./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7c57b5-d06b-4f11-843f-265d5c57748b/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7c57b5-d06b-4f11-843f-265d5c57748b/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7c57b5-d06b-4f11-843f-265d5c57748b/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7c57b5-d06b-4f11-843f-265d5c57748b/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7c57b5-d06b-4f11-843f-265d5c57748b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7c57b5-d06b-4f11-843f-265d5c57748b/bin/utaipan-verify-nQ1chXbOIh --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 fb901e431a7ee0706f0e51d89ec94e4336f8310f955de577abd9c91b26865dbf --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:20:07,719 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:20:07,791 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7c57b5-d06b-4f11-843f-265d5c57748b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 15:20:07,797 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:20:07,797 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:20:07,825 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:20:07,826 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:20:07,826 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:20:07,827 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:20:07,828 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:20:07,828 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:20:07,829 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:20:07,829 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:20:07,830 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:20:07,831 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:20:07,831 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:20:07,832 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:20:07,832 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:20:07,833 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:20:07,834 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:20:07,834 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:20:07,835 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:20:07,836 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:20:07,837 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:20:07,837 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:20:07,838 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:20:07,838 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:20:07,839 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:20:07,839 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:20:07,839 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:20:07,840 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:20:07,840 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:20:07,841 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:20:07,841 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:20:07,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:20:07,842 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:20:07,842 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:20:07,842 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:20:07,842 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:20:07,843 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:20:07,843 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:20:07,843 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:20:07,843 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:20:07,844 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:20:07,844 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_2b7c57b5-d06b-4f11-843f-265d5c57748b/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7c57b5-d06b-4f11-843f-265d5c57748b/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb901e431a7ee0706f0e51d89ec94e4336f8310f955de577abd9c91b26865dbf [2023-12-02 15:20:08,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:20:08,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:20:08,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:20:08,098 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:20:08,098 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:20:08,099 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7c57b5-d06b-4f11-843f-265d5c57748b/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i [2023-12-02 15:20:10,917 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:20:11,660 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:20:11,661 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7c57b5-d06b-4f11-843f-265d5c57748b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i [2023-12-02 15:20:11,732 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7c57b5-d06b-4f11-843f-265d5c57748b/bin/utaipan-verify-nQ1chXbOIh/data/439683e7b/ea02134d5ffc4e51bfd08f3aaa49ca4c/FLAG74558fc34 [2023-12-02 15:20:11,748 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7c57b5-d06b-4f11-843f-265d5c57748b/bin/utaipan-verify-nQ1chXbOIh/data/439683e7b/ea02134d5ffc4e51bfd08f3aaa49ca4c [2023-12-02 15:20:11,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:20:11,752 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:20:11,753 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:20:11,753 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:20:11,759 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:20:11,759 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:20:11" (1/1) ... [2023-12-02 15:20:11,761 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5990b0b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:20:11, skipping insertion in model container [2023-12-02 15:20:11,761 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:20:11" (1/1) ... [2023-12-02 15:20:11,993 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:20:18,330 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_2b7c57b5-d06b-4f11-843f-265d5c57748b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[620437,620450] [2023-12-02 15:20:18,335 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_2b7c57b5-d06b-4f11-843f-265d5c57748b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[620606,620619] [2023-12-02 15:20:18,336 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_2b7c57b5-d06b-4f11-843f-265d5c57748b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[620773,620786] [2023-12-02 15:20:18,336 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_2b7c57b5-d06b-4f11-843f-265d5c57748b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[620941,620954] [2023-12-02 15:20:18,403 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:20:18,474 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:20:18,614 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"); [6085] [2023-12-02 15:20:18,616 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)); [6092] [2023-12-02 15:20:18,616 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; btc %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [6099] [2023-12-02 15:20:18,616 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [6106] [2023-12-02 15:20:18,618 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [6169] [2023-12-02 15:20:18,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6172] [2023-12-02 15:20:18,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6175] [2023-12-02 15:20:18,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6178] [2023-12-02 15:20:18,620 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/7cdfae59d3ac602223400f61d8829e28/klever-core-work-dir/520b8de/linux-kernel-locking-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [6219-6220] [2023-12-02 15:20:18,621 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"); [6225-6227] [2023-12-02 15:20:18,622 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [6294] [2023-12-02 15:20:18,622 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [6297] [2023-12-02 15:20:18,623 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [6300] [2023-12-02 15:20:18,623 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [6303] [2023-12-02 15:20:18,628 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [6464] [2023-12-02 15:20:18,629 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [6472] [2023-12-02 15:20:18,629 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; outsb": "+S" (addr), "+c" (count): "d" (port)); [6479] [2023-12-02 15:20:18,629 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; insb": "+D" (addr), "+c" (count): "d" (port)); [6486] [2023-12-02 15:20:18,629 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [6493] [2023-12-02 15:20:18,630 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inw %w1, %w0": "=a" (value): "Nd" (port)); [6501] [2023-12-02 15:20:18,630 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; outsw": "+S" (addr), "+c" (count): "d" (port)); [6508] [2023-12-02 15:20:18,631 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; insw": "+D" (addr), "+c" (count): "d" (port)); [6515] [2023-12-02 15:20:18,792 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (tmp___1->state): : "memory", "cc"); [10305-10306] [2023-12-02 15:20:18,792 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (tmp___2->state): : "memory", "cc"); [10312-10313] [2023-12-02 15:20:18,792 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (tmp___3->state): : "memory", "cc"); [10319-10320] [2023-12-02 15:20:18,793 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (tmp___4->state): : "memory", "cc"); [10326-10327] [2023-12-02 15:20:19,123 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_2b7c57b5-d06b-4f11-843f-265d5c57748b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[620437,620450] [2023-12-02 15:20:19,124 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_2b7c57b5-d06b-4f11-843f-265d5c57748b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[620606,620619] [2023-12-02 15:20:19,124 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_2b7c57b5-d06b-4f11-843f-265d5c57748b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[620773,620786] [2023-12-02 15:20:19,125 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_2b7c57b5-d06b-4f11-843f-265d5c57748b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i[620941,620954] [2023-12-02 15:20:19,133 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:20:19,374 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:20:19,374 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:20:19,375 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:20:19,375 WARN L675 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:20:19,375 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:20:19,375 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:20:19,381 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:20:19,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:20:19 WrapperNode [2023-12-02 15:20:19,382 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:20:19,383 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:20:19,383 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:20:19,383 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:20:19,390 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:20:19" (1/1) ... [2023-12-02 15:20:19,539 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:20:19" (1/1) ... [2023-12-02 15:20:19,930 INFO L138 Inliner]: procedures = 699, calls = 7035, calls flagged for inlining = 323, calls inlined = 304, statements flattened = 14504 [2023-12-02 15:20:19,931 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:20:19,931 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:20:19,932 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:20:19,932 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:20:19,941 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:20:19" (1/1) ... [2023-12-02 15:20:19,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:20:19" (1/1) ... [2023-12-02 15:20:20,065 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:20:19" (1/1) ... [2023-12-02 15:20:20,065 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:20:19" (1/1) ... [2023-12-02 15:20:20,378 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:20:19" (1/1) ... [2023-12-02 15:20:20,421 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:20:19" (1/1) ... [2023-12-02 15:20:20,481 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:20:19" (1/1) ... [2023-12-02 15:20:20,508 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:20:19" (1/1) ... [2023-12-02 15:20:20,668 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:20:20,669 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:20:20,669 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:20:20,670 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:20:20,670 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:20:19" (1/1) ... [2023-12-02 15:20:20,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:20:20,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7c57b5-d06b-4f11-843f-265d5c57748b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:20:20,700 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7c57b5-d06b-4f11-843f-265d5c57748b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:20:20,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7c57b5-d06b-4f11-843f-265d5c57748b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:20:20,740 INFO L130 BoogieDeclarations]: Found specification of procedure PC4500_writerid [2023-12-02 15:20:20,741 INFO L138 BoogieDeclarations]: Found implementation of procedure PC4500_writerid [2023-12-02 15:20:20,741 INFO L130 BoogieDeclarations]: Found specification of procedure reset_card [2023-12-02 15:20:20,741 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_card [2023-12-02 15:20:20,741 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-12-02 15:20:20,741 INFO L130 BoogieDeclarations]: Found specification of procedure readStatusRid [2023-12-02 15:20:20,741 INFO L138 BoogieDeclarations]: Found implementation of procedure readStatusRid [2023-12-02 15:20:20,741 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-12-02 15:20:20,742 INFO L130 BoogieDeclarations]: Found specification of procedure reset_airo_card [2023-12-02 15:20:20,742 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_airo_card [2023-12-02 15:20:20,742 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2023-12-02 15:20:20,742 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2023-12-02 15:20:20,742 INFO L130 BoogieDeclarations]: Found specification of procedure crypto_cipher_crt [2023-12-02 15:20:20,742 INFO L138 BoogieDeclarations]: Found implementation of procedure crypto_cipher_crt [2023-12-02 15:20:20,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-12-02 15:20:20,743 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-12-02 15:20:20,743 INFO L130 BoogieDeclarations]: Found specification of procedure wifi_setup [2023-12-02 15:20:20,743 INFO L138 BoogieDeclarations]: Found implementation of procedure wifi_setup [2023-12-02 15:20:20,743 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-12-02 15:20:20,743 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-12-02 15:20:20,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-12-02 15:20:20,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-12-02 15:20:20,744 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_spy_update [2023-12-02 15:20:20,744 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_spy_update [2023-12-02 15:20:20,744 INFO L130 BoogieDeclarations]: Found specification of procedure age_mic_context [2023-12-02 15:20:20,744 INFO L138 BoogieDeclarations]: Found implementation of procedure age_mic_context [2023-12-02 15:20:20,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-12-02 15:20:20,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-12-02 15:20:20,745 INFO L130 BoogieDeclarations]: Found specification of procedure setup_card [2023-12-02 15:20:20,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_card [2023-12-02 15:20:20,745 INFO L130 BoogieDeclarations]: Found specification of procedure airo_networks_free [2023-12-02 15:20:20,745 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_networks_free [2023-12-02 15:20:20,745 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_should_stop [2023-12-02 15:20:20,745 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_should_stop [2023-12-02 15:20:20,746 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2023-12-02 15:20:20,746 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2023-12-02 15:20:20,746 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-12-02 15:20:20,746 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-12-02 15:20:20,746 INFO L130 BoogieDeclarations]: Found specification of procedure airo_close [2023-12-02 15:20:20,746 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_close [2023-12-02 15:20:20,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_62 [2023-12-02 15:20:20,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_62 [2023-12-02 15:20:20,747 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_error [2023-12-02 15:20:20,747 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_error [2023-12-02 15:20:20,747 INFO L130 BoogieDeclarations]: Found specification of procedure sniffing_mode [2023-12-02 15:20:20,747 INFO L138 BoogieDeclarations]: Found implementation of procedure sniffing_mode [2023-12-02 15:20:20,747 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-12-02 15:20:20,747 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-12-02 15:20:20,747 INFO L130 BoogieDeclarations]: Found specification of procedure header_len [2023-12-02 15:20:20,747 INFO L138 BoogieDeclarations]: Found implementation of procedure header_len [2023-12-02 15:20:20,748 INFO L130 BoogieDeclarations]: Found specification of procedure ssleep [2023-12-02 15:20:20,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ssleep [2023-12-02 15:20:20,748 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2023-12-02 15:20:20,748 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2023-12-02 15:20:20,748 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-12-02 15:20:20,748 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2023-12-02 15:20:20,748 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2023-12-02 15:20:20,748 INFO L130 BoogieDeclarations]: Found specification of procedure readSsidRid [2023-12-02 15:20:20,749 INFO L138 BoogieDeclarations]: Found implementation of procedure readSsidRid [2023-12-02 15:20:20,749 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-02 15:20:20,749 INFO L130 BoogieDeclarations]: Found specification of procedure emmh32_final [2023-12-02 15:20:20,749 INFO L138 BoogieDeclarations]: Found implementation of procedure emmh32_final [2023-12-02 15:20:20,749 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-12-02 15:20:20,749 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-12-02 15:20:20,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-12-02 15:20:20,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-12-02 15:20:20,749 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2023-12-02 15:20:20,750 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2023-12-02 15:20:20,750 INFO L130 BoogieDeclarations]: Found specification of procedure down_trylock [2023-12-02 15:20:20,750 INFO L138 BoogieDeclarations]: Found implementation of procedure down_trylock [2023-12-02 15:20:20,750 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-12-02 15:20:20,750 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-12-02 15:20:20,750 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-12-02 15:20:20,750 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-12-02 15:20:20,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-12-02 15:20:20,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-12-02 15:20:20,751 INFO L130 BoogieDeclarations]: Found specification of procedure enable_MAC [2023-12-02 15:20:20,751 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_MAC [2023-12-02 15:20:20,751 INFO L130 BoogieDeclarations]: Found specification of procedure OUT4500 [2023-12-02 15:20:20,751 INFO L138 BoogieDeclarations]: Found implementation of procedure OUT4500 [2023-12-02 15:20:20,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 15:20:20,751 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-12-02 15:20:20,751 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-12-02 15:20:20,751 INFO L130 BoogieDeclarations]: Found specification of procedure mpi_send_packet [2023-12-02 15:20:20,752 INFO L138 BoogieDeclarations]: Found implementation of procedure mpi_send_packet [2023-12-02 15:20:20,752 INFO L130 BoogieDeclarations]: Found specification of procedure PDE_DATA [2023-12-02 15:20:20,752 INFO L138 BoogieDeclarations]: Found implementation of procedure PDE_DATA [2023-12-02 15:20:20,752 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-12-02 15:20:20,752 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-12-02 15:20:20,752 INFO L130 BoogieDeclarations]: Found specification of procedure airo_ioctl [2023-12-02 15:20:20,752 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_ioctl [2023-12-02 15:20:20,752 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-12-02 15:20:20,752 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-12-02 15:20:20,753 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-12-02 15:20:20,753 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-12-02 15:20:20,753 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-12-02 15:20:20,753 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-12-02 15:20:20,753 INFO L130 BoogieDeclarations]: Found specification of procedure airo_end_xmit11 [2023-12-02 15:20:20,753 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_end_xmit11 [2023-12-02 15:20:20,753 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-12-02 15:20:20,753 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-12-02 15:20:20,754 INFO L130 BoogieDeclarations]: Found specification of procedure airo_change_mtu [2023-12-02 15:20:20,754 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_change_mtu [2023-12-02 15:20:20,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-12-02 15:20:20,754 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-12-02 15:20:20,754 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-12-02 15:20:20,754 INFO L130 BoogieDeclarations]: Found specification of procedure disable_interrupts [2023-12-02 15:20:20,754 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_interrupts [2023-12-02 15:20:20,754 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-12-02 15:20:20,755 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-12-02 15:20:20,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2023-12-02 15:20:20,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2023-12-02 15:20:20,755 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-12-02 15:20:20,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-12-02 15:20:20,755 INFO L130 BoogieDeclarations]: Found specification of procedure down_interruptible [2023-12-02 15:20:20,755 INFO L138 BoogieDeclarations]: Found implementation of procedure down_interruptible [2023-12-02 15:20:20,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 15:20:20,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-12-02 15:20:20,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-12-02 15:20:20,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 15:20:20,756 INFO L130 BoogieDeclarations]: Found specification of procedure airo_pci_remove [2023-12-02 15:20:20,756 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_pci_remove [2023-12-02 15:20:20,756 INFO L130 BoogieDeclarations]: Found specification of procedure aux_setup [2023-12-02 15:20:20,756 INFO L138 BoogieDeclarations]: Found implementation of procedure aux_setup [2023-12-02 15:20:20,756 INFO L130 BoogieDeclarations]: Found specification of procedure writeConfigRid [2023-12-02 15:20:20,756 INFO L138 BoogieDeclarations]: Found implementation of procedure writeConfigRid [2023-12-02 15:20:20,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-12-02 15:20:20,757 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-12-02 15:20:20,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-12-02 15:20:20,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-12-02 15:20:20,757 INFO L130 BoogieDeclarations]: Found specification of procedure readCapabilityRid [2023-12-02 15:20:20,757 INFO L138 BoogieDeclarations]: Found implementation of procedure readCapabilityRid [2023-12-02 15:20:20,757 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2023-12-02 15:20:20,757 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2023-12-02 15:20:20,757 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2023-12-02 15:20:20,758 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2023-12-02 15:20:20,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-12-02 15:20:20,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-12-02 15:20:20,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_netdev_mqs [2023-12-02 15:20:20,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_netdev_mqs [2023-12-02 15:20:20,758 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-12-02 15:20:20,758 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-12-02 15:20:20,758 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-12-02 15:20:20,758 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-12-02 15:20:20,759 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-12-02 15:20:20,759 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-12-02 15:20:20,759 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-12-02 15:20:20,759 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-12-02 15:20:20,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-12-02 15:20:20,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-12-02 15:20:20,759 INFO L130 BoogieDeclarations]: Found specification of procedure writeWepKeyRid [2023-12-02 15:20:20,759 INFO L138 BoogieDeclarations]: Found implementation of procedure writeWepKeyRid [2023-12-02 15:20:20,759 INFO L130 BoogieDeclarations]: Found specification of procedure proc_create_data [2023-12-02 15:20:20,759 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_create_data [2023-12-02 15:20:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 15:20:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2023-12-02 15:20:20,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2023-12-02 15:20:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure del_airo_dev [2023-12-02 15:20:20,760 INFO L138 BoogieDeclarations]: Found implementation of procedure del_airo_dev [2023-12-02 15:20:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:20:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-12-02 15:20:20,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-12-02 15:20:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-12-02 15:20:20,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-12-02 15:20:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 15:20:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure writeSsidRid [2023-12-02 15:20:20,761 INFO L138 BoogieDeclarations]: Found implementation of procedure writeSsidRid [2023-12-02 15:20:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-12-02 15:20:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure MoveWindow [2023-12-02 15:20:20,761 INFO L138 BoogieDeclarations]: Found implementation of procedure MoveWindow [2023-12-02 15:20:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2023-12-02 15:20:20,761 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2023-12-02 15:20:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 15:20:20,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 15:20:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-12-02 15:20:20,762 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-12-02 15:20:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure crypto_cipher_tfm [2023-12-02 15:20:20,762 INFO L138 BoogieDeclarations]: Found implementation of procedure crypto_cipher_tfm [2023-12-02 15:20:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2023-12-02 15:20:20,762 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2023-12-02 15:20:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-12-02 15:20:20,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-12-02 15:20:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure proc_close [2023-12-02 15:20:20,762 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_close [2023-12-02 15:20:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-12-02 15:20:20,763 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-12-02 15:20:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure airo_set_multicast_list [2023-12-02 15:20:20,763 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_set_multicast_list [2023-12-02 15:20:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-12-02 15:20:20,763 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-12-02 15:20:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-12-02 15:20:20,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-12-02 15:20:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure set_wep_key [2023-12-02 15:20:20,763 INFO L138 BoogieDeclarations]: Found implementation of procedure set_wep_key [2023-12-02 15:20:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure writeAPListRid [2023-12-02 15:20:20,764 INFO L138 BoogieDeclarations]: Found implementation of procedure writeAPListRid [2023-12-02 15:20:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-12-02 15:20:20,764 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-12-02 15:20:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure freezing [2023-12-02 15:20:20,764 INFO L138 BoogieDeclarations]: Found implementation of procedure freezing [2023-12-02 15:20:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:20:20,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:20:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure proc_stats_rid_open [2023-12-02 15:20:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_stats_rid_open [2023-12-02 15:20:20,765 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-12-02 15:20:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-12-02 15:20:20,765 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_send_event [2023-12-02 15:20:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_send_event [2023-12-02 15:20:20,765 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-12-02 15:20:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-12-02 15:20:20,765 INFO L130 BoogieDeclarations]: Found specification of procedure insb [2023-12-02 15:20:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure insb [2023-12-02 15:20:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-12-02 15:20:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-12-02 15:20:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-12-02 15:20:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-12-02 15:20:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2023-12-02 15:20:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2023-12-02 15:20:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure IN4500 [2023-12-02 15:20:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure IN4500 [2023-12-02 15:20:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2023-12-02 15:20:20,767 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2023-12-02 15:20:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 15:20:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 15:20:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-12-02 15:20:20,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-12-02 15:20:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_aux_lock_of_airo_info [2023-12-02 15:20:20,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_aux_lock_of_airo_info [2023-12-02 15:20:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2023-12-02 15:20:20,767 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2023-12-02 15:20:20,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-12-02 15:20:20,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-12-02 15:20:20,768 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-12-02 15:20:20,768 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-12-02 15:20:20,768 INFO L130 BoogieDeclarations]: Found specification of procedure bap_write [2023-12-02 15:20:20,768 INFO L138 BoogieDeclarations]: Found implementation of procedure bap_write [2023-12-02 15:20:20,768 INFO L130 BoogieDeclarations]: Found specification of procedure _init_airo_card [2023-12-02 15:20:20,768 INFO L138 BoogieDeclarations]: Found implementation of procedure _init_airo_card [2023-12-02 15:20:20,768 INFO L130 BoogieDeclarations]: Found specification of procedure waitbusy [2023-12-02 15:20:20,769 INFO L138 BoogieDeclarations]: Found implementation of procedure waitbusy [2023-12-02 15:20:20,769 INFO L130 BoogieDeclarations]: Found specification of procedure decapsulate [2023-12-02 15:20:20,769 INFO L138 BoogieDeclarations]: Found implementation of procedure decapsulate [2023-12-02 15:20:20,769 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2023-12-02 15:20:20,769 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2023-12-02 15:20:20,769 INFO L130 BoogieDeclarations]: Found specification of procedure proc_mkdir_mode [2023-12-02 15:20:20,769 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_mkdir_mode [2023-12-02 15:20:20,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 15:20:20,769 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 15:20:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure readBSSListRid [2023-12-02 15:20:20,770 INFO L138 BoogieDeclarations]: Found implementation of procedure readBSSListRid [2023-12-02 15:20:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-12-02 15:20:20,770 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-12-02 15:20:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure insw [2023-12-02 15:20:20,770 INFO L138 BoogieDeclarations]: Found implementation of procedure insw [2023-12-02 15:20:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2023-12-02 15:20:20,770 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2023-12-02 15:20:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure set_wep_tx_idx [2023-12-02 15:20:20,771 INFO L138 BoogieDeclarations]: Found implementation of procedure set_wep_tx_idx [2023-12-02 15:20:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-12-02 15:20:20,771 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-12-02 15:20:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-12-02 15:20:20,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-12-02 15:20:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 15:20:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-12-02 15:20:20,772 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-12-02 15:20:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure proc_write [2023-12-02 15:20:20,772 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_write [2023-12-02 15:20:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure up [2023-12-02 15:20:20,772 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2023-12-02 15:20:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 15:20:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2023-12-02 15:20:20,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2023-12-02 15:20:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_subtree [2023-12-02 15:20:20,773 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_subtree [2023-12-02 15:20:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure transmit_allocate [2023-12-02 15:20:20,773 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit_allocate [2023-12-02 15:20:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2023-12-02 15:20:20,773 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2023-12-02 15:20:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure proc_read [2023-12-02 15:20:20,773 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_read [2023-12-02 15:20:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2023-12-02 15:20:20,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2023-12-02 15:20:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 15:20:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-12-02 15:20:20,774 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-12-02 15:20:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-12-02 15:20:20,774 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-12-02 15:20:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure PC4500_accessrid [2023-12-02 15:20:20,774 INFO L138 BoogieDeclarations]: Found implementation of procedure PC4500_accessrid [2023-12-02 15:20:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure airo_send_event [2023-12-02 15:20:20,774 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_send_event [2023-12-02 15:20:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-12-02 15:20:20,775 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-12-02 15:20:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-12-02 15:20:20,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-12-02 15:20:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure airo_pci_resume [2023-12-02 15:20:20,775 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_pci_resume [2023-12-02 15:20:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-12-02 15:20:20,775 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-12-02 15:20:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-12-02 15:20:20,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-12-02 15:20:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure hex_to_bin [2023-12-02 15:20:20,776 INFO L138 BoogieDeclarations]: Found implementation of procedure hex_to_bin [2023-12-02 15:20:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure try_auto_wep [2023-12-02 15:20:20,776 INFO L138 BoogieDeclarations]: Found implementation of procedure try_auto_wep [2023-12-02 15:20:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-12-02 15:20:20,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-12-02 15:20:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-12-02 15:20:20,776 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-12-02 15:20:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure bap_read [2023-12-02 15:20:20,776 INFO L138 BoogieDeclarations]: Found implementation of procedure bap_read [2023-12-02 15:20:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure issuecommand [2023-12-02 15:20:20,776 INFO L138 BoogieDeclarations]: Found implementation of procedure issuecommand [2023-12-02 15:20:20,777 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-12-02 15:20:20,777 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-12-02 15:20:20,777 INFO L130 BoogieDeclarations]: Found specification of procedure bap_setup [2023-12-02 15:20:20,777 INFO L138 BoogieDeclarations]: Found implementation of procedure bap_setup [2023-12-02 15:20:20,777 INFO L130 BoogieDeclarations]: Found specification of procedure readAPListRid [2023-12-02 15:20:20,777 INFO L138 BoogieDeclarations]: Found implementation of procedure readAPListRid [2023-12-02 15:20:20,777 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-12-02 15:20:20,777 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-12-02 15:20:20,777 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-12-02 15:20:20,777 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-12-02 15:20:20,778 INFO L130 BoogieDeclarations]: Found specification of procedure airo_read_stats [2023-12-02 15:20:20,778 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_read_stats [2023-12-02 15:20:20,778 INFO L130 BoogieDeclarations]: Found specification of procedure airo_end_xmit [2023-12-02 15:20:20,778 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_end_xmit [2023-12-02 15:20:20,778 INFO L130 BoogieDeclarations]: Found specification of procedure readConfigRid [2023-12-02 15:20:20,778 INFO L138 BoogieDeclarations]: Found implementation of procedure readConfigRid [2023-12-02 15:20:20,778 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-12-02 15:20:20,778 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-12-02 15:20:20,778 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-12-02 15:20:20,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-12-02 15:20:20,778 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-12-02 15:20:20,779 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-12-02 15:20:20,779 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2023-12-02 15:20:20,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_setup [2023-12-02 15:20:20,779 INFO L130 BoogieDeclarations]: Found specification of procedure airo_open [2023-12-02 15:20:20,779 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_open [2023-12-02 15:20:20,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 15:20:20,779 INFO L130 BoogieDeclarations]: Found specification of procedure stop_airo_card [2023-12-02 15:20:20,779 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_airo_card [2023-12-02 15:20:20,779 INFO L130 BoogieDeclarations]: Found specification of procedure emmh32_update [2023-12-02 15:20:20,779 INFO L138 BoogieDeclarations]: Found implementation of procedure emmh32_update [2023-12-02 15:20:20,780 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2023-12-02 15:20:20,780 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2023-12-02 15:20:20,780 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2023-12-02 15:20:20,780 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2023-12-02 15:20:20,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-12-02 15:20:20,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-12-02 15:20:20,780 INFO L130 BoogieDeclarations]: Found specification of procedure readWepKeyRid [2023-12-02 15:20:20,780 INFO L138 BoogieDeclarations]: Found implementation of procedure readWepKeyRid [2023-12-02 15:20:20,780 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2023-12-02 15:20:20,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2023-12-02 15:20:20,780 INFO L130 BoogieDeclarations]: Found specification of procedure mpi_unmap_card [2023-12-02 15:20:20,781 INFO L138 BoogieDeclarations]: Found implementation of procedure mpi_unmap_card [2023-12-02 15:20:20,781 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-12-02 15:20:20,781 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-12-02 15:20:20,781 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-12-02 15:20:20,781 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-12-02 15:20:20,781 INFO L130 BoogieDeclarations]: Found specification of procedure proc_set_user [2023-12-02 15:20:20,781 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_set_user [2023-12-02 15:20:20,781 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-12-02 15:20:20,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-12-02 15:20:20,782 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2023-12-02 15:20:20,782 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2023-12-02 15:20:20,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-12-02 15:20:20,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-12-02 15:20:20,782 INFO L130 BoogieDeclarations]: Found specification of procedure airo_get_stats [2023-12-02 15:20:20,782 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_get_stats [2023-12-02 15:20:20,782 INFO L130 BoogieDeclarations]: Found specification of procedure PC4500_readrid [2023-12-02 15:20:20,782 INFO L138 BoogieDeclarations]: Found implementation of procedure PC4500_readrid [2023-12-02 15:20:20,782 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2023-12-02 15:20:20,782 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2023-12-02 15:20:20,783 INFO L130 BoogieDeclarations]: Found specification of procedure mpi_init_descriptors [2023-12-02 15:20:20,783 INFO L138 BoogieDeclarations]: Found implementation of procedure mpi_init_descriptors [2023-12-02 15:20:20,783 INFO L130 BoogieDeclarations]: Found specification of procedure get_dec_u16 [2023-12-02 15:20:20,783 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dec_u16 [2023-12-02 15:20:20,783 INFO L130 BoogieDeclarations]: Found specification of procedure enable_interrupts [2023-12-02 15:20:20,783 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_interrupts [2023-12-02 15:20:20,783 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-12-02 15:20:20,783 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-12-02 15:20:20,783 INFO L130 BoogieDeclarations]: Found specification of procedure airo_read_wireless_stats [2023-12-02 15:20:20,784 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_read_wireless_stats [2023-12-02 15:20:20,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:20:20,784 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2023-12-02 15:20:20,784 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2023-12-02 15:20:20,784 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2023-12-02 15:20:20,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2023-12-02 15:20:20,784 INFO L130 BoogieDeclarations]: Found specification of procedure airo_set_mac_address [2023-12-02 15:20:20,784 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_set_mac_address [2023-12-02 15:20:20,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-12-02 15:20:20,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-12-02 15:20:20,785 INFO L130 BoogieDeclarations]: Found specification of procedure emmh32_init [2023-12-02 15:20:20,785 INFO L138 BoogieDeclarations]: Found implementation of procedure emmh32_init [2023-12-02 15:20:20,785 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-12-02 15:20:20,785 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-12-02 15:20:20,785 INFO L130 BoogieDeclarations]: Found specification of procedure disable_MAC [2023-12-02 15:20:20,785 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_MAC [2023-12-02 15:20:20,785 INFO L130 BoogieDeclarations]: Found specification of procedure readStatsRid [2023-12-02 15:20:20,785 INFO L138 BoogieDeclarations]: Found implementation of procedure readStatsRid [2023-12-02 15:20:20,785 INFO L130 BoogieDeclarations]: Found specification of procedure encapsulate [2023-12-02 15:20:20,785 INFO L138 BoogieDeclarations]: Found implementation of procedure encapsulate [2023-12-02 15:20:20,786 INFO L130 BoogieDeclarations]: Found specification of procedure airo_set_promisc [2023-12-02 15:20:20,786 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_set_promisc [2023-12-02 15:20:22,246 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:20:22,253 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:20:22,566 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-12-02 15:20:49,923 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:20:53,839 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:20:53,840 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-12-02 15:20:53,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:20:53 BoogieIcfgContainer [2023-12-02 15:20:53,843 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:20:53,846 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:20:53,846 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:20:53,849 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:20:53,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:20:11" (1/3) ... [2023-12-02 15:20:53,850 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77658903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:20:53, skipping insertion in model container [2023-12-02 15:20:53,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:20:19" (2/3) ... [2023-12-02 15:20:53,850 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77658903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:20:53, skipping insertion in model container [2023-12-02 15:20:53,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:20:53" (3/3) ... [2023-12-02 15:20:53,852 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-wireless-airo.cil.i [2023-12-02 15:20:53,870 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:20:53,870 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-12-02 15:20:53,987 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:20:53,994 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;@72494f7b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:20:53,994 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-12-02 15:20:54,015 INFO L276 IsEmpty]: Start isEmpty. Operand has 3796 states, 2203 states have (on average 1.315024965955515) internal successors, (2897), 2366 states have internal predecessors, (2897), 1399 states have call successors, (1399), 192 states have call predecessors, (1399), 191 states have return successors, (1386), 1323 states have call predecessors, (1386), 1386 states have call successors, (1386) [2023-12-02 15:20:54,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-02 15:20:54,027 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:20:54,028 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:20:54,028 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)] === [2023-12-02 15:20:54,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:20:54,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1041409785, now seen corresponding path program 1 times [2023-12-02 15:20:54,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:20:54,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583690100] [2023-12-02 15:20:54,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:20:54,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:20:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:20:55,905 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-12-02 15:20:55,905 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:20:55,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583690100] [2023-12-02 15:20:55,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583690100] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:20:55,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:20:55,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:20:55,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939726510] [2023-12-02 15:20:55,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:20:55,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 15:20:55,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:20:55,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 15:20:55,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:20:55,961 INFO L87 Difference]: Start difference. First operand has 3796 states, 2203 states have (on average 1.315024965955515) internal successors, (2897), 2366 states have internal predecessors, (2897), 1399 states have call successors, (1399), 192 states have call predecessors, (1399), 191 states have return successors, (1386), 1323 states have call predecessors, (1386), 1386 states have call successors, (1386) Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 15:20:58,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:21:00,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:21:02,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:21:09,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:21:11,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:21:13,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:21:17,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:21:19,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:21:21,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:21:23,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:21:25,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:21:25,301 INFO L93 Difference]: Finished difference Result 7559 states and 11450 transitions. [2023-12-02 15:21:25,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:21:25,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 68 [2023-12-02 15:21:25,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:21:25,476 INFO L225 Difference]: With dead ends: 7559 [2023-12-02 15:21:25,476 INFO L226 Difference]: Without dead ends: 3774 [2023-12-02 15:21:25,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 15:21:25,510 INFO L413 NwaCegarLoop]: 5113 mSDtfsCounter, 5641 mSDsluCounter, 10212 mSDsCounter, 0 mSdLazyCounter, 1649 mSolverCounterSat, 2 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5653 SdHoareTripleChecker+Valid, 15325 SdHoareTripleChecker+Invalid, 1660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1649 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.6s IncrementalHoareTripleChecker+Time [2023-12-02 15:21:25,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5653 Valid, 15325 Invalid, 1660 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1649 Invalid, 9 Unknown, 0 Unchecked, 28.6s Time] [2023-12-02 15:21:25,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3774 states. [2023-12-02 15:21:25,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3774 to 3774. [2023-12-02 15:21:25,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3774 states, 2197 states have (on average 1.3067819754210286) internal successors, (2871), 2351 states have internal predecessors, (2871), 1383 states have call successors, (1383), 192 states have call predecessors, (1383), 191 states have return successors, (1380), 1317 states have call predecessors, (1380), 1380 states have call successors, (1380) [2023-12-02 15:21:25,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3774 states to 3774 states and 5634 transitions. [2023-12-02 15:21:25,830 INFO L78 Accepts]: Start accepts. Automaton has 3774 states and 5634 transitions. Word has length 68 [2023-12-02 15:21:25,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:21:25,831 INFO L495 AbstractCegarLoop]: Abstraction has 3774 states and 5634 transitions. [2023-12-02 15:21:25,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 15:21:25,831 INFO L276 IsEmpty]: Start isEmpty. Operand 3774 states and 5634 transitions. [2023-12-02 15:21:25,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 15:21:25,836 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:21:25,836 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:21:25,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 15:21:25,837 INFO L420 AbstractCegarLoop]: === Iteration 2 === 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)] === [2023-12-02 15:21:25,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:21:25,838 INFO L85 PathProgramCache]: Analyzing trace with hash 539615052, now seen corresponding path program 1 times [2023-12-02 15:21:25,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:21:25,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649458178] [2023-12-02 15:21:25,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:21:25,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:21:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:21:27,164 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-12-02 15:21:27,165 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:21:27,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649458178] [2023-12-02 15:21:27,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649458178] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:21:27,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:21:27,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:21:27,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198203990] [2023-12-02 15:21:27,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:21:27,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 15:21:27,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:21:27,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 15:21:27,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:21:27,169 INFO L87 Difference]: Start difference. First operand 3774 states and 5634 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 15:21:30,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:21:32,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:21:34,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:21:40,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:21:42,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:21:44,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:21:49,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:21:51,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:21:53,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:21:55,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:21:57,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:21:59,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:21:59,233 INFO L93 Difference]: Finished difference Result 3780 states and 5639 transitions. [2023-12-02 15:21:59,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:21:59,233 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (14), 3 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 73 [2023-12-02 15:21:59,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:21:59,266 INFO L225 Difference]: With dead ends: 3780 [2023-12-02 15:21:59,266 INFO L226 Difference]: Without dead ends: 3778 [2023-12-02 15:21:59,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 15:21:59,270 INFO L413 NwaCegarLoop]: 5085 mSDtfsCounter, 5606 mSDsluCounter, 10150 mSDsCounter, 0 mSdLazyCounter, 1648 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5616 SdHoareTripleChecker+Valid, 15235 SdHoareTripleChecker+Invalid, 1659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1648 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.5s IncrementalHoareTripleChecker+Time [2023-12-02 15:21:59,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5616 Valid, 15235 Invalid, 1659 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1648 Invalid, 10 Unknown, 0 Unchecked, 31.5s Time] [2023-12-02 15:21:59,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3778 states. [2023-12-02 15:21:59,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3778 to 3778. [2023-12-02 15:21:59,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3778 states, 2200 states have (on average 1.3063636363636364) internal successors, (2874), 2354 states have internal predecessors, (2874), 1383 states have call successors, (1383), 193 states have call predecessors, (1383), 192 states have return successors, (1380), 1317 states have call predecessors, (1380), 1380 states have call successors, (1380) [2023-12-02 15:21:59,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3778 states to 3778 states and 5637 transitions. [2023-12-02 15:21:59,646 INFO L78 Accepts]: Start accepts. Automaton has 3778 states and 5637 transitions. Word has length 73 [2023-12-02 15:21:59,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:21:59,647 INFO L495 AbstractCegarLoop]: Abstraction has 3778 states and 5637 transitions. [2023-12-02 15:21:59,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 15:21:59,648 INFO L276 IsEmpty]: Start isEmpty. Operand 3778 states and 5637 transitions. [2023-12-02 15:21:59,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 15:21:59,652 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:21:59,652 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:21:59,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 15:21:59,653 INFO L420 AbstractCegarLoop]: === Iteration 3 === 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)] === [2023-12-02 15:21:59,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:21:59,653 INFO L85 PathProgramCache]: Analyzing trace with hash 294976153, now seen corresponding path program 1 times [2023-12-02 15:21:59,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:21:59,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577810312] [2023-12-02 15:21:59,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:21:59,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:21:59,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:22:00,934 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-12-02 15:22:00,935 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:22:00,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577810312] [2023-12-02 15:22:00,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577810312] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:22:00,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:22:00,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:22:00,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764626419] [2023-12-02 15:22:00,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:22:00,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 15:22:00,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:22:00,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 15:22:00,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:22:00,938 INFO L87 Difference]: Start difference. First operand 3778 states and 5637 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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) [2023-12-02 15:22:03,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:22:05,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:22:07,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:22:13,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:22:16,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:22:18,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:22:22,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:22:24,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:22:26,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:22:29,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:22:29,607 INFO L93 Difference]: Finished difference Result 3784 states and 5642 transitions. [2023-12-02 15:22:29,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:22:29,608 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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 78 [2023-12-02 15:22:29,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:22:29,650 INFO L225 Difference]: With dead ends: 3784 [2023-12-02 15:22:29,650 INFO L226 Difference]: Without dead ends: 3782 [2023-12-02 15:22:29,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 15:22:29,655 INFO L413 NwaCegarLoop]: 5085 mSDtfsCounter, 5606 mSDsluCounter, 10150 mSDsCounter, 0 mSdLazyCounter, 1649 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5615 SdHoareTripleChecker+Valid, 15235 SdHoareTripleChecker+Invalid, 1659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1649 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:22:29,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5615 Valid, 15235 Invalid, 1659 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1649 Invalid, 9 Unknown, 0 Unchecked, 28.2s Time] [2023-12-02 15:22:29,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3782 states. [2023-12-02 15:22:29,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3782 to 3782. [2023-12-02 15:22:29,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3782 states, 2203 states have (on average 1.3059464366772582) internal successors, (2877), 2357 states have internal predecessors, (2877), 1383 states have call successors, (1383), 194 states have call predecessors, (1383), 193 states have return successors, (1380), 1317 states have call predecessors, (1380), 1380 states have call successors, (1380) [2023-12-02 15:22:29,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3782 states to 3782 states and 5640 transitions. [2023-12-02 15:22:29,951 INFO L78 Accepts]: Start accepts. Automaton has 3782 states and 5640 transitions. Word has length 78 [2023-12-02 15:22:29,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:22:29,952 INFO L495 AbstractCegarLoop]: Abstraction has 3782 states and 5640 transitions. [2023-12-02 15:22:29,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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) [2023-12-02 15:22:29,953 INFO L276 IsEmpty]: Start isEmpty. Operand 3782 states and 5640 transitions. [2023-12-02 15:22:29,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 15:22:29,956 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:22:29,956 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:22:29,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 15:22:29,957 INFO L420 AbstractCegarLoop]: === Iteration 4 === 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)] === [2023-12-02 15:22:29,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:22:29,957 INFO L85 PathProgramCache]: Analyzing trace with hash -513474772, now seen corresponding path program 1 times [2023-12-02 15:22:29,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:22:29,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664769898] [2023-12-02 15:22:29,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:22:29,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:22:30,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:22:31,026 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-02 15:22:31,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:22:31,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664769898] [2023-12-02 15:22:31,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664769898] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:22:31,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:22:31,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:22:31,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848828348] [2023-12-02 15:22:31,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:22:31,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 15:22:31,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:22:31,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 15:22:31,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:22:31,031 INFO L87 Difference]: Start difference. First operand 3782 states and 5640 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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) [2023-12-02 15:22:33,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:22:35,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:22:37,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:22:44,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:22:46,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:22:48,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:22:53,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:22:55,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:22:57,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:22:59,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:22:59,244 INFO L93 Difference]: Finished difference Result 3827 states and 5681 transitions. [2023-12-02 15:22:59,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:22:59,245 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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 83 [2023-12-02 15:22:59,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:22:59,278 INFO L225 Difference]: With dead ends: 3827 [2023-12-02 15:22:59,278 INFO L226 Difference]: Without dead ends: 3825 [2023-12-02 15:22:59,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 15:22:59,283 INFO L413 NwaCegarLoop]: 5083 mSDtfsCounter, 5524 mSDsluCounter, 10239 mSDsCounter, 0 mSdLazyCounter, 1682 mSolverCounterSat, 2 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5532 SdHoareTripleChecker+Valid, 15322 SdHoareTripleChecker+Invalid, 1693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1682 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.8s IncrementalHoareTripleChecker+Time [2023-12-02 15:22:59,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5532 Valid, 15322 Invalid, 1693 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1682 Invalid, 9 Unknown, 0 Unchecked, 27.8s Time] [2023-12-02 15:22:59,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3825 states. [2023-12-02 15:22:59,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3825 to 3825. [2023-12-02 15:22:59,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3825 states, 2228 states have (on average 1.303411131059246) internal successors, (2904), 2382 states have internal predecessors, (2904), 1389 states have call successors, (1389), 206 states have call predecessors, (1389), 205 states have return successors, (1386), 1323 states have call predecessors, (1386), 1386 states have call successors, (1386) [2023-12-02 15:22:59,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3825 states to 3825 states and 5679 transitions. [2023-12-02 15:22:59,605 INFO L78 Accepts]: Start accepts. Automaton has 3825 states and 5679 transitions. Word has length 83 [2023-12-02 15:22:59,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:22:59,606 INFO L495 AbstractCegarLoop]: Abstraction has 3825 states and 5679 transitions. [2023-12-02 15:22:59,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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) [2023-12-02 15:22:59,606 INFO L276 IsEmpty]: Start isEmpty. Operand 3825 states and 5679 transitions. [2023-12-02 15:22:59,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-02 15:22:59,609 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:22:59,609 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:22:59,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 15:22:59,610 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)] === [2023-12-02 15:22:59,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:22:59,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1106048569, now seen corresponding path program 1 times [2023-12-02 15:22:59,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:22:59,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218496099] [2023-12-02 15:22:59,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:22:59,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:22:59,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:23:00,750 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2023-12-02 15:23:00,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:23:00,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218496099] [2023-12-02 15:23:00,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218496099] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:23:00,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:23:00,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:23:00,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261798853] [2023-12-02 15:23:00,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:23:00,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 15:23:00,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:23:00,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 15:23:00,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:23:00,753 INFO L87 Difference]: Start difference. First operand 3825 states and 5679 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 15:23:03,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:23:05,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:23:07,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:23:15,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:23:17,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:23:19,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:23:24,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:23:26,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:23:28,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:23:30,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:23:30,394 INFO L93 Difference]: Finished difference Result 3831 states and 5684 transitions. [2023-12-02 15:23:30,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:23:30,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 88 [2023-12-02 15:23:30,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:23:30,423 INFO L225 Difference]: With dead ends: 3831 [2023-12-02 15:23:30,423 INFO L226 Difference]: Without dead ends: 3829 [2023-12-02 15:23:30,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 15:23:30,426 INFO L413 NwaCegarLoop]: 5085 mSDtfsCounter, 5606 mSDsluCounter, 10150 mSDsCounter, 0 mSdLazyCounter, 1649 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5613 SdHoareTripleChecker+Valid, 15235 SdHoareTripleChecker+Invalid, 1659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1649 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:23:30,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5613 Valid, 15235 Invalid, 1659 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1649 Invalid, 9 Unknown, 0 Unchecked, 29.2s Time] [2023-12-02 15:23:30,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3829 states. [2023-12-02 15:23:30,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3829 to 3829. [2023-12-02 15:23:30,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3829 states, 2231 states have (on average 1.3030031376064546) internal successors, (2907), 2385 states have internal predecessors, (2907), 1389 states have call successors, (1389), 207 states have call predecessors, (1389), 206 states have return successors, (1386), 1323 states have call predecessors, (1386), 1386 states have call successors, (1386) [2023-12-02 15:23:30,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3829 states to 3829 states and 5682 transitions. [2023-12-02 15:23:30,749 INFO L78 Accepts]: Start accepts. Automaton has 3829 states and 5682 transitions. Word has length 88 [2023-12-02 15:23:30,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:23:30,750 INFO L495 AbstractCegarLoop]: Abstraction has 3829 states and 5682 transitions. [2023-12-02 15:23:30,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 15:23:30,750 INFO L276 IsEmpty]: Start isEmpty. Operand 3829 states and 5682 transitions. [2023-12-02 15:23:30,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-02 15:23:30,753 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:23:30,753 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:23:30,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 15:23:30,754 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)] === [2023-12-02 15:23:30,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:23:30,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1716351636, now seen corresponding path program 1 times [2023-12-02 15:23:30,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:23:30,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47298243] [2023-12-02 15:23:30,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:23:30,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:23:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:23:31,851 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-12-02 15:23:31,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:23:31,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47298243] [2023-12-02 15:23:31,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47298243] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:23:31,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:23:31,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:23:31,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452208657] [2023-12-02 15:23:31,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:23:31,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 15:23:31,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:23:31,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 15:23:31,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:23:31,854 INFO L87 Difference]: Start difference. First operand 3829 states and 5682 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 15:23:34,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:23:36,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:23:38,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:23:45,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:23:47,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:23:49,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:23:54,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:23:56,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:23:58,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:24:00,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:24:00,571 INFO L93 Difference]: Finished difference Result 3835 states and 5687 transitions. [2023-12-02 15:24:00,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:24:00,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 108 [2023-12-02 15:24:00,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:24:00,599 INFO L225 Difference]: With dead ends: 3835 [2023-12-02 15:24:00,599 INFO L226 Difference]: Without dead ends: 3833 [2023-12-02 15:24:00,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 15:24:00,603 INFO L413 NwaCegarLoop]: 5085 mSDtfsCounter, 5597 mSDsluCounter, 10150 mSDsCounter, 0 mSdLazyCounter, 1649 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5603 SdHoareTripleChecker+Valid, 15235 SdHoareTripleChecker+Invalid, 1659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1649 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:24:00,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5603 Valid, 15235 Invalid, 1659 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1649 Invalid, 9 Unknown, 0 Unchecked, 28.2s Time] [2023-12-02 15:24:00,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3833 states. [2023-12-02 15:24:00,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3833 to 3833. [2023-12-02 15:24:00,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3833 states, 2234 states have (on average 1.3025962399283797) internal successors, (2910), 2388 states have internal predecessors, (2910), 1389 states have call successors, (1389), 208 states have call predecessors, (1389), 207 states have return successors, (1386), 1323 states have call predecessors, (1386), 1386 states have call successors, (1386) [2023-12-02 15:24:00,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3833 states to 3833 states and 5685 transitions. [2023-12-02 15:24:00,930 INFO L78 Accepts]: Start accepts. Automaton has 3833 states and 5685 transitions. Word has length 108 [2023-12-02 15:24:00,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:24:00,930 INFO L495 AbstractCegarLoop]: Abstraction has 3833 states and 5685 transitions. [2023-12-02 15:24:00,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 15:24:00,931 INFO L276 IsEmpty]: Start isEmpty. Operand 3833 states and 5685 transitions. [2023-12-02 15:24:00,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-02 15:24:00,934 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:24:00,934 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:24:00,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 15:24:00,935 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)] === [2023-12-02 15:24:00,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:24:00,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1641506343, now seen corresponding path program 1 times [2023-12-02 15:24:00,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:24:00,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778105391] [2023-12-02 15:24:00,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:24:00,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:24:01,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:24:01,750 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-12-02 15:24:01,751 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:24:01,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778105391] [2023-12-02 15:24:01,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778105391] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:24:01,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:24:01,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:24:01,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341885716] [2023-12-02 15:24:01,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:24:01,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 15:24:01,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:24:01,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 15:24:01,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:24:01,753 INFO L87 Difference]: Start difference. First operand 3833 states and 5685 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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) [2023-12-02 15:24:04,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:24:06,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:24:08,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:24:15,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:24:17,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:24:19,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:24:24,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:24:26,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:24:28,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:24:29,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:24:29,852 INFO L93 Difference]: Finished difference Result 3839 states and 5690 transitions. [2023-12-02 15:24:29,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:24:29,853 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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 98 [2023-12-02 15:24:29,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:24:29,886 INFO L225 Difference]: With dead ends: 3839 [2023-12-02 15:24:29,886 INFO L226 Difference]: Without dead ends: 3837 [2023-12-02 15:24:29,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 15:24:29,891 INFO L413 NwaCegarLoop]: 5085 mSDtfsCounter, 5606 mSDsluCounter, 10150 mSDsCounter, 0 mSdLazyCounter, 1650 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5611 SdHoareTripleChecker+Valid, 15235 SdHoareTripleChecker+Invalid, 1659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1650 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.6s IncrementalHoareTripleChecker+Time [2023-12-02 15:24:29,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5611 Valid, 15235 Invalid, 1659 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1650 Invalid, 8 Unknown, 0 Unchecked, 27.6s Time] [2023-12-02 15:24:29,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3837 states. [2023-12-02 15:24:30,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3837 to 3837. [2023-12-02 15:24:30,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3837 states, 2237 states have (on average 1.3021904336164507) internal successors, (2913), 2391 states have internal predecessors, (2913), 1389 states have call successors, (1389), 209 states have call predecessors, (1389), 208 states have return successors, (1386), 1323 states have call predecessors, (1386), 1386 states have call successors, (1386) [2023-12-02 15:24:30,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3837 states to 3837 states and 5688 transitions. [2023-12-02 15:24:30,215 INFO L78 Accepts]: Start accepts. Automaton has 3837 states and 5688 transitions. Word has length 98 [2023-12-02 15:24:30,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:24:30,215 INFO L495 AbstractCegarLoop]: Abstraction has 3837 states and 5688 transitions. [2023-12-02 15:24:30,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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) [2023-12-02 15:24:30,215 INFO L276 IsEmpty]: Start isEmpty. Operand 3837 states and 5688 transitions. [2023-12-02 15:24:30,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-02 15:24:30,217 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:24:30,218 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:24:30,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 15:24:30,218 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)] === [2023-12-02 15:24:30,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:24:30,218 INFO L85 PathProgramCache]: Analyzing trace with hash -119060756, now seen corresponding path program 1 times [2023-12-02 15:24:30,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:24:30,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510508389] [2023-12-02 15:24:30,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:24:30,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:24:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:24:30,977 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2023-12-02 15:24:30,977 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:24:30,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510508389] [2023-12-02 15:24:30,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510508389] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:24:30,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:24:30,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:24:30,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960366464] [2023-12-02 15:24:30,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:24:30,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 15:24:30,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:24:30,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 15:24:30,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:24:30,979 INFO L87 Difference]: Start difference. First operand 3837 states and 5688 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 15:24:33,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:24:35,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:24:37,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:24:45,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:24:47,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:24:49,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:24:54,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:24:56,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:24:58,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:25:00,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:25:02,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:25:02,552 INFO L93 Difference]: Finished difference Result 3843 states and 5693 transitions. [2023-12-02 15:25:02,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:25:02,553 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 103 [2023-12-02 15:25:02,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:25:02,571 INFO L225 Difference]: With dead ends: 3843 [2023-12-02 15:25:02,571 INFO L226 Difference]: Without dead ends: 3841 [2023-12-02 15:25:02,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 15:25:02,574 INFO L413 NwaCegarLoop]: 5085 mSDtfsCounter, 5606 mSDsluCounter, 10150 mSDsCounter, 0 mSdLazyCounter, 1649 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5610 SdHoareTripleChecker+Valid, 15235 SdHoareTripleChecker+Invalid, 1659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1649 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:25:02,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5610 Valid, 15235 Invalid, 1659 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1649 Invalid, 9 Unknown, 0 Unchecked, 31.0s Time] [2023-12-02 15:25:02,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3841 states. [2023-12-02 15:25:02,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3841 to 3841. [2023-12-02 15:25:02,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3841 states, 2240 states have (on average 1.3017857142857143) internal successors, (2916), 2394 states have internal predecessors, (2916), 1389 states have call successors, (1389), 210 states have call predecessors, (1389), 209 states have return successors, (1386), 1323 states have call predecessors, (1386), 1386 states have call successors, (1386) [2023-12-02 15:25:02,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3841 states to 3841 states and 5691 transitions. [2023-12-02 15:25:02,844 INFO L78 Accepts]: Start accepts. Automaton has 3841 states and 5691 transitions. Word has length 103 [2023-12-02 15:25:02,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:25:02,845 INFO L495 AbstractCegarLoop]: Abstraction has 3841 states and 5691 transitions. [2023-12-02 15:25:02,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 15:25:02,845 INFO L276 IsEmpty]: Start isEmpty. Operand 3841 states and 5691 transitions. [2023-12-02 15:25:02,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-02 15:25:02,847 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:25:02,847 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:25:02,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 15:25:02,847 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-02 15:25:02,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:25:02,848 INFO L85 PathProgramCache]: Analyzing trace with hash -69868167, now seen corresponding path program 1 times [2023-12-02 15:25:02,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:25:02,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917841232] [2023-12-02 15:25:02,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:25:02,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:25:02,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:25:03,580 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-12-02 15:25:03,580 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:25:03,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917841232] [2023-12-02 15:25:03,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917841232] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:25:03,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:25:03,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:25:03,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288846395] [2023-12-02 15:25:03,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:25:03,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 15:25:03,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:25:03,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 15:25:03,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:25:03,583 INFO L87 Difference]: Start difference. First operand 3841 states and 5691 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 15:25:06,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:25:08,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:25:10,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:25:18,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:25:20,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:25:22,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:25:27,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:25:29,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:25:31,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:25:33,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:25:33,503 INFO L93 Difference]: Finished difference Result 3847 states and 5696 transitions. [2023-12-02 15:25:33,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:25:33,504 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 108 [2023-12-02 15:25:33,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:25:33,519 INFO L225 Difference]: With dead ends: 3847 [2023-12-02 15:25:33,519 INFO L226 Difference]: Without dead ends: 3845 [2023-12-02 15:25:33,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 15:25:33,523 INFO L413 NwaCegarLoop]: 5085 mSDtfsCounter, 5606 mSDsluCounter, 10150 mSDsCounter, 0 mSdLazyCounter, 1650 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5609 SdHoareTripleChecker+Valid, 15235 SdHoareTripleChecker+Invalid, 1659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1650 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.4s IncrementalHoareTripleChecker+Time [2023-12-02 15:25:33,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5609 Valid, 15235 Invalid, 1659 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1650 Invalid, 8 Unknown, 0 Unchecked, 29.4s Time] [2023-12-02 15:25:33,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3845 states. [2023-12-02 15:25:33,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3845 to 3845. [2023-12-02 15:25:33,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3845 states, 2243 states have (on average 1.3013820775746767) internal successors, (2919), 2397 states have internal predecessors, (2919), 1389 states have call successors, (1389), 211 states have call predecessors, (1389), 210 states have return successors, (1386), 1323 states have call predecessors, (1386), 1386 states have call successors, (1386) [2023-12-02 15:25:33,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3845 states to 3845 states and 5694 transitions. [2023-12-02 15:25:33,894 INFO L78 Accepts]: Start accepts. Automaton has 3845 states and 5694 transitions. Word has length 108 [2023-12-02 15:25:33,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:25:33,895 INFO L495 AbstractCegarLoop]: Abstraction has 3845 states and 5694 transitions. [2023-12-02 15:25:33,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 15:25:33,895 INFO L276 IsEmpty]: Start isEmpty. Operand 3845 states and 5694 transitions. [2023-12-02 15:25:33,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-02 15:25:33,897 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:25:33,897 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:25:33,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 15:25:33,897 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-02 15:25:33,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:25:33,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1262266796, now seen corresponding path program 1 times [2023-12-02 15:25:33,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:25:33,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396167999] [2023-12-02 15:25:33,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:25:33,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:25:34,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:25:34,838 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2023-12-02 15:25:34,838 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:25:34,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396167999] [2023-12-02 15:25:34,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396167999] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:25:34,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:25:34,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:25:34,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057641366] [2023-12-02 15:25:34,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:25:34,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 15:25:34,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:25:34,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 15:25:34,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:25:34,841 INFO L87 Difference]: Start difference. First operand 3845 states and 5694 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-02 15:25:37,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:25:39,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:25:41,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:25:49,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:25:51,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:25:53,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:25:58,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:26:00,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:26:02,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:26:03,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:26:03,940 INFO L93 Difference]: Finished difference Result 3851 states and 5699 transitions. [2023-12-02 15:26:03,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:26:03,941 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 128 [2023-12-02 15:26:03,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:26:03,962 INFO L225 Difference]: With dead ends: 3851 [2023-12-02 15:26:03,963 INFO L226 Difference]: Without dead ends: 3849 [2023-12-02 15:26:03,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 15:26:03,967 INFO L413 NwaCegarLoop]: 5085 mSDtfsCounter, 5597 mSDsluCounter, 10150 mSDsCounter, 0 mSdLazyCounter, 1649 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5599 SdHoareTripleChecker+Valid, 15235 SdHoareTripleChecker+Invalid, 1659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1649 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.5s IncrementalHoareTripleChecker+Time [2023-12-02 15:26:03,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5599 Valid, 15235 Invalid, 1659 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1649 Invalid, 9 Unknown, 0 Unchecked, 28.5s Time] [2023-12-02 15:26:03,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3849 states. [2023-12-02 15:26:04,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3849 to 3849. [2023-12-02 15:26:04,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3849 states, 2246 states have (on average 1.300979519145147) internal successors, (2922), 2400 states have internal predecessors, (2922), 1389 states have call successors, (1389), 212 states have call predecessors, (1389), 211 states have return successors, (1386), 1323 states have call predecessors, (1386), 1386 states have call successors, (1386) [2023-12-02 15:26:04,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3849 states to 3849 states and 5697 transitions. [2023-12-02 15:26:04,322 INFO L78 Accepts]: Start accepts. Automaton has 3849 states and 5697 transitions. Word has length 128 [2023-12-02 15:26:04,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:26:04,323 INFO L495 AbstractCegarLoop]: Abstraction has 3849 states and 5697 transitions. [2023-12-02 15:26:04,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-02 15:26:04,323 INFO L276 IsEmpty]: Start isEmpty. Operand 3849 states and 5697 transitions. [2023-12-02 15:26:04,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-02 15:26:04,325 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:26:04,325 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:26:04,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 15:26:04,325 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-02 15:26:04,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:26:04,326 INFO L85 PathProgramCache]: Analyzing trace with hash 386062617, now seen corresponding path program 1 times [2023-12-02 15:26:04,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:26:04,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447304707] [2023-12-02 15:26:04,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:26:04,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:26:04,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:26:05,163 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2023-12-02 15:26:05,164 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:26:05,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447304707] [2023-12-02 15:26:05,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447304707] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:26:05,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:26:05,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:26:05,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308348182] [2023-12-02 15:26:05,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:26:05,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 15:26:05,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:26:05,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 15:26:05,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:26:05,166 INFO L87 Difference]: Start difference. First operand 3849 states and 5697 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 15:26:07,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:26:09,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:26:11,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:26:19,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:26:21,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:26:23,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:26:28,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:26:30,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:26:32,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:26:34,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:26:34,267 INFO L93 Difference]: Finished difference Result 3855 states and 5702 transitions. [2023-12-02 15:26:34,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:26:34,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 118 [2023-12-02 15:26:34,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:26:34,292 INFO L225 Difference]: With dead ends: 3855 [2023-12-02 15:26:34,293 INFO L226 Difference]: Without dead ends: 3851 [2023-12-02 15:26:34,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 15:26:34,297 INFO L413 NwaCegarLoop]: 5085 mSDtfsCounter, 5606 mSDsluCounter, 10150 mSDsCounter, 0 mSdLazyCounter, 1649 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5607 SdHoareTripleChecker+Valid, 15235 SdHoareTripleChecker+Invalid, 1659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1649 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.5s IncrementalHoareTripleChecker+Time [2023-12-02 15:26:34,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5607 Valid, 15235 Invalid, 1659 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1649 Invalid, 9 Unknown, 0 Unchecked, 28.5s Time] [2023-12-02 15:26:34,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3851 states. [2023-12-02 15:26:34,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3851 to 3851. [2023-12-02 15:26:34,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3851 states, 2248 states have (on average 1.3002669039145907) internal successors, (2923), 2401 states have internal predecessors, (2923), 1389 states have call successors, (1389), 213 states have call predecessors, (1389), 211 states have return successors, (1386), 1323 states have call predecessors, (1386), 1386 states have call successors, (1386) [2023-12-02 15:26:34,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3851 states to 3851 states and 5698 transitions. [2023-12-02 15:26:34,637 INFO L78 Accepts]: Start accepts. Automaton has 3851 states and 5698 transitions. Word has length 118 [2023-12-02 15:26:34,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:26:34,638 INFO L495 AbstractCegarLoop]: Abstraction has 3851 states and 5698 transitions. [2023-12-02 15:26:34,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 15:26:34,638 INFO L276 IsEmpty]: Start isEmpty. Operand 3851 states and 5698 transitions. [2023-12-02 15:26:34,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-02 15:26:34,640 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:26:34,640 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:26:34,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-02 15:26:34,640 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-02 15:26:34,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:26:34,641 INFO L85 PathProgramCache]: Analyzing trace with hash -893252556, now seen corresponding path program 1 times [2023-12-02 15:26:34,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:26:34,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744525106] [2023-12-02 15:26:34,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:26:34,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:26:34,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:26:35,445 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2023-12-02 15:26:35,445 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:26:35,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744525106] [2023-12-02 15:26:35,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744525106] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:26:35,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:26:35,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:26:35,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672141364] [2023-12-02 15:26:35,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:26:35,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 15:26:35,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:26:35,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 15:26:35,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:26:35,447 INFO L87 Difference]: Start difference. First operand 3851 states and 5698 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-02 15:26:38,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:26:40,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:26:42,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:26:49,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:26:51,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:26:53,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:26:58,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:27:00,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:27:02,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:27:04,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:27:04,102 INFO L93 Difference]: Finished difference Result 3851 states and 5698 transitions. [2023-12-02 15:27:04,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:27:04,103 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 138 [2023-12-02 15:27:04,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:27:04,122 INFO L225 Difference]: With dead ends: 3851 [2023-12-02 15:27:04,122 INFO L226 Difference]: Without dead ends: 3768 [2023-12-02 15:27:04,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-02 15:27:04,127 INFO L413 NwaCegarLoop]: 5083 mSDtfsCounter, 5593 mSDsluCounter, 10149 mSDsCounter, 0 mSdLazyCounter, 1645 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5593 SdHoareTripleChecker+Valid, 15232 SdHoareTripleChecker+Invalid, 1654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1645 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:27:04,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5593 Valid, 15232 Invalid, 1654 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1645 Invalid, 8 Unknown, 0 Unchecked, 28.0s Time] [2023-12-02 15:27:04,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3768 states. [2023-12-02 15:27:04,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3768 to 3768. [2023-12-02 15:27:04,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3768 states, 2201 states have (on average 1.3044070876874148) internal successors, (2871), 2351 states have internal predecessors, (2871), 1365 states have call successors, (1365), 200 states have call predecessors, (1365), 200 states have return successors, (1365), 1302 states have call predecessors, (1365), 1365 states have call successors, (1365) [2023-12-02 15:27:04,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3768 states to 3768 states and 5601 transitions. [2023-12-02 15:27:04,533 INFO L78 Accepts]: Start accepts. Automaton has 3768 states and 5601 transitions. Word has length 138 [2023-12-02 15:27:04,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:27:04,534 INFO L495 AbstractCegarLoop]: Abstraction has 3768 states and 5601 transitions. [2023-12-02 15:27:04,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-02 15:27:04,534 INFO L276 IsEmpty]: Start isEmpty. Operand 3768 states and 5601 transitions. [2023-12-02 15:27:04,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2023-12-02 15:27:04,547 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:27:04,548 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:27:04,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-02 15:27:04,548 INFO L420 AbstractCegarLoop]: === Iteration 13 === 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)] === [2023-12-02 15:27:04,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:27:04,549 INFO L85 PathProgramCache]: Analyzing trace with hash 865021357, now seen corresponding path program 1 times [2023-12-02 15:27:04,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:27:04,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464884400] [2023-12-02 15:27:04,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:27:04,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:27:04,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:27:05,358 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-12-02 15:27:05,358 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:27:05,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464884400] [2023-12-02 15:27:05,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464884400] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:27:05,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:27:05,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:27:05,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631698005] [2023-12-02 15:27:05,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:27:05,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:27:05,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:27:05,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:27:05,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:27:05,361 INFO L87 Difference]: Start difference. First operand 3768 states and 5601 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2023-12-02 15:27:07,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:27:09,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:27:11,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:27:16,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:27:18,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:27:23,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:27:25,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:27:26,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:27:26,398 INFO L93 Difference]: Finished difference Result 7514 states and 11176 transitions. [2023-12-02 15:27:26,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:27:26,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 246 [2023-12-02 15:27:26,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:27:26,416 INFO L225 Difference]: With dead ends: 7514 [2023-12-02 15:27:26,416 INFO L226 Difference]: Without dead ends: 3771 [2023-12-02 15:27:26,440 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 [2023-12-02 15:27:26,441 INFO L413 NwaCegarLoop]: 5025 mSDtfsCounter, 1 mSDsluCounter, 5023 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10048 SdHoareTripleChecker+Invalid, 1081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2023-12-02 15:27:26,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10048 Invalid, 1081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1075 Invalid, 6 Unknown, 0 Unchecked, 20.5s Time] [2023-12-02 15:27:26,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3771 states. [2023-12-02 15:27:27,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3771 to 3769. [2023-12-02 15:27:27,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3769 states, 2202 states have (on average 1.3042688465031789) internal successors, (2872), 2352 states have internal predecessors, (2872), 1365 states have call successors, (1365), 200 states have call predecessors, (1365), 200 states have return successors, (1365), 1302 states have call predecessors, (1365), 1365 states have call successors, (1365) [2023-12-02 15:27:27,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3769 states to 3769 states and 5602 transitions. [2023-12-02 15:27:27,032 INFO L78 Accepts]: Start accepts. Automaton has 3769 states and 5602 transitions. Word has length 246 [2023-12-02 15:27:27,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:27:27,033 INFO L495 AbstractCegarLoop]: Abstraction has 3769 states and 5602 transitions. [2023-12-02 15:27:27,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2023-12-02 15:27:27,033 INFO L276 IsEmpty]: Start isEmpty. Operand 3769 states and 5602 transitions. [2023-12-02 15:27:27,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-12-02 15:27:27,047 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:27:27,047 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:27:27,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-02 15:27:27,047 INFO L420 AbstractCegarLoop]: === Iteration 14 === 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)] === [2023-12-02 15:27:27,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:27:27,048 INFO L85 PathProgramCache]: Analyzing trace with hash 211581859, now seen corresponding path program 1 times [2023-12-02 15:27:27,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:27:27,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62886039] [2023-12-02 15:27:27,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:27:27,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:27:27,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:27:27,973 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-12-02 15:27:27,973 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:27:27,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62886039] [2023-12-02 15:27:27,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62886039] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:27:27,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024124470] [2023-12-02 15:27:27,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:27:27,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:27:27,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7c57b5-d06b-4f11-843f-265d5c57748b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:27:27,978 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7c57b5-d06b-4f11-843f-265d5c57748b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:27:27,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7c57b5-d06b-4f11-843f-265d5c57748b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 15:27:30,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:27:30,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 7946 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 15:27:30,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:27:31,814 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-12-02 15:27:31,815 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:27:31,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024124470] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:27:31,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 15:27:31,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-12-02 15:27:31,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113251563] [2023-12-02 15:27:31,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:27:31,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:27:31,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:27:31,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:27:31,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:27:31,818 INFO L87 Difference]: Start difference. First operand 3769 states and 5602 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2023-12-02 15:27:34,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:27:38,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:27:41,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:27:42,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:27:42,536 INFO L93 Difference]: Finished difference Result 7506 states and 11167 transitions. [2023-12-02 15:27:42,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:27:42,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 251 [2023-12-02 15:27:42,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:27:42,556 INFO L225 Difference]: With dead ends: 7506 [2023-12-02 15:27:42,556 INFO L226 Difference]: Without dead ends: 3762 [2023-12-02 15:27:42,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:27:42,576 INFO L413 NwaCegarLoop]: 5007 mSDtfsCounter, 5418 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5418 SdHoareTripleChecker+Valid, 5007 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:27:42,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5418 Valid, 5007 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 539 Invalid, 3 Unknown, 0 Unchecked, 10.2s Time] [2023-12-02 15:27:42,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3762 states. [2023-12-02 15:27:42,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3762 to 3762. [2023-12-02 15:27:42,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3762 states, 2200 states have (on average 1.3027272727272727) internal successors, (2866), 2348 states have internal predecessors, (2866), 1360 states have call successors, (1360), 200 states have call predecessors, (1360), 200 states have return successors, (1360), 1298 states have call predecessors, (1360), 1360 states have call successors, (1360) [2023-12-02 15:27:42,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3762 states to 3762 states and 5586 transitions. [2023-12-02 15:27:42,977 INFO L78 Accepts]: Start accepts. Automaton has 3762 states and 5586 transitions. Word has length 251 [2023-12-02 15:27:42,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:27:42,978 INFO L495 AbstractCegarLoop]: Abstraction has 3762 states and 5586 transitions. [2023-12-02 15:27:42,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2023-12-02 15:27:42,978 INFO L276 IsEmpty]: Start isEmpty. Operand 3762 states and 5586 transitions. [2023-12-02 15:27:42,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2023-12-02 15:27:42,991 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:27:42,991 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:27:43,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7c57b5-d06b-4f11-843f-265d5c57748b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 15:27:43,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7c57b5-d06b-4f11-843f-265d5c57748b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:27:43,192 INFO L420 AbstractCegarLoop]: === Iteration 15 === 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)] === [2023-12-02 15:27:43,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:27:43,193 INFO L85 PathProgramCache]: Analyzing trace with hash -713687302, now seen corresponding path program 1 times [2023-12-02 15:27:43,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:27:43,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778199658] [2023-12-02 15:27:43,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:27:43,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:27:43,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:27:44,198 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked. [2023-12-02 15:27:44,199 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:27:44,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778199658] [2023-12-02 15:27:44,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778199658] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:27:44,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349696040] [2023-12-02 15:27:44,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:27:44,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:27:44,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7c57b5-d06b-4f11-843f-265d5c57748b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:27:44,201 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7c57b5-d06b-4f11-843f-265d5c57748b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:27:44,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b7c57b5-d06b-4f11-843f-265d5c57748b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 15:27:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:27:46,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 8561 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:27:46,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:27:46,657 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 231 proven. 1 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2023-12-02 15:27:46,657 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:27:47,017 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked. [2023-12-02 15:27:47,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349696040] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:27:47,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1752772331] [2023-12-02 15:27:47,048 INFO L159 IcfgInterpreter]: Started Sifa with 209 locations of interest [2023-12-02 15:27:47,048 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:27:47,053 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:27:47,057 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:27:47,058 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs