./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-hp-hp100.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee4e8212-3e23-4aa4-9800-b4d5029c3a02/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee4e8212-3e23-4aa4-9800-b4d5029c3a02/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee4e8212-3e23-4aa4-9800-b4d5029c3a02/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee4e8212-3e23-4aa4-9800-b4d5029c3a02/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee4e8212-3e23-4aa4-9800-b4d5029c3a02/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee4e8212-3e23-4aa4-9800-b4d5029c3a02/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6b2cae6d498f7aa4576ffcfd28b3f955c7840001d7c2abb7c90b6970c97881d1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:15:02,457 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:15:02,525 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee4e8212-3e23-4aa4-9800-b4d5029c3a02/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:15:02,532 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:15:02,532 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:15:02,559 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:15:02,560 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:15:02,561 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:15:02,562 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:15:02,562 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:15:02,563 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:15:02,564 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:15:02,564 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:15:02,565 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:15:02,565 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:15:02,566 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:15:02,567 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:15:02,567 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:15:02,568 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:15:02,568 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:15:02,569 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:15:02,570 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:15:02,570 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:15:02,571 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:15:02,571 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:15:02,572 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:15:02,572 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:15:02,573 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:15:02,573 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:15:02,574 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:15:02,574 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:15:02,575 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:15:02,575 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:15:02,575 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:15:02,576 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:15:02,576 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:15:02,576 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:15:02,577 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:15:02,577 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:15:02,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:15:02,577 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:15:02,578 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:15:02,578 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:15:02,578 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:15:02,579 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee4e8212-3e23-4aa4-9800-b4d5029c3a02/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee4e8212-3e23-4aa4-9800-b4d5029c3a02/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b2cae6d498f7aa4576ffcfd28b3f955c7840001d7c2abb7c90b6970c97881d1 [2023-11-24 23:15:02,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:15:02,863 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:15:02,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:15:02,867 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:15:02,867 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:15:02,869 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee4e8212-3e23-4aa4-9800-b4d5029c3a02/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2023-11-24 23:15:05,953 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:15:06,671 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:15:06,671 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee4e8212-3e23-4aa4-9800-b4d5029c3a02/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2023-11-24 23:15:06,713 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee4e8212-3e23-4aa4-9800-b4d5029c3a02/bin/utaipan-verify-SwPr7d2a91/data/4db056154/87d0e2f5dfc944c699aaf926d65db82e/FLAG85eae0859 [2023-11-24 23:15:06,728 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee4e8212-3e23-4aa4-9800-b4d5029c3a02/bin/utaipan-verify-SwPr7d2a91/data/4db056154/87d0e2f5dfc944c699aaf926d65db82e [2023-11-24 23:15:06,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:15:06,739 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:15:06,743 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:15:06,743 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:15:06,748 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:15:06,749 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:15:06" (1/1) ... [2023-11-24 23:15:06,750 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c25b52c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:06, skipping insertion in model container [2023-11-24 23:15:06,750 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:15:06" (1/1) ... [2023-11-24 23:15:06,906 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:15:09,603 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee4e8212-3e23-4aa4-9800-b4d5029c3a02/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314801,314814] [2023-11-24 23:15:09,607 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee4e8212-3e23-4aa4-9800-b4d5029c3a02/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314970,314983] [2023-11-24 23:15:09,608 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee4e8212-3e23-4aa4-9800-b4d5029c3a02/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315137,315150] [2023-11-24 23:15:09,608 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee4e8212-3e23-4aa4-9800-b4d5029c3a02/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315305,315318] [2023-11-24 23:15:09,628 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:15:09,665 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:15:09,788 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"); [5204] [2023-11-24 23:15:09,790 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)); [5211] [2023-11-24 23:15:09,792 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)); [5246-5247] [2023-11-24 23:15:09,792 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"); [5252-5254] [2023-11-24 23:15:09,794 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [5314] [2023-11-24 23:15:09,795 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [5317] [2023-11-24 23:15:09,795 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [5320] [2023-11-24 23:15:09,795 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [5323] [2023-11-24 23:15:09,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5392] [2023-11-24 23:15:09,799 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5438] [2023-11-24 23:15:09,799 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5446] [2023-11-24 23:15:09,799 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [5453] [2023-11-24 23:15:09,800 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inw %w1, %w0": "=a" (value): "Nd" (port)); [5461] [2023-11-24 23:15:09,800 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [5468] [2023-11-24 23:15:09,800 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [5476] [2023-11-24 23:15:09,801 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; outsl": "+S" (addr), "+c" (count): "d" (port)); [5483] [2023-11-24 23:15:09,801 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; insl": "+D" (addr), "+c" (count): "d" (port)); [5490] [2023-11-24 23:15:09,806 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [5559-5560] [2023-11-24 23:15:09,808 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [5593-5594] [2023-11-24 23:15:10,055 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee4e8212-3e23-4aa4-9800-b4d5029c3a02/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314801,314814] [2023-11-24 23:15:10,056 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee4e8212-3e23-4aa4-9800-b4d5029c3a02/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314970,314983] [2023-11-24 23:15:10,056 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee4e8212-3e23-4aa4-9800-b4d5029c3a02/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315137,315150] [2023-11-24 23:15:10,057 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee4e8212-3e23-4aa4-9800-b4d5029c3a02/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315305,315318] [2023-11-24 23:15:10,067 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:15:10,314 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:15:10,314 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:15:10,314 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:15:10,322 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:15:10,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:10 WrapperNode [2023-11-24 23:15:10,323 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:15:10,325 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:15:10,325 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:15:10,326 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:15:10,335 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:10" (1/1) ... [2023-11-24 23:15:10,455 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:10" (1/1) ... [2023-11-24 23:15:10,650 INFO L138 Inliner]: procedures = 391, calls = 1848, calls flagged for inlining = 177, calls inlined = 156, statements flattened = 5074 [2023-11-24 23:15:10,650 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:15:10,651 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:15:10,651 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:15:10,652 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:15:10,662 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:10" (1/1) ... [2023-11-24 23:15:10,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:10" (1/1) ... [2023-11-24 23:15:10,689 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:10" (1/1) ... [2023-11-24 23:15:10,689 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:10" (1/1) ... [2023-11-24 23:15:10,887 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:10" (1/1) ... [2023-11-24 23:15:10,926 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:10" (1/1) ... [2023-11-24 23:15:10,968 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:10" (1/1) ... [2023-11-24 23:15:10,992 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:10" (1/1) ... [2023-11-24 23:15:11,025 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:15:11,027 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:15:11,027 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:15:11,027 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:15:11,028 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:10" (1/1) ... [2023-11-24 23:15:11,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:15:11,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee4e8212-3e23-4aa4-9800-b4d5029c3a02/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:15:11,060 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee4e8212-3e23-4aa4-9800-b4d5029c3a02/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:15:11,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee4e8212-3e23-4aa4-9800-b4d5029c3a02/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:15:11,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-24 23:15:11,107 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-24 23:15:11,107 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-24 23:15:11,107 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-24 23:15:11,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-24 23:15:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-24 23:15:11,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-24 23:15:11,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-24 23:15:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-24 23:15:11,109 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-24 23:15:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2023-11-24 23:15:11,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2023-11-24 23:15:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2023-11-24 23:15:11,110 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2023-11-24 23:15:11,110 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_open [2023-11-24 23:15:11,110 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_open [2023-11-24 23:15:11,110 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_load_eeprom [2023-11-24 23:15:11,110 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_load_eeprom [2023-11-24 23:15:11,110 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-24 23:15:11,111 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-24 23:15:11,111 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_sense_lan [2023-11-24 23:15:11,111 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_sense_lan [2023-11-24 23:15:11,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-24 23:15:11,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-24 23:15:11,111 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-11-24 23:15:11,112 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-11-24 23:15:11,112 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-24 23:15:11,112 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-24 23:15:11,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-24 23:15:11,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-24 23:15:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-24 23:15:11,113 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-24 23:15:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:15:11,114 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-24 23:15:11,114 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-24 23:15:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2023-11-24 23:15:11,115 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2023-11-24 23:15:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-24 23:15:11,115 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-24 23:15:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_cascade_reset [2023-11-24 23:15:11,116 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_cascade_reset [2023-11-24 23:15:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-24 23:15:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-24 23:15:11,116 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-24 23:15:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-24 23:15:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-24 23:15:11,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-24 23:15:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:15:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-24 23:15:11,117 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-24 23:15:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-24 23:15:11,117 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-24 23:15:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rx_bm [2023-11-24 23:15:11,118 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rx_bm [2023-11-24 23:15:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_BM_shutdown [2023-11-24 23:15:11,118 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_BM_shutdown [2023-11-24 23:15:11,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-24 23:15:11,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-24 23:15:11,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-24 23:15:11,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-24 23:15:11,120 INFO L130 BoogieDeclarations]: Found specification of procedure wait [2023-11-24 23:15:11,120 INFO L138 BoogieDeclarations]: Found implementation of procedure wait [2023-11-24 23:15:11,120 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-24 23:15:11,120 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-24 23:15:11,120 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_hwinit [2023-11-24 23:15:11,120 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_hwinit [2023-11-24 23:15:11,120 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-24 23:15:11,121 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-24 23:15:11,121 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_whatever [2023-11-24 23:15:11,121 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_whatever [2023-11-24 23:15:11,121 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_close [2023-11-24 23:15:11,121 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_close [2023-11-24 23:15:11,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-24 23:15:11,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-24 23:15:11,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:15:11,122 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_stop_interface [2023-11-24 23:15:11,122 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_stop_interface [2023-11-24 23:15:11,122 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_check_lan [2023-11-24 23:15:11,122 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_check_lan [2023-11-24 23:15:11,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-24 23:15:11,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-24 23:15:11,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:15:11,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-24 23:15:11,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-24 23:15:11,124 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-24 23:15:11,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-24 23:15:11,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:15:11,125 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-24 23:15:11,125 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-24 23:15:11,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-24 23:15:11,126 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-24 23:15:11,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-24 23:15:11,126 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-24 23:15:11,126 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-24 23:15:11,126 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rxfill [2023-11-24 23:15:11,126 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rxfill [2023-11-24 23:15:11,127 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-24 23:15:11,127 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-24 23:15:11,127 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-24 23:15:11,127 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-24 23:15:11,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-24 23:15:11,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-24 23:15:11,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:15:11,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:15:11,128 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_update_stats [2023-11-24 23:15:11,128 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_update_stats [2023-11-24 23:15:11,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-24 23:15:11,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-24 23:15:11,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-24 23:15:11,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-24 23:15:11,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-24 23:15:11,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-24 23:15:11,131 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-24 23:15:11,131 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-24 23:15:11,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-24 23:15:11,131 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-24 23:15:11,131 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-24 23:15:11,131 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-24 23:15:11,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:15:11,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:15:11,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:15:11,136 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-24 23:15:11,136 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-24 23:15:11,137 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-24 23:15:11,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-24 23:15:11,138 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-11-24 23:15:11,139 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-11-24 23:15:11,139 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-24 23:15:11,139 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-24 23:15:11,145 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-24 23:15:11,145 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-24 23:15:11,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-24 23:15:11,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-24 23:15:11,146 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2023-11-24 23:15:11,147 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2023-11-24 23:15:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_pci_remove [2023-11-24 23:15:11,147 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_pci_remove [2023-11-24 23:15:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_build_rx_pdl [2023-11-24 23:15:11,147 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_build_rx_pdl [2023-11-24 23:15:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-24 23:15:11,148 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-24 23:15:11,148 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-24 23:15:11,148 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-24 23:15:11,148 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-11-24 23:15:11,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-11-24 23:15:11,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_hp100_private [2023-11-24 23:15:11,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_hp100_private [2023-11-24 23:15:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:15:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2023-11-24 23:15:11,149 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2023-11-24 23:15:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-24 23:15:11,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-24 23:15:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_hp100_private [2023-11-24 23:15:11,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_hp100_private [2023-11-24 23:15:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_80 [2023-11-24 23:15:11,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_80 [2023-11-24 23:15:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2023-11-24 23:15:11,150 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2023-11-24 23:15:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-11-24 23:15:11,151 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-11-24 23:15:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-24 23:15:11,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-24 23:15:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_set_multicast_list [2023-11-24 23:15:11,151 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_set_multicast_list [2023-11-24 23:15:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_start_interface [2023-11-24 23:15:11,151 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_start_interface [2023-11-24 23:15:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-24 23:15:11,152 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-24 23:15:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_clean_txring [2023-11-24 23:15:11,152 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_clean_txring [2023-11-24 23:15:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2023-11-24 23:15:11,152 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2023-11-24 23:15:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:15:11,152 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2023-11-24 23:15:11,153 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2023-11-24 23:15:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-24 23:15:11,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-24 23:15:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_login_to_vg_hub [2023-11-24 23:15:11,153 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_login_to_vg_hub [2023-11-24 23:15:11,153 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2023-11-24 23:15:11,153 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2023-11-24 23:15:12,022 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:15:12,028 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:15:12,342 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-24 23:15:15,478 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-24 23:15:15,480 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 23:15:15,834 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L8561-4: assume (if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0; [2023-11-24 23:15:15,835 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L8561-4: assume !((if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0); [2023-11-24 23:15:15,835 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L8561: assume 2096896 == ~tmp___4~7#1 % 18446744073709551616;#t~nondet791#1 := ~tmp___4~7#1; [2023-11-24 23:15:15,835 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L8561: assume !(2096896 == ~tmp___4~7#1 % 18446744073709551616);assume #t~nondet791#1 % 18446744073709551616 <= ~tmp___4~7#1 % 18446744073709551616;assume #t~nondet791#1 % 18446744073709551616 <= 2096896; [2023-11-24 23:15:15,835 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L8561-2: assume 0 == #t~nondet791#1 % 18446744073709551616;havoc #t~nondet791#1; [2023-11-24 23:15:15,835 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L8561-2: assume !(0 == #t~nondet791#1 % 18446744073709551616);havoc #t~nondet791#1; [2023-11-24 23:15:15,836 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L8563: SUMMARY for call #t~ret792#1 := schedule_timeout_interruptible(1); srcloc: null [2023-11-24 23:15:15,836 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L8563-1: assume -9223372036854775808 <= #t~ret792#1 && #t~ret792#1 <= 9223372036854775807;havoc #t~ret792#1; [2023-11-24 23:15:15,836 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !(0 == ~tmp___4~7#1 % 18446744073709551616); [2023-11-24 23:15:15,836 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume 0 == ~tmp___4~7#1 % 18446744073709551616;#t~nondet791#1 := 0; [2023-11-24 23:15:16,040 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:15:18,340 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:15:18,340 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 23:15:18,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:15:18 BoogieIcfgContainer [2023-11-24 23:15:18,343 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:15:18,346 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:15:18,346 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:15:18,353 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:15:18,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:15:06" (1/3) ... [2023-11-24 23:15:18,355 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44496a9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:15:18, skipping insertion in model container [2023-11-24 23:15:18,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:10" (2/3) ... [2023-11-24 23:15:18,356 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44496a9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:15:18, skipping insertion in model container [2023-11-24 23:15:18,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:15:18" (3/3) ... [2023-11-24 23:15:18,357 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2023-11-24 23:15:18,378 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:15:18,378 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-24 23:15:18,487 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:15:18,495 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5db9fa8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:15:18,499 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-24 23:15:18,513 INFO L276 IsEmpty]: Start isEmpty. Operand has 1554 states, 861 states have (on average 1.3008130081300813) internal successors, (1120), 901 states have internal predecessors, (1120), 611 states have call successors, (611), 81 states have call predecessors, (611), 80 states have return successors, (606), 593 states have call predecessors, (606), 606 states have call successors, (606) [2023-11-24 23:15:18,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-24 23:15:18,533 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:15:18,534 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 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] [2023-11-24 23:15:18,535 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-24 23:15:18,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:15:18,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1959244708, now seen corresponding path program 1 times [2023-11-24 23:15:18,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:15:18,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401735550] [2023-11-24 23:15:18,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:18,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:15:18,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:15:19,377 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-24 23:15:19,377 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:15:19,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401735550] [2023-11-24 23:15:19,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401735550] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:15:19,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:15:19,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:15:19,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500526523] [2023-11-24 23:15:19,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:15:19,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:15:19,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:15:19,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:15:19,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:15:19,427 INFO L87 Difference]: Start difference. First operand has 1554 states, 861 states have (on average 1.3008130081300813) internal successors, (1120), 901 states have internal predecessors, (1120), 611 states have call successors, (611), 81 states have call predecessors, (611), 80 states have return successors, (606), 593 states have call predecessors, (606), 606 states have call successors, (606) Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-24 23:15:21,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:15:21,131 INFO L93 Difference]: Finished difference Result 4577 states and 6982 transitions. [2023-11-24 23:15:21,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:15:21,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 57 [2023-11-24 23:15:21,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:15:21,196 INFO L225 Difference]: With dead ends: 4577 [2023-11-24 23:15:21,197 INFO L226 Difference]: Without dead ends: 3022 [2023-11-24 23:15:21,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:15:21,231 INFO L413 NwaCegarLoop]: 2071 mSDtfsCounter, 2256 mSDsluCounter, 2029 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2256 SdHoareTripleChecker+Valid, 4100 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-24 23:15:21,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2256 Valid, 4100 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-24 23:15:21,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3022 states. [2023-11-24 23:15:21,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3022 to 3018. [2023-11-24 23:15:21,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3018 states, 1677 states have (on average 1.2957662492546214) internal successors, (2173), 1753 states have internal predecessors, (2173), 1181 states have call successors, (1181), 158 states have call predecessors, (1181), 157 states have return successors, (1178), 1152 states have call predecessors, (1178), 1178 states have call successors, (1178) [2023-11-24 23:15:21,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3018 states to 3018 states and 4532 transitions. [2023-11-24 23:15:21,784 INFO L78 Accepts]: Start accepts. Automaton has 3018 states and 4532 transitions. Word has length 57 [2023-11-24 23:15:21,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:15:21,787 INFO L495 AbstractCegarLoop]: Abstraction has 3018 states and 4532 transitions. [2023-11-24 23:15:21,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-24 23:15:21,788 INFO L276 IsEmpty]: Start isEmpty. Operand 3018 states and 4532 transitions. [2023-11-24 23:15:21,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-24 23:15:21,803 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:15:21,803 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 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] [2023-11-24 23:15:21,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:15:21,803 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-24 23:15:21,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:15:21,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1726686362, now seen corresponding path program 1 times [2023-11-24 23:15:21,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:15:21,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175967462] [2023-11-24 23:15:21,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:21,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:15:21,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:15:22,131 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-24 23:15:22,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:15:22,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175967462] [2023-11-24 23:15:22,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175967462] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:15:22,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:15:22,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:15:22,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737260793] [2023-11-24 23:15:22,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:15:22,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:15:22,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:15:22,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:15:22,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:15:22,142 INFO L87 Difference]: Start difference. First operand 3018 states and 4532 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-24 23:15:24,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:15:24,288 INFO L93 Difference]: Finished difference Result 8688 states and 13074 transitions. [2023-11-24 23:15:24,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:15:24,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 60 [2023-11-24 23:15:24,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:15:24,351 INFO L225 Difference]: With dead ends: 8688 [2023-11-24 23:15:24,351 INFO L226 Difference]: Without dead ends: 5679 [2023-11-24 23:15:24,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:15:24,378 INFO L413 NwaCegarLoop]: 2467 mSDtfsCounter, 2069 mSDsluCounter, 2000 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2069 SdHoareTripleChecker+Valid, 4467 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-24 23:15:24,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2069 Valid, 4467 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-24 23:15:24,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5679 states. [2023-11-24 23:15:24,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5679 to 5650. [2023-11-24 23:15:24,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5650 states, 3126 states have (on average 1.2939859245041587) internal successors, (4045), 3270 states have internal predecessors, (4045), 2228 states have call successors, (2228), 298 states have call predecessors, (2228), 293 states have return successors, (2239), 2161 states have call predecessors, (2239), 2225 states have call successors, (2239) [2023-11-24 23:15:25,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5650 states to 5650 states and 8512 transitions. [2023-11-24 23:15:25,042 INFO L78 Accepts]: Start accepts. Automaton has 5650 states and 8512 transitions. Word has length 60 [2023-11-24 23:15:25,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:15:25,042 INFO L495 AbstractCegarLoop]: Abstraction has 5650 states and 8512 transitions. [2023-11-24 23:15:25,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-24 23:15:25,043 INFO L276 IsEmpty]: Start isEmpty. Operand 5650 states and 8512 transitions. [2023-11-24 23:15:25,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-24 23:15:25,047 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:15:25,047 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 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] [2023-11-24 23:15:25,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:15:25,048 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-24 23:15:25,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:15:25,058 INFO L85 PathProgramCache]: Analyzing trace with hash -849535175, now seen corresponding path program 1 times [2023-11-24 23:15:25,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:15:25,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899917235] [2023-11-24 23:15:25,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:25,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:15:25,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:15:25,287 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-24 23:15:25,287 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:15:25,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899917235] [2023-11-24 23:15:25,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899917235] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:15:25,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:15:25,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:15:25,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802294986] [2023-11-24 23:15:25,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:15:25,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:15:25,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:15:25,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:15:25,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:15:25,294 INFO L87 Difference]: Start difference. First operand 5650 states and 8512 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-24 23:15:27,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:15:27,547 INFO L93 Difference]: Finished difference Result 16400 states and 24676 transitions. [2023-11-24 23:15:27,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:15:27,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 64 [2023-11-24 23:15:27,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:15:27,655 INFO L225 Difference]: With dead ends: 16400 [2023-11-24 23:15:27,655 INFO L226 Difference]: Without dead ends: 10759 [2023-11-24 23:15:27,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:15:27,705 INFO L413 NwaCegarLoop]: 2048 mSDtfsCounter, 2095 mSDsluCounter, 1992 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2095 SdHoareTripleChecker+Valid, 4040 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-24 23:15:27,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2095 Valid, 4040 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-24 23:15:27,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10759 states. [2023-11-24 23:15:28,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10759 to 10728. [2023-11-24 23:15:28,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10728 states, 5934 states have (on average 1.288675429726997) internal successors, (7647), 6206 states have internal predecessors, (7647), 4222 states have call successors, (4222), 580 states have call predecessors, (4222), 569 states have return successors, (4249), 4089 states have call predecessors, (4249), 4219 states have call successors, (4249) [2023-11-24 23:15:28,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10728 states to 10728 states and 16118 transitions. [2023-11-24 23:15:28,864 INFO L78 Accepts]: Start accepts. Automaton has 10728 states and 16118 transitions. Word has length 64 [2023-11-24 23:15:28,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:15:28,865 INFO L495 AbstractCegarLoop]: Abstraction has 10728 states and 16118 transitions. [2023-11-24 23:15:28,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-24 23:15:28,866 INFO L276 IsEmpty]: Start isEmpty. Operand 10728 states and 16118 transitions. [2023-11-24 23:15:28,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-24 23:15:28,868 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:15:28,868 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 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] [2023-11-24 23:15:28,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 23:15:28,869 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-24 23:15:28,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:15:28,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1541195660, now seen corresponding path program 1 times [2023-11-24 23:15:28,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:15:28,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046650856] [2023-11-24 23:15:28,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:28,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:15:28,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:15:29,109 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-24 23:15:29,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:15:29,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046650856] [2023-11-24 23:15:29,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046650856] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:15:29,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:15:29,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:15:29,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090654660] [2023-11-24 23:15:29,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:15:29,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:15:29,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:15:29,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:15:29,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:15:29,113 INFO L87 Difference]: Start difference. First operand 10728 states and 16118 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-24 23:15:31,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:15:31,002 INFO L93 Difference]: Finished difference Result 18300 states and 27388 transitions. [2023-11-24 23:15:31,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:15:31,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 67 [2023-11-24 23:15:31,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:15:31,062 INFO L225 Difference]: With dead ends: 18300 [2023-11-24 23:15:31,062 INFO L226 Difference]: Without dead ends: 7581 [2023-11-24 23:15:31,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:15:31,111 INFO L413 NwaCegarLoop]: 2862 mSDtfsCounter, 1340 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1340 SdHoareTripleChecker+Valid, 4865 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-24 23:15:31,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1340 Valid, 4865 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-24 23:15:31,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7581 states. [2023-11-24 23:15:31,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7581 to 7553. [2023-11-24 23:15:31,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7553 states, 4253 states have (on average 1.281448389372208) internal successors, (5450), 4451 states have internal predecessors, (5450), 2855 states have call successors, (2855), 448 states have call predecessors, (2855), 442 states have return successors, (2867), 2758 states have call predecessors, (2867), 2852 states have call successors, (2867) [2023-11-24 23:15:31,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7553 states to 7553 states and 11172 transitions. [2023-11-24 23:15:31,733 INFO L78 Accepts]: Start accepts. Automaton has 7553 states and 11172 transitions. Word has length 67 [2023-11-24 23:15:31,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:15:31,734 INFO L495 AbstractCegarLoop]: Abstraction has 7553 states and 11172 transitions. [2023-11-24 23:15:31,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-24 23:15:31,734 INFO L276 IsEmpty]: Start isEmpty. Operand 7553 states and 11172 transitions. [2023-11-24 23:15:31,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-24 23:15:31,736 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:15:31,736 INFO L195 NwaCegarLoop]: trace histogram [7, 4, 4, 4, 4, 4, 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] [2023-11-24 23:15:31,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 23:15:31,737 INFO L420 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)] === [2023-11-24 23:15:31,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:15:31,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1186669006, now seen corresponding path program 1 times [2023-11-24 23:15:31,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:15:31,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120614478] [2023-11-24 23:15:31,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:31,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:15:31,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:15:31,947 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2023-11-24 23:15:31,947 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:15:31,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120614478] [2023-11-24 23:15:31,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120614478] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:15:31,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:15:31,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:15:31,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196659491] [2023-11-24 23:15:31,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:15:31,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:15:31,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:15:31,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:15:31,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:15:31,951 INFO L87 Difference]: Start difference. First operand 7553 states and 11172 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-24 23:15:33,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:15:33,556 INFO L93 Difference]: Finished difference Result 15062 states and 22292 transitions. [2023-11-24 23:15:33,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:15:33,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 86 [2023-11-24 23:15:33,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:15:33,608 INFO L225 Difference]: With dead ends: 15062 [2023-11-24 23:15:33,609 INFO L226 Difference]: Without dead ends: 7553 [2023-11-24 23:15:33,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:15:33,644 INFO L413 NwaCegarLoop]: 2040 mSDtfsCounter, 7 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4070 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-24 23:15:33,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 4070 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-24 23:15:33,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7553 states. [2023-11-24 23:15:34,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7553 to 7553. [2023-11-24 23:15:34,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7553 states, 4253 states have (on average 1.2795673642134964) internal successors, (5442), 4451 states have internal predecessors, (5442), 2855 states have call successors, (2855), 448 states have call predecessors, (2855), 442 states have return successors, (2867), 2758 states have call predecessors, (2867), 2852 states have call successors, (2867) [2023-11-24 23:15:34,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7553 states to 7553 states and 11164 transitions. [2023-11-24 23:15:34,402 INFO L78 Accepts]: Start accepts. Automaton has 7553 states and 11164 transitions. Word has length 86 [2023-11-24 23:15:34,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:15:34,402 INFO L495 AbstractCegarLoop]: Abstraction has 7553 states and 11164 transitions. [2023-11-24 23:15:34,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-24 23:15:34,403 INFO L276 IsEmpty]: Start isEmpty. Operand 7553 states and 11164 transitions. [2023-11-24 23:15:34,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-24 23:15:34,405 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:15:34,405 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-24 23:15:34,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-24 23:15:34,406 INFO L420 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)] === [2023-11-24 23:15:34,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:15:34,406 INFO L85 PathProgramCache]: Analyzing trace with hash -519260715, now seen corresponding path program 1 times [2023-11-24 23:15:34,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:15:34,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974048540] [2023-11-24 23:15:34,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:34,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:15:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:15:34,859 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2023-11-24 23:15:34,859 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:15:34,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974048540] [2023-11-24 23:15:34,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974048540] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:15:34,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:15:34,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:15:34,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961222218] [2023-11-24 23:15:34,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:15:34,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:15:34,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:15:34,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:15:34,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:15:34,862 INFO L87 Difference]: Start difference. First operand 7553 states and 11164 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-24 23:15:37,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:15:37,043 INFO L93 Difference]: Finished difference Result 7559 states and 11169 transitions. [2023-11-24 23:15:37,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:15:37,044 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 97 [2023-11-24 23:15:37,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:15:37,085 INFO L225 Difference]: With dead ends: 7559 [2023-11-24 23:15:37,086 INFO L226 Difference]: Without dead ends: 7557 [2023-11-24 23:15:37,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:15:37,093 INFO L413 NwaCegarLoop]: 2037 mSDtfsCounter, 2273 mSDsluCounter, 4060 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2284 SdHoareTripleChecker+Valid, 6097 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-24 23:15:37,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2284 Valid, 6097 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 824 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-24 23:15:37,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7557 states. [2023-11-24 23:15:37,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7557 to 7557. [2023-11-24 23:15:37,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7557 states, 4256 states have (on average 1.2793703007518797) internal successors, (5445), 4454 states have internal predecessors, (5445), 2855 states have call successors, (2855), 449 states have call predecessors, (2855), 443 states have return successors, (2867), 2758 states have call predecessors, (2867), 2852 states have call successors, (2867) [2023-11-24 23:15:37,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7557 states to 7557 states and 11167 transitions. [2023-11-24 23:15:37,747 INFO L78 Accepts]: Start accepts. Automaton has 7557 states and 11167 transitions. Word has length 97 [2023-11-24 23:15:37,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:15:37,748 INFO L495 AbstractCegarLoop]: Abstraction has 7557 states and 11167 transitions. [2023-11-24 23:15:37,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-24 23:15:37,748 INFO L276 IsEmpty]: Start isEmpty. Operand 7557 states and 11167 transitions. [2023-11-24 23:15:37,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-24 23:15:37,750 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:15:37,751 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-24 23:15:37,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-24 23:15:37,751 INFO L420 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)] === [2023-11-24 23:15:37,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:15:37,752 INFO L85 PathProgramCache]: Analyzing trace with hash 812308795, now seen corresponding path program 1 times [2023-11-24 23:15:37,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:15:37,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521310687] [2023-11-24 23:15:37,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:37,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:15:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:15:38,151 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2023-11-24 23:15:38,151 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:15:38,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521310687] [2023-11-24 23:15:38,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521310687] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:15:38,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:15:38,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:15:38,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435659112] [2023-11-24 23:15:38,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:15:38,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:15:38,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:15:38,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:15:38,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:15:38,155 INFO L87 Difference]: Start difference. First operand 7557 states and 11167 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-24 23:15:40,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:15:40,623 INFO L93 Difference]: Finished difference Result 7563 states and 11172 transitions. [2023-11-24 23:15:40,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:15:40,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 102 [2023-11-24 23:15:40,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:15:40,663 INFO L225 Difference]: With dead ends: 7563 [2023-11-24 23:15:40,663 INFO L226 Difference]: Without dead ends: 7561 [2023-11-24 23:15:40,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:15:40,668 INFO L413 NwaCegarLoop]: 2040 mSDtfsCounter, 2268 mSDsluCounter, 4060 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2278 SdHoareTripleChecker+Valid, 6100 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-24 23:15:40,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2278 Valid, 6100 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 824 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-24 23:15:40,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7561 states. [2023-11-24 23:15:41,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7561 to 7561. [2023-11-24 23:15:41,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7561 states, 4259 states have (on average 1.2791735149096033) internal successors, (5448), 4457 states have internal predecessors, (5448), 2855 states have call successors, (2855), 450 states have call predecessors, (2855), 444 states have return successors, (2867), 2758 states have call predecessors, (2867), 2852 states have call successors, (2867) [2023-11-24 23:15:41,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7561 states to 7561 states and 11170 transitions. [2023-11-24 23:15:41,337 INFO L78 Accepts]: Start accepts. Automaton has 7561 states and 11170 transitions. Word has length 102 [2023-11-24 23:15:41,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:15:41,339 INFO L495 AbstractCegarLoop]: Abstraction has 7561 states and 11170 transitions. [2023-11-24 23:15:41,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-24 23:15:41,339 INFO L276 IsEmpty]: Start isEmpty. Operand 7561 states and 11170 transitions. [2023-11-24 23:15:41,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-24 23:15:41,342 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:15:41,342 INFO L195 NwaCegarLoop]: trace histogram [8, 6, 6, 4, 4, 4, 4, 4, 4, 3, 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] [2023-11-24 23:15:41,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-24 23:15:41,342 INFO L420 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)] === [2023-11-24 23:15:41,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:15:41,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1707357132, now seen corresponding path program 1 times [2023-11-24 23:15:41,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:15:41,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972996134] [2023-11-24 23:15:41,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:41,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:15:41,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:15:41,728 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-24 23:15:41,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:15:41,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972996134] [2023-11-24 23:15:41,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972996134] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:15:41,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:15:41,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:15:41,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573687570] [2023-11-24 23:15:41,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:15:41,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:15:41,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:15:41,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:15:41,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:15:41,731 INFO L87 Difference]: Start difference. First operand 7561 states and 11170 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-24 23:15:43,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:15:43,735 INFO L93 Difference]: Finished difference Result 7567 states and 11175 transitions. [2023-11-24 23:15:43,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:15:43,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 116 [2023-11-24 23:15:43,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:15:43,765 INFO L225 Difference]: With dead ends: 7567 [2023-11-24 23:15:43,766 INFO L226 Difference]: Without dead ends: 7565 [2023-11-24 23:15:43,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:15:43,772 INFO L413 NwaCegarLoop]: 2040 mSDtfsCounter, 2264 mSDsluCounter, 4060 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2273 SdHoareTripleChecker+Valid, 6100 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-24 23:15:43,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2273 Valid, 6100 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 824 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-24 23:15:43,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7565 states. [2023-11-24 23:15:44,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7565 to 7565. [2023-11-24 23:15:44,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7565 states, 4262 states have (on average 1.2789770061004224) internal successors, (5451), 4460 states have internal predecessors, (5451), 2855 states have call successors, (2855), 451 states have call predecessors, (2855), 445 states have return successors, (2867), 2758 states have call predecessors, (2867), 2852 states have call successors, (2867) [2023-11-24 23:15:44,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7565 states to 7565 states and 11173 transitions. [2023-11-24 23:15:44,470 INFO L78 Accepts]: Start accepts. Automaton has 7565 states and 11173 transitions. Word has length 116 [2023-11-24 23:15:44,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:15:44,471 INFO L495 AbstractCegarLoop]: Abstraction has 7565 states and 11173 transitions. [2023-11-24 23:15:44,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-24 23:15:44,472 INFO L276 IsEmpty]: Start isEmpty. Operand 7565 states and 11173 transitions. [2023-11-24 23:15:44,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-24 23:15:44,474 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:15:44,474 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-24 23:15:44,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-24 23:15:44,477 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-24 23:15:44,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:15:44,478 INFO L85 PathProgramCache]: Analyzing trace with hash -2032436843, now seen corresponding path program 1 times [2023-11-24 23:15:44,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:15:44,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873513807] [2023-11-24 23:15:44,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:44,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:15:44,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:15:44,763 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-11-24 23:15:44,763 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:15:44,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873513807] [2023-11-24 23:15:44,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873513807] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:15:44,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:15:44,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:15:44,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896076576] [2023-11-24 23:15:44,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:15:44,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:15:44,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:15:44,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:15:44,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:15:44,767 INFO L87 Difference]: Start difference. First operand 7565 states and 11173 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15)