTripleChecker+Valid, 4247 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:58:25,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1586 Valid, 4247 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 689 Invalid, 5 Unknown, 0 Unchecked, 17.5s Time] [2024-11-14 05:58:25,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3861 states. [2024-11-14 05:58:26,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3861 to 3861. [2024-11-14 05:58:26,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3861 states, 2291 states have (on average 1.2719336534264514) internal successors, (2914), 2334 states have internal predecessors, (2914), 1282 states have call successors, (1282), 290 states have call predecessors, (1282), 286 states have return successors, (1282), 1266 states have call predecessors, (1282), 1282 states have call successors, (1282) [2024-11-14 05:58:26,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3861 states to 3861 states and 5478 transitions. [2024-11-14 05:58:26,133 INFO L78 Accepts]: Start accepts. Automaton has 3861 states and 5478 transitions. Word has length 238 [2024-11-14 05:58:26,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:58:26,134 INFO L471 AbstractCegarLoop]: Abstraction has 3861 states and 5478 transitions. [2024-11-14 05:58:26,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 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 05:58:26,134 INFO L276 IsEmpty]: Start isEmpty. Operand 3861 states and 5478 transitions. [2024-11-14 05:58:26,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-11-14 05:58:26,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:58:26,140 INFO L215 NwaCegarLoop]: trace histogram [14, 13, 12, 12, 12, 12, 12, 12, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:58:26,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-14 05:58:26,140 INFO L396 AbstractCegarLoop]: === Iteration 17 === 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 05:58:26,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:58:26,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1720600009, now seen corresponding path program 1 times [2024-11-14 05:58:26,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:58:26,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145223520] [2024-11-14 05:58:26,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:58:26,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:58:47,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:58:48,748 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2024-11-14 05:58:48,748 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:58:48,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145223520] [2024-11-14 05:58:48,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145223520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:58:48,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:58:48,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:58:48,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823343094] [2024-11-14 05:58:48,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:58:48,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:58:48,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:58:48,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:58:48,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:58:48,750 INFO L87 Difference]: Start difference. First operand 3861 states and 5478 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2024-11-14 05:58:50,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:58:53,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:58:56,846 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 05:59:00,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:59:00,391 INFO L93 Difference]: Finished difference Result 6573 states and 9308 transitions. [2024-11-14 05:59:00,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:59:00,392 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 248 [2024-11-14 05:59:00,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:59:00,403 INFO L225 Difference]: With dead ends: 6573 [2024-11-14 05:59:00,403 INFO L226 Difference]: Without dead ends: 2755 [2024-11-14 05:59:00,412 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 05:59:00,413 INFO L432 NwaCegarLoop]: 1762 mSDtfsCounter, 771 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 3108 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2024-11-14 05:59:00,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 3108 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 583 Invalid, 3 Unknown, 0 Unchecked, 11.3s Time] [2024-11-14 05:59:00,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2024-11-14 05:59:00,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 2749. [2024-11-14 05:59:00,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2749 states, 1660 states have (on average 1.260843373493976) internal successors, (2093), 1687 states have internal predecessors, (2093), 875 states have call successors, (875), 214 states have call predecessors, (875), 212 states have return successors, (875), 864 states have call predecessors, (875), 875 states have call successors, (875) [2024-11-14 05:59:00,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2749 states to 2749 states and 3843 transitions. [2024-11-14 05:59:00,711 INFO L78 Accepts]: Start accepts. Automaton has 2749 states and 3843 transitions. Word has length 248 [2024-11-14 05:59:00,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:59:00,711 INFO L471 AbstractCegarLoop]: Abstraction has 2749 states and 3843 transitions. [2024-11-14 05:59:00,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2024-11-14 05:59:00,712 INFO L276 IsEmpty]: Start isEmpty. Operand 2749 states and 3843 transitions. [2024-11-14 05:59:00,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-14 05:59:00,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:59:00,716 INFO L215 NwaCegarLoop]: trace histogram [16, 14, 12, 12, 12, 12, 12, 12, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:59:00,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-14 05:59:00,716 INFO L396 AbstractCegarLoop]: === Iteration 18 === 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 05:59:00,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:59:00,717 INFO L85 PathProgramCache]: Analyzing trace with hash 447497583, now seen corresponding path program 1 times [2024-11-14 05:59:00,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:59:00,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790752497] [2024-11-14 05:59:00,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:59:00,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:59:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:59:24,364 INFO L134 CoverageAnalysis]: Checked inductivity of 863 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 860 trivial. 0 not checked. [2024-11-14 05:59:24,364 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:59:24,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790752497] [2024-11-14 05:59:24,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790752497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:59:24,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:59:24,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:59:24,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50584374] [2024-11-14 05:59:24,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:59:24,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:59:24,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:59:24,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:59:24,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:59:24,367 INFO L87 Difference]: Start difference. First operand 2749 states and 3843 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2024-11-14 05:59:26,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:59:28,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:59:33,040 WARN L539 Checker$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 05:59:36,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:59:36,880 INFO L93 Difference]: Finished difference Result 6112 states and 8559 transitions. [2024-11-14 05:59:36,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:59:36,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 295 [2024-11-14 05:59:36,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:59:36,894 INFO L225 Difference]: With dead ends: 6112 [2024-11-14 05:59:36,894 INFO L226 Difference]: Without dead ends: 3465 [2024-11-14 05:59:36,901 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 05:59:36,901 INFO L432 NwaCegarLoop]: 1998 mSDtfsCounter, 779 mSDsluCounter, 1341 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 779 SdHoareTripleChecker+Valid, 3339 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:59:36,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [779 Valid, 3339 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 617 Invalid, 3 Unknown, 0 Unchecked, 12.1s Time] [2024-11-14 05:59:36,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3465 states. [2024-11-14 05:59:37,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3465 to 3459. [2024-11-14 05:59:37,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3459 states, 2092 states have (on average 1.2581261950286806) internal successors, (2632), 2124 states have internal predecessors, (2632), 1090 states have call successors, (1090), 277 states have call predecessors, (1090), 275 states have return successors, (1090), 1076 states have call predecessors, (1090), 1090 states have call successors, (1090) [2024-11-14 05:59:37,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3459 states to 3459 states and 4812 transitions. [2024-11-14 05:59:37,241 INFO L78 Accepts]: Start accepts. Automaton has 3459 states and 4812 transitions. Word has length 295 [2024-11-14 05:59:37,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:59:37,242 INFO L471 AbstractCegarLoop]: Abstraction has 3459 states and 4812 transitions. [2024-11-14 05:59:37,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2024-11-14 05:59:37,242 INFO L276 IsEmpty]: Start isEmpty. Operand 3459 states and 4812 transitions. [2024-11-14 05:59:37,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2024-11-14 05:59:37,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:59:37,245 INFO L215 NwaCegarLoop]: trace histogram [18, 14, 12, 12, 12, 12, 12, 12, 7, 7, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:59:37,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-14 05:59:37,245 INFO L396 AbstractCegarLoop]: === Iteration 19 === 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 05:59:37,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:59:37,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1879657615, now seen corresponding path program 1 times [2024-11-14 05:59:37,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:59:37,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713486906] [2024-11-14 05:59:37,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:59:37,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms