./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-autofs4-autofs4.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2fc1bed-dd23-4214-a37f-84fce72b7be5/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2fc1bed-dd23-4214-a37f-84fce72b7be5/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2fc1bed-dd23-4214-a37f-84fce72b7be5/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2fc1bed-dd23-4214-a37f-84fce72b7be5/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2fc1bed-dd23-4214-a37f-84fce72b7be5/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2fc1bed-dd23-4214-a37f-84fce72b7be5/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 621b5d8c1f324511a324a10029dcaab65fe2a5895550fdbdb080d704851197f9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:36:01,423 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:36:01,503 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2fc1bed-dd23-4214-a37f-84fce72b7be5/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 05:36:01,510 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:36:01,510 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:36:01,561 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:36:01,562 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:36:01,562 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:36:01,563 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:36:01,563 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:36:01,563 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:36:01,563 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:36:01,563 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:36:01,564 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:36:01,564 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:36:01,564 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:36:01,564 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:36:01,564 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:36:01,565 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:36:01,565 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:36:01,565 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:36:01,565 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:36:01,566 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:36:01,566 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:36:01,566 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:36:01,566 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:36:01,566 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:36:01,567 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:36:01,567 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:36:01,567 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:36:01,567 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:36:01,567 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:36:01,567 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:36:01,567 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:36:01,567 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:36:01,567 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:36:01,568 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:36:01,568 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:36:01,568 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:36:01,568 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:36:01,568 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:36:01,568 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:36:01,569 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:36:01,569 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:36:01,569 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2fc1bed-dd23-4214-a37f-84fce72b7be5/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 621b5d8c1f324511a324a10029dcaab65fe2a5895550fdbdb080d704851197f9 [2024-11-14 05:36:01,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:36:01,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:36:01,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:36:01,987 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:36:01,987 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:36:01,989 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2fc1bed-dd23-4214-a37f-84fce72b7be5/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i Unable to find full path for "g++" [2024-11-14 05:36:04,258 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:36:05,392 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:36:05,393 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2fc1bed-dd23-4214-a37f-84fce72b7be5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i [2024-11-14 05:36:05,504 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2fc1bed-dd23-4214-a37f-84fce72b7be5/bin/utaipan-verify-sOmjnqqW8E/data/418ba8e0e/aa252c0af9ce4328895cec007c6f78f1/FLAG3043fe176 [2024-11-14 05:36:05,536 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2fc1bed-dd23-4214-a37f-84fce72b7be5/bin/utaipan-verify-sOmjnqqW8E/data/418ba8e0e/aa252c0af9ce4328895cec007c6f78f1 [2024-11-14 05:36:05,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:36:05,542 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:36:05,546 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:36:05,546 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:36:05,552 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:36:05,553 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:36:05" (1/1) ... [2024-11-14 05:36:05,558 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64ecf794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:05, skipping insertion in model container [2024-11-14 05:36:05,558 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:36:05" (1/1) ... [2024-11-14 05:36:05,762 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:36:09,996 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2fc1bed-dd23-4214-a37f-84fce72b7be5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402143,402156] [2024-11-14 05:36:10,000 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2fc1bed-dd23-4214-a37f-84fce72b7be5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402312,402325] [2024-11-14 05:36:10,001 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2fc1bed-dd23-4214-a37f-84fce72b7be5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402479,402492] [2024-11-14 05:36:10,002 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2fc1bed-dd23-4214-a37f-84fce72b7be5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402647,402660] [2024-11-14 05:36:10,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:36:10,081 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:36:10,291 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [6019] [2024-11-14 05:36:10,293 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6022] [2024-11-14 05:36:10,295 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6025] [2024-11-14 05:36:10,295 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6028] [2024-11-14 05:36:10,387 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)); [7015] [2024-11-14 05:36:10,389 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; decl %0": "+m" (v->counter)); [7022] [2024-11-14 05:36:10,389 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [7029] [2024-11-14 05:36:10,483 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/autofs4/root.c"), "i" (535), "i" (12UL)); [8347-8348] [2024-11-14 05:36:10,510 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/autofs4/root.c"), "i" (718), "i" (12UL)); [8654-8655] [2024-11-14 05:36:10,514 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" (p), "i" (4UL)); [8707-8708] [2024-11-14 05:36:10,515 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8738] [2024-11-14 05:36:10,516 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8741] [2024-11-14 05:36:10,516 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8744] [2024-11-14 05:36:10,516 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8747] [2024-11-14 05:36:10,518 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8750] [2024-11-14 05:36:10,519 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" (p), "i" (8UL)); [8780-8781] [2024-11-14 05:36:10,520 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8811] [2024-11-14 05:36:10,520 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8814] [2024-11-14 05:36:10,521 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8817] [2024-11-14 05:36:10,521 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8820] [2024-11-14 05:36:10,521 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8823] [2024-11-14 05:36:10,523 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8870] [2024-11-14 05:36:10,524 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8873] [2024-11-14 05:36:10,524 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8876] [2024-11-14 05:36:10,524 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8879] [2024-11-14 05:36:10,525 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8882] [2024-11-14 05:36:10,526 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8918] [2024-11-14 05:36:10,526 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8921] [2024-11-14 05:36:10,526 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8924] [2024-11-14 05:36:10,527 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8927] [2024-11-14 05:36:10,527 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8930] [2024-11-14 05:36:10,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8996] [2024-11-14 05:36:10,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8999] [2024-11-14 05:36:10,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [9002] [2024-11-14 05:36:10,531 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [9005] [2024-11-14 05:36:10,531 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [9008] [2024-11-14 05:36:10,562 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)); [9626-9627] [2024-11-14 05:36:10,563 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"); [9632-9634] [2024-11-14 05:36:10,564 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/f860c18/linux-kernel-locking-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (809), "i" (12UL)); [9659-9660] [2024-11-14 05:36:10,565 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (45UL), [paravirt_opptr] "i" (& pv_irq_ops.restore_fl.func), [paravirt_clobber] "i" (1), "D" (f): "memory", "cc"); [9665-9667] [2024-11-14 05:36:10,566 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/f860c18/linux-kernel-locking-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (814), "i" (12UL)); [9691-9692] [2024-11-14 05:36:10,566 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (46UL), [paravirt_opptr] "i" (& pv_irq_ops.irq_disable.func), [paravirt_clobber] "i" (1): "memory", "cc"); [9697-9699] [2024-11-14 05:36:10,567 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; nop": : : "memory"); [9725] [2024-11-14 05:36:10,568 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; incq %0": "=m" (v->counter): "m" (v->counter)); [9741] [2024-11-14 05:36:10,570 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& kernel_stack)); [9794] [2024-11-14 05:36:10,570 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [9797] [2024-11-14 05:36:10,570 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [9800] [2024-11-14 05:36:10,570 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [9803] [2024-11-14 05:36:10,572 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (__preempt_count)); [9842] [2024-11-14 05:36:10,573 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (__preempt_count)); [9845] [2024-11-14 05:36:10,574 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%P0": "+m" (__preempt_count): "qi" (val)); [9847] [2024-11-14 05:36:10,575 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (__preempt_count)); [9852] [2024-11-14 05:36:10,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (__preempt_count)); [9855] [2024-11-14 05:36:10,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%P0": "+m" (__preempt_count): "ri" (val)); [9857] [2024-11-14 05:36:10,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (__preempt_count)); [9862] [2024-11-14 05:36:10,577 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (__preempt_count)); [9865] [2024-11-14 05:36:10,577 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%P0": "+m" (__preempt_count): "ri" (val)); [9867] [2024-11-14 05:36:10,577 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (__preempt_count)); [9872] [2024-11-14 05:36:10,577 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (__preempt_count)); [9875] [2024-11-14 05:36:10,577 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%P0": "+m" (__preempt_count): "re" (val)); [9877] [2024-11-14 05:36:10,578 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (__preempt_count)); [9915] [2024-11-14 05:36:10,579 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (__preempt_count)); [9918] [2024-11-14 05:36:10,579 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%P0": "+m" (__preempt_count): "qi" (- val)); [9920] [2024-11-14 05:36:10,581 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (__preempt_count)); [9925] [2024-11-14 05:36:10,581 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (__preempt_count)); [9928] [2024-11-14 05:36:10,581 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%P0": "+m" (__preempt_count): "ri" (- val)); [9930] [2024-11-14 05:36:10,582 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (__preempt_count)); [9935] [2024-11-14 05:36:10,582 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (__preempt_count)); [9938] [2024-11-14 05:36:10,582 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%P0": "+m" (__preempt_count): "ri" (- val)); [9940] [2024-11-14 05:36:10,583 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (__preempt_count)); [9945] [2024-11-14 05:36:10,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (__preempt_count)); [9948] [2024-11-14 05:36:10,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%P0": "+m" (__preempt_count): "re" (- val)); [9950] [2024-11-14 05:36:10,587 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [10041] [2024-11-14 05:36:10,589 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [10072] [2024-11-14 05:36:10,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [10107] [2024-11-14 05:36:10,592 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [10116] [2024-11-14 05:36:10,772 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" (arg), "i" (4UL)); [12416-12417] [2024-11-14 05:36:10,842 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2fc1bed-dd23-4214-a37f-84fce72b7be5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402143,402156] [2024-11-14 05:36:10,843 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2fc1bed-dd23-4214-a37f-84fce72b7be5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402312,402325] [2024-11-14 05:36:10,844 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2fc1bed-dd23-4214-a37f-84fce72b7be5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402479,402492] [2024-11-14 05:36:10,845 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2fc1bed-dd23-4214-a37f-84fce72b7be5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i[402647,402660] [2024-11-14 05:36:10,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:36:11,108 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:36:11,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:11 WrapperNode [2024-11-14 05:36:11,109 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:36:11,110 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:36:11,111 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:36:11,111 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:36:11,120 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:11" (1/1) ... [2024-11-14 05:36:11,242 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:11" (1/1) ... [2024-11-14 05:36:11,706 INFO L138 Inliner]: procedures = 553, calls = 3910, calls flagged for inlining = 272, calls inlined = 248, statements flattened = 9768 [2024-11-14 05:36:11,706 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:36:11,708 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:36:11,708 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:36:11,708 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:36:11,717 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:11" (1/1) ... [2024-11-14 05:36:11,719 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:11" (1/1) ... [2024-11-14 05:36:11,773 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:11" (1/1) ... [2024-11-14 05:36:11,773 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:11" (1/1) ... [2024-11-14 05:36:11,996 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:11" (1/1) ... [2024-11-14 05:36:12,050 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:11" (1/1) ... [2024-11-14 05:36:12,114 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:11" (1/1) ... [2024-11-14 05:36:12,152 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:11" (1/1) ... [2024-11-14 05:36:12,232 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:36:12,235 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:36:12,235 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:36:12,235 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:36:12,237 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:11" (1/1) ... [2024-11-14 05:36:12,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:36:12,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2fc1bed-dd23-4214-a37f-84fce72b7be5/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:36:12,283 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2fc1bed-dd23-4214-a37f-84fce72b7be5/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:36:12,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2fc1bed-dd23-4214-a37f-84fce72b7be5/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:36:12,323 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_evict_inode [2024-11-14 05:36:12,323 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_evict_inode [2024-11-14 05:36:12,323 INFO L130 BoogieDeclarations]: Found specification of procedure dput [2024-11-14 05:36:12,324 INFO L138 BoogieDeclarations]: Found implementation of procedure dput [2024-11-14 05:36:12,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-14 05:36:12,324 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-14 05:36:12,324 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_unlink [2024-11-14 05:36:12,325 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_unlink [2024-11-14 05:36:12,325 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_get_inode [2024-11-14 05:36:12,325 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_get_inode [2024-11-14 05:36:12,325 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2024-11-14 05:36:12,325 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2024-11-14 05:36:12,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-14 05:36:12,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-14 05:36:12,325 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_lseek [2024-11-14 05:36:12,325 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_lseek [2024-11-14 05:36:12,326 INFO L130 BoogieDeclarations]: Found specification of procedure do_expire_wait [2024-11-14 05:36:12,326 INFO L138 BoogieDeclarations]: Found implementation of procedure do_expire_wait [2024-11-14 05:36:12,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-14 05:36:12,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-14 05:36:12,328 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2024-11-14 05:36:12,328 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2024-11-14 05:36:12,328 INFO L130 BoogieDeclarations]: Found specification of procedure dget [2024-11-14 05:36:12,328 INFO L138 BoogieDeclarations]: Found implementation of procedure dget [2024-11-14 05:36:12,328 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2024-11-14 05:36:12,329 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2024-11-14 05:36:12,329 INFO L130 BoogieDeclarations]: Found specification of procedure current_kernel_time [2024-11-14 05:36:12,329 INFO L138 BoogieDeclarations]: Found implementation of procedure current_kernel_time [2024-11-14 05:36:12,329 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_expire_indirect [2024-11-14 05:36:12,329 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_expire_indirect [2024-11-14 05:36:12,329 INFO L130 BoogieDeclarations]: Found specification of procedure new_encode_dev [2024-11-14 05:36:12,329 INFO L138 BoogieDeclarations]: Found implementation of procedure new_encode_dev [2024-11-14 05:36:12,329 INFO L130 BoogieDeclarations]: Found specification of procedure managed_dentry_clear_managed [2024-11-14 05:36:12,329 INFO L138 BoogieDeclarations]: Found implementation of procedure managed_dentry_clear_managed [2024-11-14 05:36:12,329 INFO L130 BoogieDeclarations]: Found specification of procedure from_kgid_munged [2024-11-14 05:36:12,329 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kgid_munged [2024-11-14 05:36:12,329 INFO L130 BoogieDeclarations]: Found specification of procedure follow_down_one [2024-11-14 05:36:12,329 INFO L138 BoogieDeclarations]: Found implementation of procedure follow_down_one [2024-11-14 05:36:12,329 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_show_options [2024-11-14 05:36:12,329 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_show_options [2024-11-14 05:36:12,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_48 [2024-11-14 05:36:12,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_48 [2024-11-14 05:36:12,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_57 [2024-11-14 05:36:12,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_57 [2024-11-14 05:36:12,330 INFO L130 BoogieDeclarations]: Found specification of procedure __autofs4_add_expiring [2024-11-14 05:36:12,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __autofs4_add_expiring [2024-11-14 05:36:12,330 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_expire_wait [2024-11-14 05:36:12,330 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_expire_wait [2024-11-14 05:36:12,330 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_dev_ioctl [2024-11-14 05:36:12,330 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_dev_ioctl [2024-11-14 05:36:12,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-11-14 05:36:12,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-11-14 05:36:12,331 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2024-11-14 05:36:12,332 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2024-11-14 05:36:12,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-14 05:36:12,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-14 05:36:12,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 05:36:12,332 INFO L130 BoogieDeclarations]: Found specification of procedure d_count [2024-11-14 05:36:12,332 INFO L138 BoogieDeclarations]: Found implementation of procedure d_count [2024-11-14 05:36:12,332 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2024-11-14 05:36:12,334 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2024-11-14 05:36:12,334 INFO L130 BoogieDeclarations]: Found specification of procedure from_kuid_munged [2024-11-14 05:36:12,334 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kuid_munged [2024-11-14 05:36:12,334 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2024-11-14 05:36:12,334 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2024-11-14 05:36:12,334 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-14 05:36:12,334 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-14 05:36:12,334 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2024-11-14 05:36:12,335 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2024-11-14 05:36:12,335 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_oz_mode [2024-11-14 05:36:12,335 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_oz_mode [2024-11-14 05:36:12,335 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_do_expire_multi [2024-11-14 05:36:12,335 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_do_expire_multi [2024-11-14 05:36:12,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_NOT_ARG_SIGN [2024-11-14 05:36:12,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_NOT_ARG_SIGN [2024-11-14 05:36:12,335 INFO L130 BoogieDeclarations]: Found specification of procedure __task_pid_nr_ns [2024-11-14 05:36:12,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __task_pid_nr_ns [2024-11-14 05:36:12,335 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-14 05:36:12,335 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-14 05:36:12,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_54 [2024-11-14 05:36:12,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_54 [2024-11-14 05:36:12,335 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_sbi [2024-11-14 05:36:12,335 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_sbi [2024-11-14 05:36:12,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-14 05:36:12,335 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-11-14 05:36:12,335 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-11-14 05:36:12,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_siglock_of_sighand_struct [2024-11-14 05:36:12,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_siglock_of_sighand_struct [2024-11-14 05:36:12,336 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_new_ino [2024-11-14 05:36:12,336 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_new_ino [2024-11-14 05:36:12,336 INFO L130 BoogieDeclarations]: Found specification of procedure simple_empty [2024-11-14 05:36:12,336 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_empty [2024-11-14 05:36:12,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-14 05:36:12,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-11-14 05:36:12,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-11-14 05:36:12,336 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_can_expire [2024-11-14 05:36:12,336 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_can_expire [2024-11-14 05:36:12,336 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dentry_ino [2024-11-14 05:36:12,336 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dentry_ino [2024-11-14 05:36:12,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 05:36:12,336 INFO L130 BoogieDeclarations]: Found specification of procedure fget [2024-11-14 05:36:12,336 INFO L138 BoogieDeclarations]: Found implementation of procedure fget [2024-11-14 05:36:12,336 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_open [2024-11-14 05:36:12,336 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_open [2024-11-14 05:36:12,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-14 05:36:12,336 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-14 05:36:12,336 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_rmdir [2024-11-14 05:36:12,337 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_rmdir [2024-11-14 05:36:12,337 INFO L130 BoogieDeclarations]: Found specification of procedure may_umount [2024-11-14 05:36:12,337 INFO L138 BoogieDeclarations]: Found implementation of procedure may_umount [2024-11-14 05:36:12,337 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_dev_ioctl_exit [2024-11-14 05:36:12,337 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_dev_ioctl_exit [2024-11-14 05:36:12,337 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2024-11-14 05:36:12,337 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2024-11-14 05:36:12,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2024-11-14 05:36:12,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2024-11-14 05:36:12,340 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_open [2024-11-14 05:36:12,340 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_open [2024-11-14 05:36:12,340 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2024-11-14 05:36:12,341 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2024-11-14 05:36:12,342 INFO L130 BoogieDeclarations]: Found specification of procedure clear_nlink [2024-11-14 05:36:12,342 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_nlink [2024-11-14 05:36:12,342 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_type_trigger [2024-11-14 05:36:12,342 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_type_trigger [2024-11-14 05:36:12,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-14 05:36:12,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-14 05:36:12,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 05:36:12,343 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2024-11-14 05:36:12,343 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2024-11-14 05:36:12,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2024-11-14 05:36:12,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2024-11-14 05:36:12,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2024-11-14 05:36:12,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2024-11-14 05:36:12,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2024-11-14 05:36:12,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2024-11-14 05:36:12,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2024-11-14 05:36:12,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2024-11-14 05:36:12,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2024-11-14 05:36:12,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2024-11-14 05:36:12,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:36:12,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-14 05:36:12,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-14 05:36:12,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 05:36:12,345 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2024-11-14 05:36:12,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __bad_percpu_size [2024-11-14 05:36:12,345 INFO L130 BoogieDeclarations]: Found specification of procedure simple_positive [2024-11-14 05:36:12,345 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_positive [2024-11-14 05:36:12,345 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2024-11-14 05:36:12,345 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2024-11-14 05:36:12,345 INFO L130 BoogieDeclarations]: Found specification of procedure path_get [2024-11-14 05:36:12,345 INFO L138 BoogieDeclarations]: Found implementation of procedure path_get [2024-11-14 05:36:12,346 INFO L130 BoogieDeclarations]: Found specification of procedure dget_dlock [2024-11-14 05:36:12,346 INFO L138 BoogieDeclarations]: Found implementation of procedure dget_dlock [2024-11-14 05:36:12,346 INFO L130 BoogieDeclarations]: Found specification of procedure d_lookup [2024-11-14 05:36:12,346 INFO L138 BoogieDeclarations]: Found implementation of procedure d_lookup [2024-11-14 05:36:12,346 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2024-11-14 05:36:12,346 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2024-11-14 05:36:12,346 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2024-11-14 05:36:12,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2024-11-14 05:36:12,346 INFO L130 BoogieDeclarations]: Found specification of procedure recalc_sigpending [2024-11-14 05:36:12,346 INFO L138 BoogieDeclarations]: Found implementation of procedure recalc_sigpending [2024-11-14 05:36:12,346 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2024-11-14 05:36:12,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2024-11-14 05:36:12,346 INFO L130 BoogieDeclarations]: Found specification of procedure d_drop [2024-11-14 05:36:12,346 INFO L138 BoogieDeclarations]: Found implementation of procedure d_drop [2024-11-14 05:36:12,346 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_mount [2024-11-14 05:36:12,346 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_mount [2024-11-14 05:36:12,346 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_type_indirect [2024-11-14 05:36:12,346 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_type_indirect [2024-11-14 05:36:12,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:36:12,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:36:12,347 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_mount_wait [2024-11-14 05:36:12,347 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_mount_wait [2024-11-14 05:36:12,347 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-14 05:36:12,347 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-14 05:36:12,347 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_ioctl [2024-11-14 05:36:12,347 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_ioctl [2024-11-14 05:36:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2024-11-14 05:36:12,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2024-11-14 05:36:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure complete_all [2024-11-14 05:36:12,350 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_all [2024-11-14 05:36:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2024-11-14 05:36:12,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2024-11-14 05:36:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-14 05:36:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_wait_release [2024-11-14 05:36:12,350 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_wait_release [2024-11-14 05:36:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-14 05:36:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-14 05:36:12,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-14 05:36:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_ioctl_unlocked [2024-11-14 05:36:12,350 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_ioctl_unlocked [2024-11-14 05:36:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-14 05:36:12,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-14 05:36:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2024-11-14 05:36:12,350 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2024-11-14 05:36:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2024-11-14 05:36:12,351 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2024-11-14 05:36:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2024-11-14 05:36:12,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2024-11-14 05:36:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_compat_ioctl [2024-11-14 05:36:12,351 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_compat_ioctl [2024-11-14 05:36:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure read_seqretry [2024-11-14 05:36:12,351 INFO L138 BoogieDeclarations]: Found implementation of procedure read_seqretry [2024-11-14 05:36:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2024-11-14 05:36:12,351 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2024-11-14 05:36:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2024-11-14 05:36:12,351 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2024-11-14 05:36:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_readdir [2024-11-14 05:36:12,351 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_readdir [2024-11-14 05:36:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure d_instantiate [2024-11-14 05:36:12,351 INFO L138 BoogieDeclarations]: Found implementation of procedure d_instantiate [2024-11-14 05:36:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2024-11-14 05:36:12,351 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2024-11-14 05:36:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-14 05:36:12,352 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-14 05:36:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure may_umount_tree [2024-11-14 05:36:12,352 INFO L138 BoogieDeclarations]: Found implementation of procedure may_umount_tree [2024-11-14 05:36:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2024-11-14 05:36:12,352 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2024-11-14 05:36:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure simple_statfs [2024-11-14 05:36:12,352 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_statfs [2024-11-14 05:36:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-14 05:36:12,352 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-14 05:36:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure get_task_pid [2024-11-14 05:36:12,352 INFO L138 BoogieDeclarations]: Found implementation of procedure get_task_pid [2024-11-14 05:36:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure path_put [2024-11-14 05:36:12,352 INFO L138 BoogieDeclarations]: Found implementation of procedure path_put [2024-11-14 05:36:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_mount_busy [2024-11-14 05:36:12,352 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_mount_busy [2024-11-14 05:36:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure d_unhashed [2024-11-14 05:36:12,352 INFO L138 BoogieDeclarations]: Found implementation of procedure d_unhashed [2024-11-14 05:36:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2024-11-14 05:36:12,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2024-11-14 05:36:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_kill_sb [2024-11-14 05:36:12,353 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_kill_sb [2024-11-14 05:36:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 05:36:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2024-11-14 05:36:12,353 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2024-11-14 05:36:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure generic_read_dir [2024-11-14 05:36:12,353 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_read_dir [2024-11-14 05:36:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2024-11-14 05:36:12,353 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2024-11-14 05:36:12,358 INFO L130 BoogieDeclarations]: Found specification of procedure managed_dentry_set_managed [2024-11-14 05:36:12,358 INFO L138 BoogieDeclarations]: Found implementation of procedure managed_dentry_set_managed [2024-11-14 05:36:12,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 05:36:12,358 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2024-11-14 05:36:12,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2024-11-14 05:36:12,359 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2024-11-14 05:36:12,359 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2024-11-14 05:36:12,359 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2024-11-14 05:36:12,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2024-11-14 05:36:12,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-14 05:36:12,359 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-11-14 05:36:12,359 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-11-14 05:36:12,359 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-14 05:36:12,359 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-14 05:36:12,359 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-14 05:36:12,359 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-14 05:36:12,359 INFO L130 BoogieDeclarations]: Found specification of procedure find_autofs_mount [2024-11-14 05:36:12,359 INFO L138 BoogieDeclarations]: Found implementation of procedure find_autofs_mount [2024-11-14 05:36:12,359 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2024-11-14 05:36:12,359 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2024-11-14 05:36:12,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-11-14 05:36:12,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-11-14 05:36:12,359 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_close [2024-11-14 05:36:12,359 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_close [2024-11-14 05:36:12,359 INFO L130 BoogieDeclarations]: Found specification of procedure ns_of_pid [2024-11-14 05:36:12,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_of_pid [2024-11-14 05:36:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-14 05:36:12,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-14 05:36:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_55 [2024-11-14 05:36:12,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_55 [2024-11-14 05:36:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2024-11-14 05:36:12,360 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2024-11-14 05:36:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_clean_ino [2024-11-14 05:36:12,360 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_clean_ino [2024-11-14 05:36:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_49 [2024-11-14 05:36:12,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_49 [2024-11-14 05:36:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_77 [2024-11-14 05:36:12,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_77 [2024-11-14 05:36:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure kern_path_mountpoint [2024-11-14 05:36:12,360 INFO L138 BoogieDeclarations]: Found implementation of procedure kern_path_mountpoint [2024-11-14 05:36:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure get_next_positive_dentry [2024-11-14 05:36:12,360 INFO L138 BoogieDeclarations]: Found implementation of procedure get_next_positive_dentry [2024-11-14 05:36:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-14 05:36:12,360 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-14 05:36:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure __managed_dentry_set_managed [2024-11-14 05:36:12,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __managed_dentry_set_managed [2024-11-14 05:36:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_wait [2024-11-14 05:36:12,361 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_wait [2024-11-14 05:36:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_find_wait [2024-11-14 05:36:12,361 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_find_wait [2024-11-14 05:36:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2024-11-14 05:36:12,361 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2024-11-14 05:36:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_exit_autofs4_fs_8_2 [2024-11-14 05:36:12,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_exit_autofs4_fs_8_2 [2024-11-14 05:36:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 05:36:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dentry_release [2024-11-14 05:36:12,361 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dentry_release [2024-11-14 05:36:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure task_pgrp_nr [2024-11-14 05:36:12,361 INFO L138 BoogieDeclarations]: Found implementation of procedure task_pgrp_nr [2024-11-14 05:36:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2024-11-14 05:36:12,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2024-11-14 05:36:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-14 05:36:12,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-14 05:36:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure uid_eq [2024-11-14 05:36:12,361 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_eq [2024-11-14 05:36:12,362 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_symlink [2024-11-14 05:36:12,362 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_symlink [2024-11-14 05:36:12,362 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2024-11-14 05:36:12,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2024-11-14 05:36:12,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_78 [2024-11-14 05:36:12,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_78 [2024-11-14 05:36:12,362 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2024-11-14 05:36:12,362 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2024-11-14 05:36:12,366 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2024-11-14 05:36:12,366 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2024-11-14 05:36:12,366 INFO L130 BoogieDeclarations]: Found specification of procedure d_mountpoint [2024-11-14 05:36:12,366 INFO L138 BoogieDeclarations]: Found implementation of procedure d_mountpoint [2024-11-14 05:36:12,366 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2024-11-14 05:36:12,366 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2024-11-14 05:36:12,367 INFO L130 BoogieDeclarations]: Found specification of procedure have_submounts [2024-11-14 05:36:12,367 INFO L138 BoogieDeclarations]: Found implementation of procedure have_submounts [2024-11-14 05:36:12,367 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2024-11-14 05:36:12,367 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2024-11-14 05:36:12,367 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2024-11-14 05:36:12,367 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2024-11-14 05:36:12,368 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2024-11-14 05:36:12,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2024-11-14 05:36:12,368 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2024-11-14 05:36:12,368 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2024-11-14 05:36:12,369 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_prepare_pipe [2024-11-14 05:36:12,369 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_prepare_pipe [2024-11-14 05:36:12,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-11-14 05:36:12,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-11-14 05:36:12,369 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_del_active [2024-11-14 05:36:12,369 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_del_active [2024-11-14 05:36:12,369 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-14 05:36:12,369 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-14 05:36:12,369 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-14 05:36:12,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-14 05:36:12,369 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2024-11-14 05:36:12,369 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2024-11-14 05:36:12,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:36:12,369 INFO L130 BoogieDeclarations]: Found specification of procedure d_add [2024-11-14 05:36:12,369 INFO L138 BoogieDeclarations]: Found implementation of procedure d_add [2024-11-14 05:36:12,369 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_catatonic_mode [2024-11-14 05:36:12,370 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_catatonic_mode [2024-11-14 05:36:12,370 INFO L130 BoogieDeclarations]: Found specification of procedure gid_eq [2024-11-14 05:36:12,370 INFO L138 BoogieDeclarations]: Found implementation of procedure gid_eq [2024-11-14 05:36:12,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-11-14 05:36:12,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-11-14 05:36:12,370 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2024-11-14 05:36:12,370 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2024-11-14 05:36:14,179 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:36:14,186 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:36:14,573 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-14 05:36:16,007 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint switch_break: call ULTIMATE.dealloc(~#descriptor~12#1.base, ~#descriptor~12#1.offset);havoc ~#descriptor~12#1.base, ~#descriptor~12#1.offset; [2024-11-14 05:36:33,208 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-11-14 05:36:36,473 INFO L? ?]: Removed 3695 outVars from TransFormulas that were not future-live. [2024-11-14 05:36:36,474 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:36:39,756 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:36:39,756 INFO L316 CfgBuilder]: Removed 12 assume(true) statements. [2024-11-14 05:36:39,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:36:39 BoogieIcfgContainer [2024-11-14 05:36:39,757 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:36:39,850 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:36:39,850 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:36:39,857 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:36:39,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:36:05" (1/3) ... [2024-11-14 05:36:39,860 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21fcbf4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:36:39, skipping insertion in model container [2024-11-14 05:36:39,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:11" (2/3) ... [2024-11-14 05:36:39,860 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21fcbf4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:36:39, skipping insertion in model container [2024-11-14 05:36:39,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:36:39" (3/3) ... [2024-11-14 05:36:39,862 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i [2024-11-14 05:36:39,884 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:36:39,889 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-autofs4-autofs4.cil.i that has 170 procedures, 2771 locations, 1 initial locations, 5 loop locations, and 4 error locations. [2024-11-14 05:36:40,079 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:36:40,101 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6de8badf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:36:40,102 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-14 05:36:40,119 INFO L276 IsEmpty]: Start isEmpty. Operand has 2769 states, 1627 states have (on average 1.3116164720344192) internal successors, (2134), 1682 states have internal predecessors, (2134), 970 states have call successors, (970), 169 states have call predecessors, (970), 168 states have return successors, (959), 953 states have call predecessors, (959), 959 states have call successors, (959) [2024-11-14 05:36:40,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-11-14 05:36:40,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:36:40,192 INFO L215 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:36:40,193 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-14 05:36:40,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:36:40,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1393334876, now seen corresponding path program 1 times [2024-11-14 05:36:40,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:36:40,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719897830] [2024-11-14 05:36:40,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:36:40,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:36:50,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:36:52,337 INFO L134 CoverageAnalysis]: Checked inductivity of 7656 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7656 trivial. 0 not checked. [2024-11-14 05:36:52,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:36:52,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719897830] [2024-11-14 05:36:52,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719897830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:36:52,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:36:52,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:36:52,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88617183] [2024-11-14 05:36:52,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:36:52,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:36:52,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:36:52,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:36:52,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:36:52,386 INFO L87 Difference]: Start difference. First operand has 2769 states, 1627 states have (on average 1.3116164720344192) internal successors, (2134), 1682 states have internal predecessors, (2134), 970 states have call successors, (970), 169 states have call predecessors, (970), 168 states have return successors, (959), 953 states have call predecessors, (959), 959 states have call successors, (959) Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2024-11-14 05:36:54,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:36:56,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:37:00,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:37:05,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:37:07,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:37:10,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:37:13,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:37:15,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:37:16,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:37:16,896 INFO L93 Difference]: Finished difference Result 8005 states and 12247 transitions. [2024-11-14 05:37:16,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:37:16,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 465 [2024-11-14 05:37:16,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:37:16,991 INFO L225 Difference]: With dead ends: 8005 [2024-11-14 05:37:16,992 INFO L226 Difference]: Without dead ends: 5309 [2024-11-14 05:37:17,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:37:17,043 INFO L432 NwaCegarLoop]: 3620 mSDtfsCounter, 3790 mSDsluCounter, 3551 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 11 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3790 SdHoareTripleChecker+Valid, 7171 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2024-11-14 05:37:17,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3790 Valid, 7171 Invalid, 849 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 830 Invalid, 8 Unknown, 0 Unchecked, 23.9s Time] [2024-11-14 05:37:17,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5309 states. [2024-11-14 05:37:17,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5309 to 5303. [2024-11-14 05:37:17,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 3142 states have (on average 1.2969446212603437) internal successors, (4075), 3237 states have internal predecessors, (4075), 1827 states have call successors, (1827), 331 states have call predecessors, (1827), 330 states have return successors, (1823), 1811 states have call predecessors, (1823), 1823 states have call successors, (1823) [2024-11-14 05:37:17,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 7725 transitions. [2024-11-14 05:37:17,860 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 7725 transitions. Word has length 465 [2024-11-14 05:37:17,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:37:17,873 INFO L471 AbstractCegarLoop]: Abstraction has 5303 states and 7725 transitions. [2024-11-14 05:37:17,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2024-11-14 05:37:17,876 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 7725 transitions. [2024-11-14 05:37:17,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2024-11-14 05:37:17,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:37:17,928 INFO L215 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:37:17,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:37:17,929 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-14 05:37:17,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:37:17,936 INFO L85 PathProgramCache]: Analyzing trace with hash -509800604, now seen corresponding path program 1 times [2024-11-14 05:37:17,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:37:17,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023054972] [2024-11-14 05:37:17,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:37:17,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:37:27,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:37:28,743 INFO L134 CoverageAnalysis]: Checked inductivity of 7656 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7656 trivial. 0 not checked. [2024-11-14 05:37:28,744 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:37:28,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023054972] [2024-11-14 05:37:28,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023054972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:37:28,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:37:28,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:37:28,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397689287] [2024-11-14 05:37:28,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:37:28,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:37:28,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:37:28,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:37:28,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:37:28,751 INFO L87 Difference]: Start difference. First operand 5303 states and 7725 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2024-11-14 05:37:30,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:37:33,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:37:40,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:37:42,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:37:44,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:37:49,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:37:51,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:37:52,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:37:52,707 INFO L93 Difference]: Finished difference Result 12434 states and 18036 transitions. [2024-11-14 05:37:52,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:37:52,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 481 [2024-11-14 05:37:52,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:37:52,781 INFO L225 Difference]: With dead ends: 12434 [2024-11-14 05:37:52,781 INFO L226 Difference]: Without dead ends: 7220 [2024-11-14 05:37:52,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:37:52,812 INFO L432 NwaCegarLoop]: 3593 mSDtfsCounter, 3260 mSDsluCounter, 3540 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 13 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3260 SdHoareTripleChecker+Valid, 7133 SdHoareTripleChecker+Invalid, 891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:37:52,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3260 Valid, 7133 Invalid, 891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 871 Invalid, 7 Unknown, 0 Unchecked, 23.5s Time] [2024-11-14 05:37:52,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7220 states. [2024-11-14 05:37:53,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7220 to 7196. [2024-11-14 05:37:53,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7196 states, 4253 states have (on average 1.288502233717376) internal successors, (5480), 4382 states have internal predecessors, (5480), 2458 states have call successors, (2458), 482 states have call predecessors, (2458), 481 states have return successors, (2458), 2435 states have call predecessors, (2458), 2454 states have call successors, (2458) [2024-11-14 05:37:53,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7196 states to 7196 states and 10396 transitions. [2024-11-14 05:37:53,448 INFO L78 Accepts]: Start accepts. Automaton has 7196 states and 10396 transitions. Word has length 481 [2024-11-14 05:37:53,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:37:53,450 INFO L471 AbstractCegarLoop]: Abstraction has 7196 states and 10396 transitions. [2024-11-14 05:37:53,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2024-11-14 05:37:53,451 INFO L276 IsEmpty]: Start isEmpty. Operand 7196 states and 10396 transitions. [2024-11-14 05:37:53,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2024-11-14 05:37:53,472 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:37:53,472 INFO L215 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:37:53,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:37:53,473 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-14 05:37:53,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:37:53,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1604953215, now seen corresponding path program 1 times [2024-11-14 05:37:53,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:37:53,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336340642] [2024-11-14 05:37:53,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:37:53,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:38:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:38:02,594 INFO L134 CoverageAnalysis]: Checked inductivity of 7656 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7656 trivial. 0 not checked. [2024-11-14 05:38:02,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:38:02,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336340642] [2024-11-14 05:38:02,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336340642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:38:02,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:38:02,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:38:02,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907997090] [2024-11-14 05:38:02,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:38:02,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:38:02,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:38:02,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:38:02,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:38:02,598 INFO L87 Difference]: Start difference. First operand 7196 states and 10396 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2024-11-14 05:38:04,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:38:06,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:38:12,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:38:15,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:38:17,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:38:19,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:38:23,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:38:25,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:38:26,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:38:26,617 INFO L93 Difference]: Finished difference Result 18502 states and 26651 transitions. [2024-11-14 05:38:26,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:38:26,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 480 [2024-11-14 05:38:26,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:38:26,721 INFO L225 Difference]: With dead ends: 18502 [2024-11-14 05:38:26,721 INFO L226 Difference]: Without dead ends: 11395 [2024-11-14 05:38:26,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:38:26,767 INFO L432 NwaCegarLoop]: 3595 mSDtfsCounter, 3485 mSDsluCounter, 3570 mSDsCounter, 0 mSdLazyCounter, 827 mSolverCounterSat, 7 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3485 SdHoareTripleChecker+Valid, 7165 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 827 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:38:26,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3485 Valid, 7165 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 827 Invalid, 8 Unknown, 0 Unchecked, 23.6s Time] [2024-11-14 05:38:26,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11395 states. [2024-11-14 05:38:27,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11395 to 11367. [2024-11-14 05:38:27,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11367 states, 6726 states have (on average 1.2867975022301517) internal successors, (8655), 6921 states have internal predecessors, (8655), 3841 states have call successors, (3841), 797 states have call predecessors, (3841), 796 states have return successors, (3845), 3806 states have call predecessors, (3845), 3837 states have call successors, (3845) [2024-11-14 05:38:27,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11367 states to 11367 states and 16341 transitions. [2024-11-14 05:38:27,582 INFO L78 Accepts]: Start accepts. Automaton has 11367 states and 16341 transitions. Word has length 480 [2024-11-14 05:38:27,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:38:27,584 INFO L471 AbstractCegarLoop]: Abstraction has 11367 states and 16341 transitions. [2024-11-14 05:38:27,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2024-11-14 05:38:27,586 INFO L276 IsEmpty]: Start isEmpty. Operand 11367 states and 16341 transitions. [2024-11-14 05:38:27,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2024-11-14 05:38:27,593 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:38:27,594 INFO L215 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:38:27,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 05:38:27,594 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-14 05:38:27,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:38:27,595 INFO L85 PathProgramCache]: Analyzing trace with hash -2125191327, now seen corresponding path program 1 times [2024-11-14 05:38:27,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:38:27,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097502216] [2024-11-14 05:38:27,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:38:27,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:38:36,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:38:36,996 INFO L134 CoverageAnalysis]: Checked inductivity of 7656 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7656 trivial. 0 not checked. [2024-11-14 05:38:36,996 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:38:36,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097502216] [2024-11-14 05:38:36,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097502216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:38:36,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:38:36,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:38:36,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291085073] [2024-11-14 05:38:36,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:38:36,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:38:36,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:38:36,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:38:36,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:38:36,999 INFO L87 Difference]: Start difference. First operand 11367 states and 16341 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2024-11-14 05:38:39,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:38:41,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:38:47,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:38:49,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:38:53,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:38:55,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:38:57,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:38:59,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:38:59,712 INFO L93 Difference]: Finished difference Result 31467 states and 45205 transitions. [2024-11-14 05:38:59,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:38:59,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 480 [2024-11-14 05:38:59,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:38:59,893 INFO L225 Difference]: With dead ends: 31467 [2024-11-14 05:38:59,894 INFO L226 Difference]: Without dead ends: 20189 [2024-11-14 05:38:59,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:38:59,962 INFO L432 NwaCegarLoop]: 3587 mSDtfsCounter, 3690 mSDsluCounter, 3539 mSDsCounter, 0 mSdLazyCounter, 866 mSolverCounterSat, 13 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3690 SdHoareTripleChecker+Valid, 7126 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 866 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:38:59,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3690 Valid, 7126 Invalid, 886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 866 Invalid, 7 Unknown, 0 Unchecked, 22.1s Time] [2024-11-14 05:38:59,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20189 states. [2024-11-14 05:39:01,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20189 to 20165. [2024-11-14 05:39:01,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20165 states, 11973 states have (on average 1.2859767810907876) internal successors, (15397), 12329 states have internal predecessors, (15397), 6747 states have call successors, (6747), 1442 states have call predecessors, (6747), 1441 states have return successors, (6775), 6680 states have call predecessors, (6775), 6743 states have call successors, (6775) [2024-11-14 05:39:01,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20165 states to 20165 states and 28919 transitions. [2024-11-14 05:39:01,464 INFO L78 Accepts]: Start accepts. Automaton has 20165 states and 28919 transitions. Word has length 480 [2024-11-14 05:39:01,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:39:01,466 INFO L471 AbstractCegarLoop]: Abstraction has 20165 states and 28919 transitions. [2024-11-14 05:39:01,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2024-11-14 05:39:01,466 INFO L276 IsEmpty]: Start isEmpty. Operand 20165 states and 28919 transitions. [2024-11-14 05:39:01,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2024-11-14 05:39:01,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:39:01,473 INFO L215 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:39:01,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 05:39:01,473 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-14 05:39:01,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:39:01,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1075981942, now seen corresponding path program 1 times [2024-11-14 05:39:01,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:39:01,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447745558] [2024-11-14 05:39:01,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:39:01,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:39:10,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:39:10,929 INFO L134 CoverageAnalysis]: Checked inductivity of 7660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7660 trivial. 0 not checked. [2024-11-14 05:39:10,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:39:10,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447745558] [2024-11-14 05:39:10,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447745558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:39:10,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:39:10,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:39:10,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621284458] [2024-11-14 05:39:10,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:39:10,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:39:10,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:39:10,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:39:10,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:39:10,932 INFO L87 Difference]: Start difference. First operand 20165 states and 28919 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2024-11-14 05:39:13,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:39:15,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:39:19,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:39:23,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:39:25,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:39:30,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:39:31,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:39:32,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:39:32,993 INFO L93 Difference]: Finished difference Result 55696 states and 79760 transitions. [2024-11-14 05:39:32,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:39:32,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) Word has length 484 [2024-11-14 05:39:32,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:39:33,292 INFO L225 Difference]: With dead ends: 55696 [2024-11-14 05:39:33,293 INFO L226 Difference]: Without dead ends: 35620 [2024-11-14 05:39:33,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:39:33,410 INFO L432 NwaCegarLoop]: 3700 mSDtfsCounter, 3525 mSDsluCounter, 3563 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 7 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3525 SdHoareTripleChecker+Valid, 7263 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:39:33,410 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3525 Valid, 7263 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 854 Invalid, 6 Unknown, 0 Unchecked, 21.1s Time] [2024-11-14 05:39:33,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35620 states. [2024-11-14 05:39:35,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35620 to 35580. [2024-11-14 05:39:35,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35580 states, 21160 states have (on average 1.2848298676748582) internal successors, (27187), 21773 states have internal predecessors, (27187), 11819 states have call successors, (11819), 2598 states have call predecessors, (11819), 2597 states have return successors, (11879), 11672 states have call predecessors, (11879), 11815 states have call successors, (11879) [2024-11-14 05:39:36,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35580 states to 35580 states and 50885 transitions. [2024-11-14 05:39:36,158 INFO L78 Accepts]: Start accepts. Automaton has 35580 states and 50885 transitions. Word has length 484 [2024-11-14 05:39:36,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:39:36,160 INFO L471 AbstractCegarLoop]: Abstraction has 35580 states and 50885 transitions. [2024-11-14 05:39:36,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2024-11-14 05:39:36,160 INFO L276 IsEmpty]: Start isEmpty. Operand 35580 states and 50885 transitions. [2024-11-14 05:39:36,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2024-11-14 05:39:36,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:39:36,172 INFO L215 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:39:36,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 05:39:36,172 INFO L396 AbstractCegarLoop]: === Iteration 6 === 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)] === [2024-11-14 05:39:36,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:39:36,173 INFO L85 PathProgramCache]: Analyzing trace with hash 880141612, now seen corresponding path program 1 times [2024-11-14 05:39:36,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:39:36,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055585551] [2024-11-14 05:39:36,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:39:36,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:39:45,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:39:46,946 INFO L134 CoverageAnalysis]: Checked inductivity of 7658 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7658 trivial. 0 not checked. [2024-11-14 05:39:46,947 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:39:46,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055585551] [2024-11-14 05:39:46,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055585551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:39:46,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:39:46,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:39:46,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135856760] [2024-11-14 05:39:46,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:39:46,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:39:46,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:39:46,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:39:46,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:39:46,951 INFO L87 Difference]: Start difference. First operand 35580 states and 50885 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2024-11-14 05:39:49,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:39:51,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:39:54,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:01,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:03,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:05,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:08,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:13,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:40:13,015 INFO L93 Difference]: Finished difference Result 98889 states and 141343 transitions. [2024-11-14 05:40:13,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:40:13,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 507 [2024-11-14 05:40:13,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:40:13,902 INFO L225 Difference]: With dead ends: 98889 [2024-11-14 05:40:13,902 INFO L226 Difference]: Without dead ends: 63398 [2024-11-14 05:40:14,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:40:14,047 INFO L432 NwaCegarLoop]: 4094 mSDtfsCounter, 3709 mSDsluCounter, 3543 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 13 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3709 SdHoareTripleChecker+Valid, 7637 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:40:14,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3709 Valid, 7637 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 899 Invalid, 7 Unknown, 0 Unchecked, 23.0s Time] [2024-11-14 05:40:14,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63398 states. [2024-11-14 05:40:17,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63398 to 63326. [2024-11-14 05:40:17,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63326 states, 37805 states have (on average 1.2836661817219945) internal successors, (48529), 38952 states have internal predecessors, (48529), 20822 states have call successors, (20822), 4708 states have call predecessors, (20822), 4695 states have return successors, (20994), 20531 states have call predecessors, (20994), 20818 states have call successors, (20994) [2024-11-14 05:40:18,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63326 states to 63326 states and 90345 transitions. [2024-11-14 05:40:18,548 INFO L78 Accepts]: Start accepts. Automaton has 63326 states and 90345 transitions. Word has length 507 [2024-11-14 05:40:18,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:40:18,549 INFO L471 AbstractCegarLoop]: Abstraction has 63326 states and 90345 transitions. [2024-11-14 05:40:18,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2024-11-14 05:40:18,550 INFO L276 IsEmpty]: Start isEmpty. Operand 63326 states and 90345 transitions. [2024-11-14 05:40:18,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2024-11-14 05:40:18,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:40:18,564 INFO L215 NwaCegarLoop]: trace histogram [48, 44, 44, 44, 44, 44, 44, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:40:18,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 05:40:18,564 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-14 05:40:18,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:40:18,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1708211630, now seen corresponding path program 1 times [2024-11-14 05:40:18,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:40:18,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367837333] [2024-11-14 05:40:18,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:40:18,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:40:28,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:40:30,293 INFO L134 CoverageAnalysis]: Checked inductivity of 7963 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7963 trivial. 0 not checked. [2024-11-14 05:40:30,293 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:40:30,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367837333] [2024-11-14 05:40:30,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367837333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:40:30,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:40:30,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:40:30,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100634870] [2024-11-14 05:40:30,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:40:30,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:40:30,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:40:30,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:40:30,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:40:30,297 INFO L87 Difference]: Start difference. First operand 63326 states and 90345 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2024-11-14 05:40:32,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:34,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:36,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:42,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:44,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:46,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:54,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:56,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:58,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:41:02,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:41:02,155 INFO L93 Difference]: Finished difference Result 63332 states and 90350 transitions. [2024-11-14 05:41:02,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:41:02,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 515 [2024-11-14 05:41:02,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:41:02,679 INFO L225 Difference]: With dead ends: 63332 [2024-11-14 05:41:02,679 INFO L226 Difference]: Without dead ends: 63330 [2024-11-14 05:41:02,741 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:41:02,742 INFO L432 NwaCegarLoop]: 3583 mSDtfsCounter, 3873 mSDsluCounter, 7156 mSDsCounter, 0 mSdLazyCounter, 1224 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3874 SdHoareTripleChecker+Valid, 10739 SdHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1224 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:41:02,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3874 Valid, 10739 Invalid, 1233 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1224 Invalid, 9 Unknown, 0 Unchecked, 29.8s Time] [2024-11-14 05:41:02,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63330 states. [2024-11-14 05:41:07,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63330 to 63330. [2024-11-14 05:41:07,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63330 states, 37808 states have (on average 1.2836436732966567) internal successors, (48532), 38955 states have internal predecessors, (48532), 20822 states have call successors, (20822), 4709 states have call predecessors, (20822), 4696 states have return successors, (20994), 20531 states have call predecessors, (20994), 20818 states have call successors, (20994) [2024-11-14 05:41:08,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63330 states to 63330 states and 90348 transitions. [2024-11-14 05:41:08,134 INFO L78 Accepts]: Start accepts. Automaton has 63330 states and 90348 transitions. Word has length 515 [2024-11-14 05:41:08,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:41:08,136 INFO L471 AbstractCegarLoop]: Abstraction has 63330 states and 90348 transitions. [2024-11-14 05:41:08,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2024-11-14 05:41:08,136 INFO L276 IsEmpty]: Start isEmpty. Operand 63330 states and 90348 transitions. [2024-11-14 05:41:08,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2024-11-14 05:41:08,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:41:08,144 INFO L215 NwaCegarLoop]: trace histogram [48, 44, 44, 44, 44, 44, 44, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:41:08,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 05:41:08,145 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-14 05:41:08,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:41:08,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1968155888, now seen corresponding path program 1 times [2024-11-14 05:41:08,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:41:08,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910574029] [2024-11-14 05:41:08,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:41:08,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:41:17,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:41:20,022 INFO L134 CoverageAnalysis]: Checked inductivity of 7965 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7963 trivial. 0 not checked. [2024-11-14 05:41:20,023 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:41:20,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910574029] [2024-11-14 05:41:20,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910574029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:41:20,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:41:20,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:41:20,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509915693] [2024-11-14 05:41:20,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:41:20,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:41:20,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:41:20,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:41:20,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:41:20,036 INFO L87 Difference]: Start difference. First operand 63330 states and 90348 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2024-11-14 05:41:22,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:41:24,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:41:26,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:41:32,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:41:34,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:41:36,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:41:43,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:41:45,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:41:50,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:41:50,892 INFO L93 Difference]: Finished difference Result 66086 states and 92685 transitions. [2024-11-14 05:41:50,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:41:50,893 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 520 [2024-11-14 05:41:50,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:41:51,594 INFO L225 Difference]: With dead ends: 66086 [2024-11-14 05:41:51,595 INFO L226 Difference]: Without dead ends: 66084 [2024-11-14 05:41:51,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:41:51,631 INFO L432 NwaCegarLoop]: 3584 mSDtfsCounter, 3361 mSDsluCounter, 7680 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3362 SdHoareTripleChecker+Valid, 11264 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:41:51,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3362 Valid, 11264 Invalid, 1312 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1303 Invalid, 8 Unknown, 0 Unchecked, 28.0s Time] [2024-11-14 05:41:51,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66084 states. [2024-11-14 05:41:55,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66084 to 66080. [2024-11-14 05:41:55,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66080 states, 39271 states have (on average 1.2752667362684933) internal successors, (50081), 40418 states have internal predecessors, (50081), 21214 states have call successors, (21214), 5604 states have call predecessors, (21214), 5591 states have return successors, (21386), 20923 states have call predecessors, (21386), 21210 states have call successors, (21386) [2024-11-14 05:41:55,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66080 states to 66080 states and 92681 transitions. [2024-11-14 05:41:55,370 INFO L78 Accepts]: Start accepts. Automaton has 66080 states and 92681 transitions. Word has length 520 [2024-11-14 05:41:55,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:41:55,371 INFO L471 AbstractCegarLoop]: Abstraction has 66080 states and 92681 transitions. [2024-11-14 05:41:55,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2024-11-14 05:41:55,372 INFO L276 IsEmpty]: Start isEmpty. Operand 66080 states and 92681 transitions. [2024-11-14 05:41:55,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2024-11-14 05:41:55,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:41:55,382 INFO L215 NwaCegarLoop]: trace histogram [49, 44, 44, 44, 44, 44, 44, 5, 5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:41:55,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 05:41:55,382 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-14 05:41:55,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:41:55,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1727310146, now seen corresponding path program 1 times [2024-11-14 05:41:55,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:41:55,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110417641] [2024-11-14 05:41:55,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:41:55,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:42:04,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:42:05,933 INFO L134 CoverageAnalysis]: Checked inductivity of 8070 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8066 trivial. 0 not checked. [2024-11-14 05:42:05,934 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:42:05,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110417641] [2024-11-14 05:42:05,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110417641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:42:05,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:42:05,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:42:05,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794627245] [2024-11-14 05:42:05,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:42:05,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:42:05,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:42:05,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:42:05,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:42:05,937 INFO L87 Difference]: Start difference. First operand 66080 states and 92681 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2024-11-14 05:42:08,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:42:10,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:42:12,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:42:17,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:42:19,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:42:21,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:42:29,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:42:31,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:42:33,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:42:37,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:42:37,492 INFO L93 Difference]: Finished difference Result 66086 states and 92686 transitions. [2024-11-14 05:42:37,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:42:37,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 534 [2024-11-14 05:42:37,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:42:37,854 INFO L225 Difference]: With dead ends: 66086 [2024-11-14 05:42:37,855 INFO L226 Difference]: Without dead ends: 66084 [2024-11-14 05:42:37,884 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:42:37,887 INFO L432 NwaCegarLoop]: 3586 mSDtfsCounter, 3867 mSDsluCounter, 7157 mSDsCounter, 0 mSdLazyCounter, 1225 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3868 SdHoareTripleChecker+Valid, 10743 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1225 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.8s IncrementalHoareTripleChecker+Time [2024-11-14 05:42:37,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3868 Valid, 10743 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1225 Invalid, 9 Unknown, 0 Unchecked, 28.8s Time] [2024-11-14 05:42:37,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66084 states. [2024-11-14 05:42:43,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66084 to 66084. [2024-11-14 05:42:43,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66084 states, 39274 states have (on average 1.2752457096297805) internal successors, (50084), 40421 states have internal predecessors, (50084), 21214 states have call successors, (21214), 5605 states have call predecessors, (21214), 5592 states have return successors, (21386), 20923 states have call predecessors, (21386), 21210 states have call successors, (21386) [2024-11-14 05:42:43,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66084 states to 66084 states and 92684 transitions. [2024-11-14 05:42:43,690 INFO L78 Accepts]: Start accepts. Automaton has 66084 states and 92684 transitions. Word has length 534 [2024-11-14 05:42:43,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:42:43,691 INFO L471 AbstractCegarLoop]: Abstraction has 66084 states and 92684 transitions. [2024-11-14 05:42:43,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2024-11-14 05:42:43,691 INFO L276 IsEmpty]: Start isEmpty. Operand 66084 states and 92684 transitions. [2024-11-14 05:42:43,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2024-11-14 05:42:43,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:42:43,702 INFO L215 NwaCegarLoop]: trace histogram [49, 44, 44, 44, 44, 44, 44, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:42:43,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 05:42:43,703 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-14 05:42:43,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:42:43,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1682433093, now seen corresponding path program 1 times [2024-11-14 05:42:43,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:42:43,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761491903] [2024-11-14 05:42:43,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:42:43,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:42:52,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:42:54,259 INFO L134 CoverageAnalysis]: Checked inductivity of 8081 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8075 trivial. 0 not checked. [2024-11-14 05:42:54,262 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:42:54,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761491903] [2024-11-14 05:42:54,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761491903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:42:54,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:42:54,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:42:54,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979295119] [2024-11-14 05:42:54,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:42:54,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:42:54,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:42:54,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:42:54,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:42:54,268 INFO L87 Difference]: Start difference. First operand 66084 states and 92684 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2024-11-14 05:42:56,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:42:58,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:43:00,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:43:06,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:43:08,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:43:10,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:43:18,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:43:22,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:43:22,064 INFO L93 Difference]: Finished difference Result 66090 states and 92689 transitions. [2024-11-14 05:43:22,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:43:22,065 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 540 [2024-11-14 05:43:22,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:43:22,395 INFO L225 Difference]: With dead ends: 66090 [2024-11-14 05:43:22,395 INFO L226 Difference]: Without dead ends: 66088 [2024-11-14 05:43:22,430 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:43:22,431 INFO L432 NwaCegarLoop]: 3586 mSDtfsCounter, 3866 mSDsluCounter, 7157 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3867 SdHoareTripleChecker+Valid, 10743 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:43:22,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3867 Valid, 10743 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1227 Invalid, 7 Unknown, 0 Unchecked, 25.1s Time] [2024-11-14 05:43:22,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66088 states. [2024-11-14 05:43:26,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66088 to 66088. [2024-11-14 05:43:26,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66088 states, 39277 states have (on average 1.2752246862031213) internal successors, (50087), 40424 states have internal predecessors, (50087), 21214 states have call successors, (21214), 5606 states have call predecessors, (21214), 5593 states have return successors, (21386), 20923 states have call predecessors, (21386), 21210 states have call successors, (21386) [2024-11-14 05:43:26,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66088 states to 66088 states and 92687 transitions. [2024-11-14 05:43:26,762 INFO L78 Accepts]: Start accepts. Automaton has 66088 states and 92687 transitions. Word has length 540 [2024-11-14 05:43:26,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:43:26,763 INFO L471 AbstractCegarLoop]: Abstraction has 66088 states and 92687 transitions. [2024-11-14 05:43:26,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2024-11-14 05:43:26,763 INFO L276 IsEmpty]: Start isEmpty. Operand 66088 states and 92687 transitions. [2024-11-14 05:43:26,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2024-11-14 05:43:26,770 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:43:26,770 INFO L215 NwaCegarLoop]: trace histogram [49, 44, 44, 44, 44, 44, 44, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:43:26,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 05:43:26,771 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-14 05:43:26,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:43:26,771 INFO L85 PathProgramCache]: Analyzing trace with hash -376842685, now seen corresponding path program 1 times [2024-11-14 05:43:26,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:43:26,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402918768] [2024-11-14 05:43:26,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:43:26,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:43:35,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:43:36,992 INFO L134 CoverageAnalysis]: Checked inductivity of 8095 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8087 trivial. 0 not checked. [2024-11-14 05:43:36,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:43:36,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402918768] [2024-11-14 05:43:36,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402918768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:43:36,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:43:36,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:43:36,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683860429] [2024-11-14 05:43:36,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:43:36,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:43:36,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:43:36,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:43:36,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:43:36,995 INFO L87 Difference]: Start difference. First operand 66088 states and 92687 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2024-11-14 05:43:39,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:43:41,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:43:43,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:43:49,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:43:51,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:43:53,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:44:00,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:44:02,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:44:08,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:44:08,074 INFO L93 Difference]: Finished difference Result 68245 states and 95077 transitions. [2024-11-14 05:44:08,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:44:08,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 545 [2024-11-14 05:44:08,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:44:08,509 INFO L225 Difference]: With dead ends: 68245 [2024-11-14 05:44:08,509 INFO L226 Difference]: Without dead ends: 68243 [2024-11-14 05:44:08,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:44:08,549 INFO L432 NwaCegarLoop]: 3616 mSDtfsCounter, 3746 mSDsluCounter, 7362 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3747 SdHoareTripleChecker+Valid, 10978 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:44:08,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3747 Valid, 10978 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1303 Invalid, 8 Unknown, 0 Unchecked, 27.5s Time] [2024-11-14 05:44:08,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68243 states. [2024-11-14 05:44:13,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68243 to 68013. [2024-11-14 05:44:13,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68013 states, 40343 states have (on average 1.2742731080980592) internal successors, (51408), 41602 states have internal predecessors, (51408), 21634 states have call successors, (21634), 6157 states have call predecessors, (21634), 6032 states have return successors, (21806), 21091 states have call predecessors, (21806), 21630 states have call successors, (21806) [2024-11-14 05:44:13,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68013 states to 68013 states and 94848 transitions. [2024-11-14 05:44:14,150 INFO L78 Accepts]: Start accepts. Automaton has 68013 states and 94848 transitions. Word has length 545 [2024-11-14 05:44:14,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:44:14,152 INFO L471 AbstractCegarLoop]: Abstraction has 68013 states and 94848 transitions. [2024-11-14 05:44:14,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2024-11-14 05:44:14,152 INFO L276 IsEmpty]: Start isEmpty. Operand 68013 states and 94848 transitions. [2024-11-14 05:44:14,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2024-11-14 05:44:14,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:44:14,168 INFO L215 NwaCegarLoop]: trace histogram [49, 44, 44, 44, 44, 44, 44, 6, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:44:14,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-14 05:44:14,169 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-14 05:44:14,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:44:14,170 INFO L85 PathProgramCache]: Analyzing trace with hash -858905380, now seen corresponding path program 1 times [2024-11-14 05:44:14,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:44:14,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105822282] [2024-11-14 05:44:14,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:44:14,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:44:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:44:26,552 INFO L134 CoverageAnalysis]: Checked inductivity of 8112 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8102 trivial. 0 not checked. [2024-11-14 05:44:26,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:44:26,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105822282] [2024-11-14 05:44:26,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105822282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:44:26,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:44:26,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:44:26,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141357193] [2024-11-14 05:44:26,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:44:26,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:44:26,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:44:26,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:44:26,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:44:26,555 INFO L87 Difference]: Start difference. First operand 68013 states and 94848 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (64), 3 states have call predecessors, (64), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2024-11-14 05:44:28,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:44:30,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:44:33,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:44:38,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:44:40,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:44:42,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:44:52,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:44:54,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:44:59,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:44:59,678 INFO L93 Difference]: Finished difference Result 69618 states and 96264 transitions. [2024-11-14 05:44:59,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:44:59,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (64), 3 states have call predecessors, (64), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 549 [2024-11-14 05:44:59,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:45:00,345 INFO L225 Difference]: With dead ends: 69618 [2024-11-14 05:45:00,345 INFO L226 Difference]: Without dead ends: 69616 [2024-11-14 05:45:00,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:45:00,387 INFO L432 NwaCegarLoop]: 3612 mSDtfsCounter, 3557 mSDsluCounter, 7530 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3558 SdHoareTripleChecker+Valid, 11142 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:45:00,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3558 Valid, 11142 Invalid, 1307 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1298 Invalid, 8 Unknown, 0 Unchecked, 29.0s Time] [2024-11-14 05:45:00,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69616 states. [2024-11-14 05:45:05,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69616 to 69612. [2024-11-14 05:45:05,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69612 states, 41278 states have (on average 1.2714763312175978) internal successors, (52484), 42537 states have internal predecessors, (52484), 21802 states have call successors, (21802), 6653 states have call predecessors, (21802), 6528 states have return successors, (21974), 21259 states have call predecessors, (21974), 21798 states have call successors, (21974) [2024-11-14 05:45:05,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69612 states to 69612 states and 96260 transitions. [2024-11-14 05:45:06,071 INFO L78 Accepts]: Start accepts. Automaton has 69612 states and 96260 transitions. Word has length 549 [2024-11-14 05:45:06,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:45:06,073 INFO L471 AbstractCegarLoop]: Abstraction has 69612 states and 96260 transitions. [2024-11-14 05:45:06,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (64), 3 states have call predecessors, (64), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2024-11-14 05:45:06,074 INFO L276 IsEmpty]: Start isEmpty. Operand 69612 states and 96260 transitions. [2024-11-14 05:45:06,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2024-11-14 05:45:06,100 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:45:06,100 INFO L215 NwaCegarLoop]: trace histogram [49, 44, 44, 44, 44, 44, 44, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:45:06,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-14 05:45:06,101 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-14 05:45:06,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:45:06,106 INFO L85 PathProgramCache]: Analyzing trace with hash 2035126160, now seen corresponding path program 1 times [2024-11-14 05:45:06,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:45:06,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435715463] [2024-11-14 05:45:06,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:45:06,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:45:14,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:45:15,254 INFO L134 CoverageAnalysis]: Checked inductivity of 8049 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8046 trivial. 0 not checked. [2024-11-14 05:45:15,254 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:45:15,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435715463] [2024-11-14 05:45:15,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435715463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:45:15,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:45:15,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:45:15,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145200807] [2024-11-14 05:45:15,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:45:15,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:45:15,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:45:15,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:45:15,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:45:15,258 INFO L87 Difference]: Start difference. First operand 69612 states and 96260 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2024-11-14 05:45:17,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:45:19,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:45:28,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:45:30,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:45:33,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:45:35,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:45:38,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:45:45,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:45:45,398 INFO L93 Difference]: Finished difference Result 167592 states and 231585 transitions. [2024-11-14 05:45:45,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:45:45,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) Word has length 542 [2024-11-14 05:45:45,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:45:46,019 INFO L225 Difference]: With dead ends: 167592 [2024-11-14 05:45:46,019 INFO L226 Difference]: Without dead ends: 98234 [2024-11-14 05:45:46,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:45:46,183 INFO L432 NwaCegarLoop]: 6491 mSDtfsCounter, 3254 mSDsluCounter, 3533 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 9 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3254 SdHoareTripleChecker+Valid, 10024 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:45:46,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3254 Valid, 10024 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1202 Invalid, 7 Unknown, 0 Unchecked, 24.5s Time] [2024-11-14 05:45:46,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98234 states. [2024-11-14 05:45:53,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98234 to 98186. [2024-11-14 05:45:53,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98186 states, 58228 states have (on average 1.2693206017723433) internal successors, (73910), 59991 states have internal predecessors, (73910), 30637 states have call successors, (30637), 9502 states have call predecessors, (30637), 9317 states have return successors, (30921), 29848 states have call predecessors, (30921), 30633 states have call successors, (30921) [2024-11-14 05:45:53,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98186 states to 98186 states and 135468 transitions. [2024-11-14 05:45:53,839 INFO L78 Accepts]: Start accepts. Automaton has 98186 states and 135468 transitions. Word has length 542 [2024-11-14 05:45:53,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:45:53,840 INFO L471 AbstractCegarLoop]: Abstraction has 98186 states and 135468 transitions. [2024-11-14 05:45:53,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2024-11-14 05:45:53,840 INFO L276 IsEmpty]: Start isEmpty. Operand 98186 states and 135468 transitions. [2024-11-14 05:45:53,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2024-11-14 05:45:53,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:45:53,856 INFO L215 NwaCegarLoop]: trace histogram [49, 44, 44, 44, 44, 44, 44, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:45:53,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-14 05:45:53,856 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-14 05:45:53,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:45:53,857 INFO L85 PathProgramCache]: Analyzing trace with hash -560761917, now seen corresponding path program 1 times [2024-11-14 05:45:53,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:45:53,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600297578] [2024-11-14 05:45:53,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:45:53,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:46:02,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:46:03,398 INFO L134 CoverageAnalysis]: Checked inductivity of 8049 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8046 trivial. 0 not checked. [2024-11-14 05:46:03,398 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:46:03,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600297578] [2024-11-14 05:46:03,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600297578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:46:03,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:46:03,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:46:03,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391368434] [2024-11-14 05:46:03,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:46:03,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:46:03,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:46:03,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:46:03,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:46:03,401 INFO L87 Difference]: Start difference. First operand 98186 states and 135468 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2024-11-14 05:46:05,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:46:07,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:46:17,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:46:19,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:46:22,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:46:24,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:46:27,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:46:31,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:46:41,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:46:41,480 INFO L93 Difference]: Finished difference Result 239522 states and 330503 transitions. [2024-11-14 05:46:41,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:46:41,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) Word has length 542 [2024-11-14 05:46:41,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:46:42,392 INFO L225 Difference]: With dead ends: 239522 [2024-11-14 05:46:42,392 INFO L226 Difference]: Without dead ends: 141590 [2024-11-14 05:46:42,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:46:42,839 INFO L432 NwaCegarLoop]: 6884 mSDtfsCounter, 3684 mSDsluCounter, 3532 mSDsCounter, 0 mSdLazyCounter, 1247 mSolverCounterSat, 9 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3684 SdHoareTripleChecker+Valid, 10416 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1247 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:46:42,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3684 Valid, 10416 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1247 Invalid, 8 Unknown, 0 Unchecked, 28.1s Time] [2024-11-14 05:46:42,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141590 states. [2024-11-14 05:46:56,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141590 to 141542. [2024-11-14 05:46:56,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141542 states, 84026 states have (on average 1.2687977530764287) internal successors, (106612), 86597 states have internal predecessors, (106612), 44017 states have call successors, (44017), 13768 states have call predecessors, (44017), 13495 states have return successors, (44477), 42868 states have call predecessors, (44477), 44013 states have call successors, (44477) [2024-11-14 05:46:58,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141542 states to 141542 states and 195106 transitions. [2024-11-14 05:46:58,566 INFO L78 Accepts]: Start accepts. Automaton has 141542 states and 195106 transitions. Word has length 542 [2024-11-14 05:46:58,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:46:58,568 INFO L471 AbstractCegarLoop]: Abstraction has 141542 states and 195106 transitions. [2024-11-14 05:46:58,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2024-11-14 05:46:58,568 INFO L276 IsEmpty]: Start isEmpty. Operand 141542 states and 195106 transitions. [2024-11-14 05:46:58,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 555 [2024-11-14 05:46:58,584 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:46:58,584 INFO L215 NwaCegarLoop]: trace histogram [49, 44, 44, 44, 44, 44, 44, 7, 6, 6, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:46:58,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-14 05:46:58,585 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2024-11-14 05:46:58,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:46:58,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1973712574, now seen corresponding path program 1 times [2024-11-14 05:46:58,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:46:58,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422582977] [2024-11-14 05:46:58,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:46:58,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:47:11,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:47:12,385 INFO L134 CoverageAnalysis]: Checked inductivity of 8134 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8122 trivial. 0 not checked. [2024-11-14 05:47:12,385 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:47:12,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422582977] [2024-11-14 05:47:12,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422582977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:47:12,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:47:12,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:47:12,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858180278] [2024-11-14 05:47:12,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:47:12,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:47:12,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:47:12,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:47:12,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:47:12,389 INFO L87 Difference]: Start difference. First operand 141542 states and 195106 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (65), 3 states have call predecessors, (65), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2024-11-14 05:47:14,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:47:16,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:47:18,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:47:29,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:47:31,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:47:33,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:47:36,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:47:38,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:47:40,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:47:51,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:47:51,971 INFO L93 Difference]: Finished difference Result 141548 states and 195111 transitions. [2024-11-14 05:47:51,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:47:51,972 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (65), 3 states have call predecessors, (65), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) Word has length 554 [2024-11-14 05:47:51,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:47:52,845 INFO L225 Difference]: With dead ends: 141548 [2024-11-14 05:47:52,846 INFO L226 Difference]: Without dead ends: 141546 [2024-11-14 05:47:52,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:47:52,897 INFO L432 NwaCegarLoop]: 3586 mSDtfsCounter, 3863 mSDsluCounter, 7157 mSDsCounter, 0 mSdLazyCounter, 1225 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3864 SdHoareTripleChecker+Valid, 10743 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1225 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:47:52,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3864 Valid, 10743 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1225 Invalid, 9 Unknown, 0 Unchecked, 30.2s Time] [2024-11-14 05:47:53,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141546 states. [2024-11-14 05:48:03,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141546 to 141546. [2024-11-14 05:48:03,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141546 states, 84029 states have (on average 1.2687881564697903) internal successors, (106615), 86600 states have internal predecessors, (106615), 44017 states have call successors, (44017), 13769 states have call predecessors, (44017), 13496 states have return successors, (44477), 42868 states have call predecessors, (44477), 44013 states have call successors, (44477) [2024-11-14 05:48:04,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141546 states to 141546 states and 195109 transitions. [2024-11-14 05:48:04,635 INFO L78 Accepts]: Start accepts. Automaton has 141546 states and 195109 transitions. Word has length 554 [2024-11-14 05:48:04,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:48:04,636 INFO L471 AbstractCegarLoop]: Abstraction has 141546 states and 195109 transitions. [2024-11-14 05:48:04,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (65), 3 states have call predecessors, (65), 1 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2024-11-14 05:48:04,636 INFO L276 IsEmpty]: Start isEmpty. Operand 141546 states and 195109 transitions. [2024-11-14 05:48:04,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2024-11-14 05:48:04,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:48:04,643 INFO L215 NwaCegarLoop]: trace histogram [49, 44, 44, 44, 44, 44, 44, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:48:04,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-14 05:48:04,644 INFO L396 AbstractCegarLoop]: === Iteration 16 === 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)] === [2024-11-14 05:48:04,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:48:04,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1861007821, now seen corresponding path program 1 times [2024-11-14 05:48:04,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:48:04,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398755894] [2024-11-14 05:48:04,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:48:04,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:48:14,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:48:14,483 INFO L134 CoverageAnalysis]: Checked inductivity of 8062 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8055 trivial. 0 not checked. [2024-11-14 05:48:14,483 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:48:14,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398755894] [2024-11-14 05:48:14,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398755894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:48:14,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:48:14,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:48:14,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217953448] [2024-11-14 05:48:14,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:48:14,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:48:14,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:48:14,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:48:14,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:48:14,486 INFO L87 Difference]: Start difference. First operand 141546 states and 195109 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2024-11-14 05:48:16,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:48:18,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []