./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_14897796-6325-46cf-97fa-13523b89781f/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14897796-6325-46cf-97fa-13523b89781f/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14897796-6325-46cf-97fa-13523b89781f/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14897796-6325-46cf-97fa-13523b89781f/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14897796-6325-46cf-97fa-13523b89781f/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14897796-6325-46cf-97fa-13523b89781f/bin/utaipan-verify-NcY6lQBIFX --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 d291badf6e321259e0b1b1625d2ed48867e61016cda7885a720272c3e12df877 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:49:12,937 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:49:13,055 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14897796-6325-46cf-97fa-13523b89781f/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:49:13,061 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:49:13,062 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:49:13,099 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:49:13,100 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:49:13,101 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:49:13,102 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:49:13,107 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:49:13,108 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:49:13,108 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:49:13,109 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:49:13,110 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:49:13,111 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:49:13,111 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:49:13,112 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:49:13,112 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:49:13,113 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:49:13,113 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:49:13,114 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:49:13,115 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:49:13,116 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:49:13,116 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:49:13,117 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:49:13,117 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:49:13,118 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:49:13,118 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:49:13,119 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:49:13,119 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:49:13,121 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:49:13,121 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:49:13,121 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:49:13,121 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:49:13,122 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:49:13,122 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:49:13,122 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:49:13,123 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:49:13,123 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:49:13,123 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:49:13,124 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:49:13,124 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:49:13,124 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_14897796-6325-46cf-97fa-13523b89781f/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14897796-6325-46cf-97fa-13523b89781f/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d291badf6e321259e0b1b1625d2ed48867e61016cda7885a720272c3e12df877 [2023-11-12 00:49:13,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:49:13,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:49:13,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:49:13,416 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:49:13,417 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:49:13,418 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14897796-6325-46cf-97fa-13523b89781f/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i [2023-11-12 00:49:16,539 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:49:17,373 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:49:17,374 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14897796-6325-46cf-97fa-13523b89781f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i [2023-11-12 00:49:17,459 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14897796-6325-46cf-97fa-13523b89781f/bin/utaipan-verify-NcY6lQBIFX/data/86226ec29/18b30444e6b8447d9ad01731e452d09b/FLAG319dddc62 [2023-11-12 00:49:17,475 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14897796-6325-46cf-97fa-13523b89781f/bin/utaipan-verify-NcY6lQBIFX/data/86226ec29/18b30444e6b8447d9ad01731e452d09b [2023-11-12 00:49:17,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:49:17,482 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:49:17,485 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:49:17,486 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:49:17,491 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:49:17,492 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:49:17" (1/1) ... [2023-11-12 00:49:17,493 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44ad3fd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:17, skipping insertion in model container [2023-11-12 00:49:17,494 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:49:17" (1/1) ... [2023-11-12 00:49:17,707 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:49:21,818 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_14897796-6325-46cf-97fa-13523b89781f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[462737,462750] [2023-11-12 00:49:21,823 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_14897796-6325-46cf-97fa-13523b89781f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[462906,462919] [2023-11-12 00:49:21,824 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_14897796-6325-46cf-97fa-13523b89781f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463073,463086] [2023-11-12 00:49:21,825 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_14897796-6325-46cf-97fa-13523b89781f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463241,463254] [2023-11-12 00:49:21,839 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:49:21,865 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:49:21,994 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"); [7210] [2023-11-12 00:49:21,996 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)); [7217] [2023-11-12 00:49:21,997 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [7224] [2023-11-12 00:49:22,000 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/f860c18/linux-kernel-locking-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [7321-7322] [2023-11-12 00:49:22,000 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"); [7327-7329] [2023-11-12 00:49:22,003 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; addl %1,%0": "+m" (v->counter): "ir" (i)); [7369] [2023-11-12 00:49:22,003 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; incl %0": "+m" (v->counter)); [7376] [2023-11-12 00:49:22,004 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; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [7404-7405] [2023-11-12 00:49:22,004 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; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [7408-7409] [2023-11-12 00:49:22,005 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; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [7412-7413] [2023-11-12 00:49:22,005 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; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [7416-7417] [2023-11-12 00:49:22,006 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [7466] [2023-11-12 00:49:22,007 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [7469] [2023-11-12 00:49:22,007 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [7472] [2023-11-12 00:49:22,008 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [7475] [2023-11-12 00:49:22,008 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (__preempt_count)); [7512] [2023-11-12 00:49:22,009 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (__preempt_count)); [7515] [2023-11-12 00:49:22,009 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%P0": "+m" (__preempt_count): "qi" (val)); [7517] [2023-11-12 00:49:22,010 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (__preempt_count)); [7522] [2023-11-12 00:49:22,010 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (__preempt_count)); [7525] [2023-11-12 00:49:22,011 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%P0": "+m" (__preempt_count): "ri" (val)); [7527] [2023-11-12 00:49:22,011 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (__preempt_count)); [7532] [2023-11-12 00:49:22,011 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (__preempt_count)); [7535] [2023-11-12 00:49:22,012 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%P0": "+m" (__preempt_count): "ri" (val)); [7537] [2023-11-12 00:49:22,012 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (__preempt_count)); [7542] [2023-11-12 00:49:22,013 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (__preempt_count)); [7545] [2023-11-12 00:49:22,013 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%P0": "+m" (__preempt_count): "re" (val)); [7547] [2023-11-12 00:49:22,014 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (__preempt_count)); [7585] [2023-11-12 00:49:22,015 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (__preempt_count)); [7588] [2023-11-12 00:49:22,015 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%P0": "+m" (__preempt_count): "qi" (- val)); [7590] [2023-11-12 00:49:22,015 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (__preempt_count)); [7595] [2023-11-12 00:49:22,016 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (__preempt_count)); [7598] [2023-11-12 00:49:22,016 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%P0": "+m" (__preempt_count): "ri" (- val)); [7600] [2023-11-12 00:49:22,017 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (__preempt_count)); [7605] [2023-11-12 00:49:22,017 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (__preempt_count)); [7608] [2023-11-12 00:49:22,018 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%P0": "+m" (__preempt_count): "ri" (- val)); [7610] [2023-11-12 00:49:22,018 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (__preempt_count)); [7615] [2023-11-12 00:49:22,018 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (__preempt_count)); [7618] [2023-11-12 00:49:22,019 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%P0": "+m" (__preempt_count): "re" (- val)); [7620] [2023-11-12 00:49:22,019 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [7636] [2023-11-12 00:49:22,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7762] [2023-11-12 00:49:22,023 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7771] [2023-11-12 00:49:22,032 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8045] [2023-11-12 00:49:22,040 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 *)"fs/nfs/nfs4filelayout.c"), "i" (84), "i" (12UL)); [8355-8356] [2023-11-12 00:49:22,270 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [12441-12442] [2023-11-12 00:49:22,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [12800] [2023-11-12 00:49:22,373 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [13954] [2023-11-12 00:49:22,374 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [13956] [2023-11-12 00:49:22,375 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [13993] [2023-11-12 00:49:22,418 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_14897796-6325-46cf-97fa-13523b89781f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[462737,462750] [2023-11-12 00:49:22,419 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_14897796-6325-46cf-97fa-13523b89781f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[462906,462919] [2023-11-12 00:49:22,420 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_14897796-6325-46cf-97fa-13523b89781f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463073,463086] [2023-11-12 00:49:22,420 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_14897796-6325-46cf-97fa-13523b89781f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463241,463254] [2023-11-12 00:49:22,428 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:49:22,644 WARN L672 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:49:22,645 WARN L672 CHandler]: The function strrchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:49:22,646 WARN L672 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:49:22,646 WARN L672 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:49:22,654 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:49:22,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:22 WrapperNode [2023-11-12 00:49:22,656 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:49:22,658 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:49:22,658 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:49:22,658 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:49:22,668 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:22" (1/1) ... [2023-11-12 00:49:22,795 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:22" (1/1) ... [2023-11-12 00:49:23,041 INFO L138 Inliner]: procedures = 522, calls = 2082, calls flagged for inlining = 218, calls inlined = 177, statements flattened = 5755 [2023-11-12 00:49:23,042 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:49:23,045 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:49:23,045 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:49:23,045 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:49:23,056 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:22" (1/1) ... [2023-11-12 00:49:23,056 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:22" (1/1) ... [2023-11-12 00:49:23,093 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:22" (1/1) ... [2023-11-12 00:49:23,094 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:22" (1/1) ... [2023-11-12 00:49:23,240 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:22" (1/1) ... [2023-11-12 00:49:23,269 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:22" (1/1) ... [2023-11-12 00:49:23,324 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:22" (1/1) ... [2023-11-12 00:49:23,354 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:22" (1/1) ... [2023-11-12 00:49:23,397 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:49:23,399 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:49:23,399 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:49:23,399 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:49:23,400 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:22" (1/1) ... [2023-11-12 00:49:23,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:49:23,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14897796-6325-46cf-97fa-13523b89781f/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:49:23,433 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14897796-6325-46cf-97fa-13523b89781f/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:49:23,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14897796-6325-46cf-97fa-13523b89781f/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:49:23,526 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_get_ds_info [2023-11-12 00:49:23,526 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_get_ds_info [2023-11-12 00:49:23,526 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-12 00:49:23,526 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_commit_prepare [2023-11-12 00:49:23,526 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_commit_prepare [2023-11-12 00:49:23,526 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_prepare_ds [2023-11-12 00:49:23,526 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_prepare_ds [2023-11-12 00:49:23,527 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_reset_write [2023-11-12 00:49:23,527 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_reset_write [2023-11-12 00:49:23,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 00:49:23,527 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 00:49:23,527 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2023-11-12 00:49:23,527 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2023-11-12 00:49:23,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:49:23,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:49:23,527 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2023-11-12 00:49:23,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2023-11-12 00:49:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-12 00:49:23,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-12 00:49:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_init_commit [2023-11-12 00:49:23,528 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_init_commit [2023-11-12 00:49:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_init_decode_pages [2023-11-12 00:49:23,528 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_init_decode_pages [2023-11-12 00:49:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-12 00:49:23,528 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-12 00:49:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_free_lseg [2023-11-12 00:49:23,528 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_free_lseg [2023-11-12 00:49:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure NFS_SERVER [2023-11-12 00:49:23,529 INFO L138 BoogieDeclarations]: Found implementation of procedure NFS_SERVER [2023-11-12 00:49:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_select_ds_fh [2023-11-12 00:49:23,529 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_select_ds_fh [2023-11-12 00:49:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2023-11-12 00:49:23,529 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2023-11-12 00:49:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure FILELAYOUT_LSEG [2023-11-12 00:49:23,529 INFO L138 BoogieDeclarations]: Found implementation of procedure FILELAYOUT_LSEG [2023-11-12 00:49:23,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-12 00:49:23,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-12 00:49:23,538 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_pg_init_read [2023-11-12 00:49:23,538 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_pg_init_read [2023-11-12 00:49:23,538 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-12 00:49:23,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 00:49:23,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 00:49:23,539 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_calc_j_index [2023-11-12 00:49:23,539 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_calc_j_index [2023-11-12 00:49:23,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:49:23,539 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_count_stats [2023-11-12 00:49:23,539 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_count_stats [2023-11-12 00:49:23,540 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-12 00:49:23,540 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-12 00:49:23,540 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_get_lseg [2023-11-12 00:49:23,540 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_get_lseg [2023-11-12 00:49:23,541 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-12 00:49:23,541 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-12 00:49:23,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 00:49:23,542 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_pageio_reset_read_mds [2023-11-12 00:49:23,542 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_pageio_reset_read_mds [2023-11-12 00:49:23,542 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_recover_commit_reqs [2023-11-12 00:49:23,542 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_recover_commit_reqs [2023-11-12 00:49:23,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:49:23,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-12 00:49:23,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-12 00:49:23,545 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_pg_test [2023-11-12 00:49:23,545 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_pg_test [2023-11-12 00:49:23,545 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_pg_init_write [2023-11-12 00:49:23,545 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_pg_init_write [2023-11-12 00:49:23,546 INFO L130 BoogieDeclarations]: Found specification of procedure transfer_commit_list [2023-11-12 00:49:23,546 INFO L138 BoogieDeclarations]: Found implementation of procedure transfer_commit_list [2023-11-12 00:49:23,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:49:23,546 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_commit_release [2023-11-12 00:49:23,546 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_commit_release [2023-11-12 00:49:23,546 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_free_layout_hdr [2023-11-12 00:49:23,547 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_free_layout_hdr [2023-11-12 00:49:23,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 00:49:23,547 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 00:49:23,547 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_find_or_create_ds_client [2023-11-12 00:49:23,548 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_find_or_create_ds_client [2023-11-12 00:49:23,548 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-12 00:49:23,548 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-12 00:49:23,549 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64_rem [2023-11-12 00:49:23,549 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64_rem [2023-11-12 00:49:23,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-12 00:49:23,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-12 00:49:23,550 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_free_deveiceid_node [2023-11-12 00:49:23,550 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_free_deveiceid_node [2023-11-12 00:49:23,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:49:23,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-12 00:49:23,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-12 00:49:23,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-12 00:49:23,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-12 00:49:23,551 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_request_remove_commit_list [2023-11-12 00:49:23,551 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_request_remove_commit_list [2023-11-12 00:49:23,552 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_commit_done [2023-11-12 00:49:23,552 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_commit_done [2023-11-12 00:49:23,553 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-11-12 00:49:23,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-11-12 00:49:23,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:49:23,553 INFO L130 BoogieDeclarations]: Found specification of procedure FILELAYOUT_FROM_HDR [2023-11-12 00:49:23,553 INFO L138 BoogieDeclarations]: Found implementation of procedure FILELAYOUT_FROM_HDR [2023-11-12 00:49:23,553 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_inline_decode [2023-11-12 00:49:23,554 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_inline_decode [2023-11-12 00:49:23,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-12 00:49:23,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-12 00:49:23,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:49:23,554 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_alloc_layout_hdr [2023-11-12 00:49:23,555 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_alloc_layout_hdr [2023-11-12 00:49:23,555 INFO L130 BoogieDeclarations]: Found specification of procedure req_offset [2023-11-12 00:49:23,555 INFO L138 BoogieDeclarations]: Found implementation of procedure req_offset [2023-11-12 00:49:23,555 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:49:23,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 00:49:23,555 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_mark_request_commit [2023-11-12 00:49:23,555 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_mark_request_commit [2023-11-12 00:49:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_80___0 [2023-11-12 00:49:23,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_80___0 [2023-11-12 00:49:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-11-12 00:49:23,556 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-11-12 00:49:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-12 00:49:23,556 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-12 00:49:23,557 INFO L130 BoogieDeclarations]: Found specification of procedure _filelayout_free_lseg [2023-11-12 00:49:23,557 INFO L138 BoogieDeclarations]: Found implementation of procedure _filelayout_free_lseg [2023-11-12 00:49:23,557 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_alloc_lseg [2023-11-12 00:49:23,557 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_alloc_lseg [2023-11-12 00:49:23,557 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-12 00:49:23,557 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-12 00:49:23,558 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_set_rw_stateid [2023-11-12 00:49:23,558 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_set_rw_stateid [2023-11-12 00:49:23,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:49:23,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:49:23,558 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-12 00:49:23,558 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-12 00:49:23,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 00:49:23,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:49:23,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 00:49:23,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 00:49:23,559 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_commit_count_stats [2023-11-12 00:49:23,559 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_commit_count_stats [2023-11-12 00:49:23,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-12 00:49:23,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-12 00:49:23,560 INFO L130 BoogieDeclarations]: Found specification of procedure FILELAYOUT_DEVID_NODE [2023-11-12 00:49:23,560 INFO L138 BoogieDeclarations]: Found implementation of procedure FILELAYOUT_DEVID_NODE [2023-11-12 00:49:23,560 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_resend_writes [2023-11-12 00:49:23,560 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_resend_writes [2023-11-12 00:49:23,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2023-11-12 00:49:23,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2023-11-12 00:49:23,561 INFO L130 BoogieDeclarations]: Found specification of procedure nfs41_sequence_done [2023-11-12 00:49:23,561 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs41_sequence_done [2023-11-12 00:49:23,561 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_free_deviceid [2023-11-12 00:49:23,561 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_free_deviceid [2023-11-12 00:49:23,561 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_retry_commit [2023-11-12 00:49:23,561 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_retry_commit [2023-11-12 00:49:23,562 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_scan_commit_lists [2023-11-12 00:49:23,562 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_scan_commit_lists [2023-11-12 00:49:23,562 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_fenceme [2023-11-12 00:49:23,562 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_fenceme [2023-11-12 00:49:23,562 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_commit_pagelist [2023-11-12 00:49:23,562 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_commit_pagelist [2023-11-12 00:49:23,562 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_put_lseg [2023-11-12 00:49:23,563 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_put_lseg [2023-11-12 00:49:23,563 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2023-11-12 00:49:23,563 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2023-11-12 00:49:23,563 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2023-11-12 00:49:23,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2023-11-12 00:49:23,563 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_count_stats [2023-11-12 00:49:23,564 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_count_stats [2023-11-12 00:49:23,564 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_reset_read [2023-11-12 00:49:23,564 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_reset_read [2023-11-12 00:49:23,564 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_exit [2023-11-12 00:49:23,564 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_exit [2023-11-12 00:49:23,564 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-12 00:49:23,564 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-12 00:49:23,565 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2023-11-12 00:49:23,565 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2023-11-12 00:49:23,565 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_count_iostats [2023-11-12 00:49:23,565 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_count_iostats [2023-11-12 00:49:23,565 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_clear_request_commit [2023-11-12 00:49:23,565 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_clear_request_commit [2023-11-12 00:49:23,566 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-11-12 00:49:23,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-11-12 00:49:23,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:49:23,566 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-12 00:49:23,566 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-12 00:49:23,566 INFO L130 BoogieDeclarations]: Found specification of procedure NFS_FILEID [2023-11-12 00:49:23,567 INFO L138 BoogieDeclarations]: Found implementation of procedure NFS_FILEID [2023-11-12 00:49:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_calc_ds_index [2023-11-12 00:49:23,567 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_calc_ds_index [2023-11-12 00:49:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_get_dserver_offset [2023-11-12 00:49:23,567 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_get_dserver_offset [2023-11-12 00:49:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:49:23,567 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_put_deviceid [2023-11-12 00:49:23,568 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_put_deviceid [2023-11-12 00:49:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2023-11-12 00:49:23,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2023-11-12 00:49:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:49:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_prepare [2023-11-12 00:49:23,568 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_prepare [2023-11-12 00:49:23,568 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 00:49:23,569 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 00:49:23,569 INFO L130 BoogieDeclarations]: Found specification of procedure NFS_I [2023-11-12 00:49:23,569 INFO L138 BoogieDeclarations]: Found implementation of procedure NFS_I [2023-11-12 00:49:23,569 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-12 00:49:23,569 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-12 00:49:23,569 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-12 00:49:23,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-12 00:49:23,570 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_put_client [2023-11-12 00:49:23,570 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_put_client [2023-11-12 00:49:23,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-12 00:49:23,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-12 00:49:23,570 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_call_done [2023-11-12 00:49:23,570 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_call_done [2023-11-12 00:49:23,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-12 00:49:23,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-12 00:49:23,571 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_release [2023-11-12 00:49:23,571 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_release [2023-11-12 00:49:23,571 INFO L130 BoogieDeclarations]: Found specification of procedure nfs41_setup_sequence [2023-11-12 00:49:23,571 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs41_setup_sequence [2023-11-12 00:49:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-12 00:49:23,572 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-12 00:49:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_commitdata_alloc [2023-11-12 00:49:23,572 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_commitdata_alloc [2023-11-12 00:49:23,572 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_set_scratch_buffer [2023-11-12 00:49:23,572 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_set_scratch_buffer [2023-11-12 00:49:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_79 [2023-11-12 00:49:23,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_79 [2023-11-12 00:49:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_pagelist [2023-11-12 00:49:23,573 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_pagelist [2023-11-12 00:49:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-12 00:49:23,573 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-12 00:49:23,573 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 00:49:23,574 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 00:49:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_call_done [2023-11-12 00:49:23,574 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_call_done [2023-11-12 00:49:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:49:23,574 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_free_fh_array [2023-11-12 00:49:23,574 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_free_fh_array [2023-11-12 00:49:23,575 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_pagelist [2023-11-12 00:49:23,575 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_pagelist [2023-11-12 00:49:23,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 00:49:23,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 00:49:23,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_80 [2023-11-12 00:49:23,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_80 [2023-11-12 00:49:23,575 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_initiate_commit [2023-11-12 00:49:23,576 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_initiate_commit [2023-11-12 00:49:23,576 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2023-11-12 00:49:23,576 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-12 00:49:23,576 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-12 00:49:23,576 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-11-12 00:49:23,576 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-11-12 00:49:23,577 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_print_deviceid [2023-11-12 00:49:23,577 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_print_deviceid [2023-11-12 00:49:23,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-12 00:49:23,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-12 00:49:23,577 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_update_layout [2023-11-12 00:49:23,577 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_update_layout [2023-11-12 00:49:23,577 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-12 00:49:23,578 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-12 00:49:23,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_nfs4filelayout_exit_5_2 [2023-11-12 00:49:23,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_nfs4filelayout_exit_5_2 [2023-11-12 00:49:23,578 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_release [2023-11-12 00:49:23,578 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_release [2023-11-12 00:49:23,578 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_mark_deviceid_unavailable [2023-11-12 00:49:23,579 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_mark_deviceid_unavailable [2023-11-12 00:49:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_test_devid_unavailable [2023-11-12 00:49:23,579 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_test_devid_unavailable [2023-11-12 00:49:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:49:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-12 00:49:23,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-12 00:49:23,579 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_prepare [2023-11-12 00:49:23,580 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_prepare [2023-11-12 00:49:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-12 00:49:23,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-12 00:49:23,580 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_reset_to_mds [2023-11-12 00:49:23,580 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_reset_to_mds [2023-11-12 00:49:24,551 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:49:24,556 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:49:25,361 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 00:49:29,139 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-12 00:49:29,333 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:49:31,567 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:49:31,568 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 00:49:31,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:49:31 BoogieIcfgContainer [2023-11-12 00:49:31,574 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:49:31,577 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:49:31,578 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:49:31,582 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:49:31,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:49:17" (1/3) ... [2023-11-12 00:49:31,583 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea58ecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:49:31, skipping insertion in model container [2023-11-12 00:49:31,583 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:49:22" (2/3) ... [2023-11-12 00:49:31,584 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea58ecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:49:31, skipping insertion in model container [2023-11-12 00:49:31,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:49:31" (3/3) ... [2023-11-12 00:49:31,585 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i [2023-11-12 00:49:31,610 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:49:31,610 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-12 00:49:31,715 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:49:31,722 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;@477d36bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:49:31,722 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-12 00:49:31,734 INFO L276 IsEmpty]: Start isEmpty. Operand has 1919 states, 1139 states have (on average 1.3107989464442493) internal successors, (1493), 1190 states have internal predecessors, (1493), 651 states have call successors, (651), 126 states have call predecessors, (651), 125 states have return successors, (645), 622 states have call predecessors, (645), 645 states have call successors, (645) [2023-11-12 00:49:31,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2023-11-12 00:49:31,773 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:31,774 INFO L195 NwaCegarLoop]: trace histogram [35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:49:31,775 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-12 00:49:31,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:31,780 INFO L85 PathProgramCache]: Analyzing trace with hash 2034410773, now seen corresponding path program 1 times [2023-11-12 00:49:31,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:49:31,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276675045] [2023-11-12 00:49:31,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:31,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:49:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:33,037 INFO L134 CoverageAnalysis]: Checked inductivity of 4556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4556 trivial. 0 not checked. [2023-11-12 00:49:33,038 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:49:33,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276675045] [2023-11-12 00:49:33,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276675045] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:33,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:33,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:49:33,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919653818] [2023-11-12 00:49:33,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:33,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:49:33,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:49:33,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:49:33,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:33,103 INFO L87 Difference]: Start difference. First operand has 1919 states, 1139 states have (on average 1.3107989464442493) internal successors, (1493), 1190 states have internal predecessors, (1493), 651 states have call successors, (651), 126 states have call predecessors, (651), 125 states have return successors, (645), 622 states have call predecessors, (645), 645 states have call successors, (645) Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2023-11-12 00:49:35,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:35,496 INFO L93 Difference]: Finished difference Result 5544 states and 8193 transitions. [2023-11-12 00:49:35,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:49:35,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 360 [2023-11-12 00:49:35,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:35,589 INFO L225 Difference]: With dead ends: 5544 [2023-11-12 00:49:35,589 INFO L226 Difference]: Without dead ends: 3684 [2023-11-12 00:49:35,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:35,625 INFO L413 NwaCegarLoop]: 2469 mSDtfsCounter, 2585 mSDsluCounter, 2433 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2585 SdHoareTripleChecker+Valid, 4902 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:35,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2585 Valid, 4902 Invalid, 672 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-12 00:49:35,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3684 states. [2023-11-12 00:49:36,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3684 to 3678. [2023-11-12 00:49:36,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3678 states, 2207 states have (on average 1.3081105573176257) internal successors, (2887), 2307 states have internal predecessors, (2887), 1222 states have call successors, (1222), 246 states have call predecessors, (1222), 245 states have return successors, (1218), 1172 states have call predecessors, (1218), 1218 states have call successors, (1218) [2023-11-12 00:49:36,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3678 states to 3678 states and 5327 transitions. [2023-11-12 00:49:36,266 INFO L78 Accepts]: Start accepts. Automaton has 3678 states and 5327 transitions. Word has length 360 [2023-11-12 00:49:36,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:36,273 INFO L495 AbstractCegarLoop]: Abstraction has 3678 states and 5327 transitions. [2023-11-12 00:49:36,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2023-11-12 00:49:36,274 INFO L276 IsEmpty]: Start isEmpty. Operand 3678 states and 5327 transitions. [2023-11-12 00:49:36,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2023-11-12 00:49:36,297 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:36,298 INFO L195 NwaCegarLoop]: trace histogram [35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:49:36,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:49:36,300 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-12 00:49:36,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:36,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1811364037, now seen corresponding path program 1 times [2023-11-12 00:49:36,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:49:36,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76651492] [2023-11-12 00:49:36,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:36,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:49:36,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:37,693 INFO L134 CoverageAnalysis]: Checked inductivity of 4556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4556 trivial. 0 not checked. [2023-11-12 00:49:37,694 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:49:37,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76651492] [2023-11-12 00:49:37,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76651492] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:37,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:37,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 00:49:37,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228268292] [2023-11-12 00:49:37,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:37,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 00:49:37,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:49:37,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 00:49:37,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:49:37,700 INFO L87 Difference]: Start difference. First operand 3678 states and 5327 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-11-12 00:49:49,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:49,656 INFO L93 Difference]: Finished difference Result 10869 states and 15714 transitions. [2023-11-12 00:49:49,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:49:49,657 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 365 [2023-11-12 00:49:49,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:49,749 INFO L225 Difference]: With dead ends: 10869 [2023-11-12 00:49:49,749 INFO L226 Difference]: Without dead ends: 7260 [2023-11-12 00:49:49,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-12 00:49:49,782 INFO L413 NwaCegarLoop]: 2440 mSDtfsCounter, 11267 mSDsluCounter, 5204 mSDsCounter, 0 mSdLazyCounter, 2790 mSolverCounterSat, 4976 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11352 SdHoareTripleChecker+Valid, 7644 SdHoareTripleChecker+Invalid, 7766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4976 IncrementalHoareTripleChecker+Valid, 2790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:49,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11352 Valid, 7644 Invalid, 7766 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4976 Valid, 2790 Invalid, 0 Unknown, 0 Unchecked, 10.9s Time] [2023-11-12 00:49:49,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7260 states. [2023-11-12 00:49:50,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7260 to 7190. [2023-11-12 00:49:50,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7190 states, 4333 states have (on average 1.3099469189937687) internal successors, (5676), 4537 states have internal predecessors, (5676), 2356 states have call successors, (2356), 498 states have call predecessors, (2356), 497 states have return successors, (2352), 2250 states have call predecessors, (2352), 2352 states have call successors, (2352) [2023-11-12 00:49:50,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7190 states to 7190 states and 10384 transitions. [2023-11-12 00:49:50,559 INFO L78 Accepts]: Start accepts. Automaton has 7190 states and 10384 transitions. Word has length 365 [2023-11-12 00:49:50,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:50,564 INFO L495 AbstractCegarLoop]: Abstraction has 7190 states and 10384 transitions. [2023-11-12 00:49:50,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-11-12 00:49:50,565 INFO L276 IsEmpty]: Start isEmpty. Operand 7190 states and 10384 transitions. [2023-11-12 00:49:50,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2023-11-12 00:49:50,578 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:50,578 INFO L195 NwaCegarLoop]: trace histogram [35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:49:50,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:49:50,579 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-12 00:49:50,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:50,580 INFO L85 PathProgramCache]: Analyzing trace with hash 437465155, now seen corresponding path program 1 times [2023-11-12 00:49:50,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:49:50,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710200199] [2023-11-12 00:49:50,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:50,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:49:50,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:51,127 INFO L134 CoverageAnalysis]: Checked inductivity of 4556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4556 trivial. 0 not checked. [2023-11-12 00:49:51,127 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:49:51,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710200199] [2023-11-12 00:49:51,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710200199] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:51,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:51,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:49:51,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780217449] [2023-11-12 00:49:51,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:51,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:49:51,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:49:51,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:49:51,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:51,132 INFO L87 Difference]: Start difference. First operand 7190 states and 10384 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2023-11-12 00:49:53,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:53,320 INFO L93 Difference]: Finished difference Result 19563 states and 28228 transitions. [2023-11-12 00:49:53,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:49:53,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 369 [2023-11-12 00:49:53,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:49:53,431 INFO L225 Difference]: With dead ends: 19563 [2023-11-12 00:49:53,431 INFO L226 Difference]: Without dead ends: 12442 [2023-11-12 00:49:53,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:53,475 INFO L413 NwaCegarLoop]: 2470 mSDtfsCounter, 2591 mSDsluCounter, 2419 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2591 SdHoareTripleChecker+Valid, 4889 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-12 00:49:53,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2591 Valid, 4889 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-12 00:49:53,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12442 states. [2023-11-12 00:49:54,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12442 to 12408. [2023-11-12 00:49:54,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12408 states, 7496 states have (on average 1.3098986125933831) internal successors, (9819), 7856 states have internal predecessors, (9819), 4033 states have call successors, (4033), 876 states have call predecessors, (4033), 875 states have return successors, (4029), 3843 states have call predecessors, (4029), 4029 states have call successors, (4029) [2023-11-12 00:49:54,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12408 states to 12408 states and 17881 transitions. [2023-11-12 00:49:54,483 INFO L78 Accepts]: Start accepts. Automaton has 12408 states and 17881 transitions. Word has length 369 [2023-11-12 00:49:54,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:49:54,485 INFO L495 AbstractCegarLoop]: Abstraction has 12408 states and 17881 transitions. [2023-11-12 00:49:54,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2023-11-12 00:49:54,487 INFO L276 IsEmpty]: Start isEmpty. Operand 12408 states and 17881 transitions. [2023-11-12 00:49:54,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2023-11-12 00:49:54,498 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:49:54,498 INFO L195 NwaCegarLoop]: trace histogram [35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:49:54,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:49:54,499 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2023-11-12 00:49:54,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:49:54,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1773959878, now seen corresponding path program 1 times [2023-11-12 00:49:54,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:49:54,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275461194] [2023-11-12 00:49:54,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:49:54,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:49:54,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:49:54,841 INFO L134 CoverageAnalysis]: Checked inductivity of 4556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4556 trivial. 0 not checked. [2023-11-12 00:49:54,841 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:49:54,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275461194] [2023-11-12 00:49:54,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275461194] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:49:54,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:49:54,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:49:54,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436622396] [2023-11-12 00:49:54,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:49:54,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:49:54,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:49:54,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:49:54,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:49:54,845 INFO L87 Difference]: Start difference. First operand 12408 states and 17881 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-11-12 00:49:57,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:49:57,383 INFO L93 Difference]: Finished difference Result 34995 states and 50350 transitions. [2023-11-12 00:49:57,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:49:57,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 366 [2023-11-12 00:49:57,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted.