./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c3f71a-b0c2-4dec-ae3e-70d01e343591/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c3f71a-b0c2-4dec-ae3e-70d01e343591/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c3f71a-b0c2-4dec-ae3e-70d01e343591/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c3f71a-b0c2-4dec-ae3e-70d01e343591/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c3f71a-b0c2-4dec-ae3e-70d01e343591/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c3f71a-b0c2-4dec-ae3e-70d01e343591/bin/utaipan-verify-YMUCfTKeje --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 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:39:57,586 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:39:57,660 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c3f71a-b0c2-4dec-ae3e-70d01e343591/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 05:39:57,665 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:39:57,666 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:39:57,692 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:39:57,693 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:39:57,693 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:39:57,694 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:39:57,695 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:39:57,695 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:39:57,696 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:39:57,696 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:39:57,696 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:39:57,697 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:39:57,697 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:39:57,698 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:39:57,698 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:39:57,699 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:39:57,699 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:39:57,700 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:39:57,700 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:39:57,701 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:39:57,702 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:39:57,702 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:39:57,702 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:39:57,703 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:39:57,703 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:39:57,704 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:39:57,704 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:39:57,705 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:39:57,705 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:39:57,706 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:39:57,706 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:39:57,706 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:39:57,707 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:39:57,707 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:39:57,707 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:39:57,708 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:39:57,708 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:39:57,709 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:39:57,709 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:39:57,709 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:39:57,710 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:39:57,710 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c3f71a-b0c2-4dec-ae3e-70d01e343591/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c3f71a-b0c2-4dec-ae3e-70d01e343591/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c9f1b92adb9acc769d32e01935187ba88bc4e22a7a5cb13176ef92b5b4818de [2024-11-09 05:39:57,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:39:58,024 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:39:58,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:39:58,029 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:39:58,030 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:39:58,032 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c3f71a-b0c2-4dec-ae3e-70d01e343591/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i Unable to find full path for "g++" [2024-11-09 05:40:00,080 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:40:00,695 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:40:00,697 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c3f71a-b0c2-4dec-ae3e-70d01e343591/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2024-11-09 05:40:00,750 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c3f71a-b0c2-4dec-ae3e-70d01e343591/bin/utaipan-verify-YMUCfTKeje/data/37164bf8c/b0f0c1e77beb4ecaa72b9562fef99d44/FLAGbe41b1c83 [2024-11-09 05:40:00,769 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c3f71a-b0c2-4dec-ae3e-70d01e343591/bin/utaipan-verify-YMUCfTKeje/data/37164bf8c/b0f0c1e77beb4ecaa72b9562fef99d44 [2024-11-09 05:40:00,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:40:00,774 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:40:00,776 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:40:00,776 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:40:00,783 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:40:00,783 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:40:00" (1/1) ... [2024-11-09 05:40:00,785 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f7c458b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:40:00, skipping insertion in model container [2024-11-09 05:40:00,785 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:40:00" (1/1) ... [2024-11-09 05:40:00,971 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:40:04,369 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_86c3f71a-b0c2-4dec-ae3e-70d01e343591/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2024-11-09 05:40:04,382 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_86c3f71a-b0c2-4dec-ae3e-70d01e343591/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2024-11-09 05:40:04,383 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_86c3f71a-b0c2-4dec-ae3e-70d01e343591/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2024-11-09 05:40:04,384 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_86c3f71a-b0c2-4dec-ae3e-70d01e343591/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2024-11-09 05:40:04,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:40:04,478 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:40:04,634 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5252] [2024-11-09 05:40:04,637 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5259] [2024-11-09 05:40:04,637 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5266] [2024-11-09 05:40:04,642 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)); [5302-5303] [2024-11-09 05:40:04,643 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"); [5308-5310] [2024-11-09 05:40:04,657 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [5526-5527] [2024-11-09 05:40:04,662 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [5560-5561] [2024-11-09 05:40:04,863 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7910] [2024-11-09 05:40:04,997 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_86c3f71a-b0c2-4dec-ae3e-70d01e343591/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315136,315149] [2024-11-09 05:40:04,999 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_86c3f71a-b0c2-4dec-ae3e-70d01e343591/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315305,315318] [2024-11-09 05:40:05,000 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_86c3f71a-b0c2-4dec-ae3e-70d01e343591/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315472,315485] [2024-11-09 05:40:05,001 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_86c3f71a-b0c2-4dec-ae3e-70d01e343591/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i[315640,315653] [2024-11-09 05:40:05,013 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:40:05,324 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:40:05,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:40:05 WrapperNode [2024-11-09 05:40:05,325 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:40:05,327 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:40:05,327 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:40:05,327 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:40:05,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:40:05" (1/1) ... [2024-11-09 05:40:05,454 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:40:05" (1/1) ... [2024-11-09 05:40:05,723 INFO L138 Inliner]: procedures = 430, calls = 1731, calls flagged for inlining = 202, calls inlined = 186, statements flattened = 4866 [2024-11-09 05:40:05,724 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:40:05,725 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:40:05,726 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:40:05,727 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:40:05,740 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:40:05" (1/1) ... [2024-11-09 05:40:05,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:40:05" (1/1) ... [2024-11-09 05:40:05,784 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:40:05" (1/1) ... [2024-11-09 05:40:05,785 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:40:05" (1/1) ... [2024-11-09 05:40:05,948 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:40:05" (1/1) ... [2024-11-09 05:40:05,995 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:40:05" (1/1) ... [2024-11-09 05:40:06,033 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:40:05" (1/1) ... [2024-11-09 05:40:06,060 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:40:05" (1/1) ... [2024-11-09 05:40:06,100 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:40:06,101 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:40:06,102 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:40:06,102 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:40:06,103 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:40:05" (1/1) ... [2024-11-09 05:40:06,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:40:06,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c3f71a-b0c2-4dec-ae3e-70d01e343591/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:40:06,216 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c3f71a-b0c2-4dec-ae3e-70d01e343591/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:40:06,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86c3f71a-b0c2-4dec-ae3e-70d01e343591/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:40:06,262 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2024-11-09 05:40:06,262 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2024-11-09 05:40:06,262 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2024-11-09 05:40:06,262 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2024-11-09 05:40:06,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-09 05:40:06,263 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-09 05:40:06,264 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-09 05:40:06,264 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-09 05:40:06,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 05:40:06,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 05:40:06,265 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2024-11-09 05:40:06,266 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2024-11-09 05:40:06,266 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2024-11-09 05:40:06,266 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2024-11-09 05:40:06,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-09 05:40:06,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-09 05:40:06,267 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2024-11-09 05:40:06,267 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2024-11-09 05:40:06,269 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2024-11-09 05:40:06,270 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2024-11-09 05:40:06,270 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2024-11-09 05:40:06,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2024-11-09 05:40:06,270 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2024-11-09 05:40:06,270 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2024-11-09 05:40:06,270 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2024-11-09 05:40:06,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2024-11-09 05:40:06,271 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2024-11-09 05:40:06,271 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2024-11-09 05:40:06,271 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2024-11-09 05:40:06,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2024-11-09 05:40:06,272 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2024-11-09 05:40:06,272 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2024-11-09 05:40:06,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-11-09 05:40:06,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-11-09 05:40:06,272 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2024-11-09 05:40:06,273 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2024-11-09 05:40:06,273 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2024-11-09 05:40:06,273 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2024-11-09 05:40:06,273 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2024-11-09 05:40:06,273 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2024-11-09 05:40:06,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-09 05:40:06,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-09 05:40:06,274 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2024-11-09 05:40:06,274 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2024-11-09 05:40:06,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:40:06,274 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2024-11-09 05:40:06,274 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2024-11-09 05:40:06,274 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_remove [2024-11-09 05:40:06,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_remove [2024-11-09 05:40:06,275 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-09 05:40:06,275 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-09 05:40:06,275 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-11-09 05:40:06,275 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-11-09 05:40:06,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-09 05:40:06,275 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2024-11-09 05:40:06,276 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2024-11-09 05:40:06,276 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2024-11-09 05:40:06,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2024-11-09 05:40:06,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 05:40:06,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-11-09 05:40:06,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-11-09 05:40:06,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 05:40:06,278 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2024-11-09 05:40:06,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2024-11-09 05:40:06,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-09 05:40:06,280 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-09 05:40:06,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2024-11-09 05:40:06,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2024-11-09 05:40:06,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2024-11-09 05:40:06,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2024-11-09 05:40:06,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2024-11-09 05:40:06,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2024-11-09 05:40:06,281 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2024-11-09 05:40:06,281 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2024-11-09 05:40:06,282 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2024-11-09 05:40:06,282 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2024-11-09 05:40:06,282 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2024-11-09 05:40:06,282 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2024-11-09 05:40:06,282 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2024-11-09 05:40:06,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2024-11-09 05:40:06,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-09 05:40:06,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-09 05:40:06,283 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2024-11-09 05:40:06,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2024-11-09 05:40:06,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 05:40:06,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2024-11-09 05:40:06,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2024-11-09 05:40:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2024-11-09 05:40:06,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2024-11-09 05:40:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:40:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-09 05:40:06,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-09 05:40:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-09 05:40:06,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-09 05:40:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 05:40:06,287 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2024-11-09 05:40:06,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2024-11-09 05:40:06,287 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-09 05:40:06,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-09 05:40:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2024-11-09 05:40:06,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2024-11-09 05:40:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-11-09 05:40:06,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-11-09 05:40:06,289 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2024-11-09 05:40:06,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2024-11-09 05:40:06,289 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-11-09 05:40:06,289 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-11-09 05:40:06,289 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-11-09 05:40:06,290 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-11-09 05:40:06,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2024-11-09 05:40:06,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2024-11-09 05:40:06,291 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2024-11-09 05:40:06,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2024-11-09 05:40:06,291 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2024-11-09 05:40:06,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2024-11-09 05:40:06,292 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2024-11-09 05:40:06,292 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2024-11-09 05:40:06,292 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-09 05:40:06,293 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-09 05:40:06,293 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2024-11-09 05:40:06,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2024-11-09 05:40:06,293 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2024-11-09 05:40:06,293 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2024-11-09 05:40:06,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:40:06,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:40:06,294 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2024-11-09 05:40:06,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2024-11-09 05:40:06,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-09 05:40:06,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 05:40:06,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-09 05:40:06,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-09 05:40:06,296 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2024-11-09 05:40:06,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2024-11-09 05:40:06,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-09 05:40:06,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-09 05:40:06,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2024-11-09 05:40:06,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2024-11-09 05:40:06,297 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-09 05:40:06,297 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-09 05:40:06,297 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2024-11-09 05:40:06,297 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2024-11-09 05:40:06,297 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-09 05:40:06,299 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-09 05:40:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2024-11-09 05:40:06,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2024-11-09 05:40:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2024-11-09 05:40:06,299 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2024-11-09 05:40:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 05:40:06,299 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2024-11-09 05:40:06,300 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2024-11-09 05:40:06,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 05:40:06,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_ipg_nic_private [2024-11-09 05:40:06,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_ipg_nic_private [2024-11-09 05:40:06,300 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2024-11-09 05:40:06,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2024-11-09 05:40:06,301 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2024-11-09 05:40:06,302 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2024-11-09 05:40:06,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 05:40:06,302 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-09 05:40:06,303 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-09 05:40:06,303 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2024-11-09 05:40:06,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2024-11-09 05:40:06,303 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2024-11-09 05:40:06,303 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2024-11-09 05:40:06,304 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-09 05:40:06,304 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-09 05:40:06,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-11-09 05:40:06,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-11-09 05:40:06,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2024-11-09 05:40:06,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2024-11-09 05:40:06,305 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2024-11-09 05:40:06,305 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2024-11-09 05:40:06,305 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2024-11-09 05:40:06,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2024-11-09 05:40:06,305 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2024-11-09 05:40:06,306 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2024-11-09 05:40:06,306 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2024-11-09 05:40:06,306 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2024-11-09 05:40:06,306 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-09 05:40:06,307 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-09 05:40:06,307 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-11-09 05:40:06,307 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-11-09 05:40:06,307 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-09 05:40:06,307 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-09 05:40:06,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 05:40:06,307 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2024-11-09 05:40:06,307 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2024-11-09 05:40:06,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-09 05:40:06,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-09 05:40:06,308 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nway_reset [2024-11-09 05:40:06,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nway_reset [2024-11-09 05:40:06,308 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2024-11-09 05:40:06,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2024-11-09 05:40:06,308 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2024-11-09 05:40:06,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2024-11-09 05:40:06,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2024-11-09 05:40:06,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2024-11-09 05:40:06,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_ipg_nic_private [2024-11-09 05:40:06,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_ipg_nic_private [2024-11-09 05:40:06,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-11-09 05:40:06,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-11-09 05:40:06,309 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2024-11-09 05:40:06,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2024-11-09 05:40:06,309 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2024-11-09 05:40:06,309 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2024-11-09 05:40:06,309 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2024-11-09 05:40:06,309 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2024-11-09 05:40:06,310 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2024-11-09 05:40:06,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:40:06,310 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2024-11-09 05:40:06,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2024-11-09 05:40:06,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-11-09 05:40:06,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-11-09 05:40:07,351 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:40:07,355 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:40:08,596 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-09 05:40:21,533 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-11-09 05:40:22,592 INFO L? ?]: Removed 2379 outVars from TransFormulas that were not future-live. [2024-11-09 05:40:22,592 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:40:26,175 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:40:26,177 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 05:40:26,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:40:26 BoogieIcfgContainer [2024-11-09 05:40:26,178 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:40:26,182 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:40:26,183 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:40:26,187 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:40:26,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:40:00" (1/3) ... [2024-11-09 05:40:26,189 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@311d3b76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:40:26, skipping insertion in model container [2024-11-09 05:40:26,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:40:05" (2/3) ... [2024-11-09 05:40:26,191 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@311d3b76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:40:26, skipping insertion in model container [2024-11-09 05:40:26,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:40:26" (3/3) ... [2024-11-09 05:40:26,193 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2024-11-09 05:40:26,219 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:40:26,220 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-09 05:40:26,370 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:40:26,379 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;@132b3293, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:40:26,379 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-09 05:40:26,398 INFO L276 IsEmpty]: Start isEmpty. Operand has 1358 states, 787 states have (on average 1.2693773824650572) internal successors, (999), 815 states have internal predecessors, (999), 473 states have call successors, (473), 98 states have call predecessors, (473), 97 states have return successors, (467), 464 states have call predecessors, (467), 467 states have call successors, (467) [2024-11-09 05:40:26,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-09 05:40:26,426 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:40:26,427 INFO L215 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:40:26,429 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:40:26,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:40:26,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1007864611, now seen corresponding path program 1 times [2024-11-09 05:40:26,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:40:26,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513469479] [2024-11-09 05:40:26,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:40:26,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:40:34,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:40:35,416 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-09 05:40:35,418 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:40:35,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513469479] [2024-11-09 05:40:35,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513469479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:40:35,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:40:35,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:40:35,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925033716] [2024-11-09 05:40:35,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:40:35,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:40:35,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:40:35,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:40:35,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:40:35,478 INFO L87 Difference]: Start difference. First operand has 1358 states, 787 states have (on average 1.2693773824650572) internal successors, (999), 815 states have internal predecessors, (999), 473 states have call successors, (473), 98 states have call predecessors, (473), 97 states have return successors, (467), 464 states have call predecessors, (467), 467 states have call successors, (467) Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 05:40:37,596 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 [] [2024-11-09 05:40:39,793 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 [] [2024-11-09 05:40:47,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:40:47,236 INFO L93 Difference]: Finished difference Result 3954 states and 5703 transitions. [2024-11-09 05:40:47,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:40:47,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 101 [2024-11-09 05:40:47,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:40:47,321 INFO L225 Difference]: With dead ends: 3954 [2024-11-09 05:40:47,322 INFO L226 Difference]: Without dead ends: 2603 [2024-11-09 05:40:47,352 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 [2024-11-09 05:40:47,359 INFO L432 NwaCegarLoop]: 1656 mSDtfsCounter, 1813 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1813 SdHoareTripleChecker+Valid, 3268 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:40:47,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1813 Valid, 3268 Invalid, 573 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 564 Invalid, 2 Unknown, 0 Unchecked, 11.3s Time] [2024-11-09 05:40:47,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2603 states. [2024-11-09 05:40:47,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2603 to 2599. [2024-11-09 05:40:47,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2599 states, 1516 states have (on average 1.2618733509234827) internal successors, (1913), 1569 states have internal predecessors, (1913), 890 states have call successors, (890), 191 states have call predecessors, (890), 190 states have return successors, (886), 880 states have call predecessors, (886), 886 states have call successors, (886) [2024-11-09 05:40:47,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2599 states to 2599 states and 3689 transitions. [2024-11-09 05:40:47,803 INFO L78 Accepts]: Start accepts. Automaton has 2599 states and 3689 transitions. Word has length 101 [2024-11-09 05:40:47,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:40:47,805 INFO L471 AbstractCegarLoop]: Abstraction has 2599 states and 3689 transitions. [2024-11-09 05:40:47,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 05:40:47,805 INFO L276 IsEmpty]: Start isEmpty. Operand 2599 states and 3689 transitions. [2024-11-09 05:40:47,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-09 05:40:47,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:40:47,822 INFO L215 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:40:47,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:40:47,822 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:40:47,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:40:47,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1955586956, now seen corresponding path program 1 times [2024-11-09 05:40:47,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:40:47,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269955520] [2024-11-09 05:40:47,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:40:47,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:40:54,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:40:55,486 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-09 05:40:55,487 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:40:55,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269955520] [2024-11-09 05:40:55,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269955520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:40:55,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:40:55,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:40:55,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579650691] [2024-11-09 05:40:55,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:40:55,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:40:55,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:40:55,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:40:55,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:40:55,495 INFO L87 Difference]: Start difference. First operand 2599 states and 3689 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-09 05:40:57,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:40:59,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:41:06,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:41:08,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:41:08,436 INFO L93 Difference]: Finished difference Result 7155 states and 10137 transitions. [2024-11-09 05:41:08,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:41:08,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 105 [2024-11-09 05:41:08,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:41:08,495 INFO L225 Difference]: With dead ends: 7155 [2024-11-09 05:41:08,496 INFO L226 Difference]: Without dead ends: 4573 [2024-11-09 05:41:08,519 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 [2024-11-09 05:41:08,521 INFO L432 NwaCegarLoop]: 1718 mSDtfsCounter, 1454 mSDsluCounter, 1588 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1454 SdHoareTripleChecker+Valid, 3306 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:41:08,521 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1454 Valid, 3306 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 574 Invalid, 2 Unknown, 0 Unchecked, 12.5s Time] [2024-11-09 05:41:08,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4573 states. [2024-11-09 05:41:08,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4573 to 4544. [2024-11-09 05:41:08,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4544 states, 2625 states have (on average 1.2525714285714287) internal successors, (3288), 2721 states have internal predecessors, (3288), 1563 states have call successors, (1563), 360 states have call predecessors, (1563), 353 states have return successors, (1579), 1530 states have call predecessors, (1579), 1559 states have call successors, (1579) [2024-11-09 05:41:08,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4544 states to 4544 states and 6430 transitions. [2024-11-09 05:41:09,002 INFO L78 Accepts]: Start accepts. Automaton has 4544 states and 6430 transitions. Word has length 105 [2024-11-09 05:41:09,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:41:09,004 INFO L471 AbstractCegarLoop]: Abstraction has 4544 states and 6430 transitions. [2024-11-09 05:41:09,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-09 05:41:09,005 INFO L276 IsEmpty]: Start isEmpty. Operand 4544 states and 6430 transitions. [2024-11-09 05:41:09,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-09 05:41:09,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:41:09,016 INFO L215 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 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] [2024-11-09 05:41:09,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:41:09,016 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:41:09,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:41:09,017 INFO L85 PathProgramCache]: Analyzing trace with hash -960296201, now seen corresponding path program 1 times [2024-11-09 05:41:09,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:41:09,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143392955] [2024-11-09 05:41:09,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:41:09,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:41:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:41:15,600 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2024-11-09 05:41:15,604 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:41:15,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143392955] [2024-11-09 05:41:15,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143392955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:41:15,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:41:15,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:41:15,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152502101] [2024-11-09 05:41:15,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:41:15,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:41:15,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:41:15,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:41:15,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:41:15,608 INFO L87 Difference]: Start difference. First operand 4544 states and 6430 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-09 05:41:17,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:41:19,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:41:26,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:41:27,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:41:27,476 INFO L93 Difference]: Finished difference Result 13142 states and 18536 transitions. [2024-11-09 05:41:27,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:41:27,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 145 [2024-11-09 05:41:27,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:41:27,567 INFO L225 Difference]: With dead ends: 13142 [2024-11-09 05:41:27,567 INFO L226 Difference]: Without dead ends: 8615 [2024-11-09 05:41:27,602 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 [2024-11-09 05:41:27,603 INFO L432 NwaCegarLoop]: 1635 mSDtfsCounter, 1726 mSDsluCounter, 1583 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1726 SdHoareTripleChecker+Valid, 3218 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:41:27,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1726 Valid, 3218 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 583 Invalid, 2 Unknown, 0 Unchecked, 11.5s Time] [2024-11-09 05:41:27,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8615 states. [2024-11-09 05:41:28,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8615 to 8584. [2024-11-09 05:41:28,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8584 states, 4945 states have (on average 1.243680485338726) internal successors, (6150), 5129 states have internal predecessors, (6150), 2943 states have call successors, (2943), 708 states have call predecessors, (2943), 693 states have return successors, (2979), 2870 states have call predecessors, (2979), 2939 states have call successors, (2979) [2024-11-09 05:41:28,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8584 states to 8584 states and 12072 transitions. [2024-11-09 05:41:28,267 INFO L78 Accepts]: Start accepts. Automaton has 8584 states and 12072 transitions. Word has length 145 [2024-11-09 05:41:28,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:41:28,269 INFO L471 AbstractCegarLoop]: Abstraction has 8584 states and 12072 transitions. [2024-11-09 05:41:28,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-09 05:41:28,270 INFO L276 IsEmpty]: Start isEmpty. Operand 8584 states and 12072 transitions. [2024-11-09 05:41:28,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-09 05:41:28,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:41:28,274 INFO L215 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 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] [2024-11-09 05:41:28,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:41:28,275 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:41:28,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:41:28,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1242005729, now seen corresponding path program 1 times [2024-11-09 05:41:28,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:41:28,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764422978] [2024-11-09 05:41:28,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:41:28,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:41:34,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:41:34,825 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2024-11-09 05:41:34,829 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:41:34,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764422978] [2024-11-09 05:41:34,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764422978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:41:34,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:41:34,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:41:34,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888096574] [2024-11-09 05:41:34,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:41:34,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:41:34,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:41:34,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:41:34,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:41:34,833 INFO L87 Difference]: Start difference. First operand 8584 states and 12072 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-09 05:41:36,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:41:39,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:41:43,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:41:47,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:41:47,550 INFO L93 Difference]: Finished difference Result 15422 states and 21688 transitions. [2024-11-09 05:41:47,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:41:47,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 143 [2024-11-09 05:41:47,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:41:47,614 INFO L225 Difference]: With dead ends: 15422 [2024-11-09 05:41:47,614 INFO L226 Difference]: Without dead ends: 6855 [2024-11-09 05:41:47,665 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 [2024-11-09 05:41:47,666 INFO L432 NwaCegarLoop]: 2600 mSDtfsCounter, 1354 mSDsluCounter, 1586 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1354 SdHoareTripleChecker+Valid, 4186 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:41:47,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1354 Valid, 4186 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 763 Invalid, 2 Unknown, 0 Unchecked, 12.4s Time] [2024-11-09 05:41:47,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6855 states. [2024-11-09 05:41:48,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6855 to 6824. [2024-11-09 05:41:48,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6824 states, 3986 states have (on average 1.2413447064726544) internal successors, (4948), 4132 states have internal predecessors, (4948), 2281 states have call successors, (2281), 567 states have call predecessors, (2281), 554 states have return successors, (2298), 2215 states have call predecessors, (2298), 2277 states have call successors, (2298) [2024-11-09 05:41:48,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6824 states to 6824 states and 9527 transitions. [2024-11-09 05:41:48,222 INFO L78 Accepts]: Start accepts. Automaton has 6824 states and 9527 transitions. Word has length 143 [2024-11-09 05:41:48,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:41:48,223 INFO L471 AbstractCegarLoop]: Abstraction has 6824 states and 9527 transitions. [2024-11-09 05:41:48,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-09 05:41:48,224 INFO L276 IsEmpty]: Start isEmpty. Operand 6824 states and 9527 transitions. [2024-11-09 05:41:48,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-09 05:41:48,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:41:48,227 INFO L215 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:41:48,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 05:41:48,227 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:41:48,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:41:48,228 INFO L85 PathProgramCache]: Analyzing trace with hash 632175723, now seen corresponding path program 1 times [2024-11-09 05:41:48,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:41:48,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976455686] [2024-11-09 05:41:48,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:41:48,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:41:54,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:41:55,446 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2024-11-09 05:41:55,447 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:41:55,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976455686] [2024-11-09 05:41:55,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976455686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:41:55,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:41:55,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:41:55,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558042532] [2024-11-09 05:41:55,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:41:55,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:41:55,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:41:55,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:41:55,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:41:55,453 INFO L87 Difference]: Start difference. First operand 6824 states and 9527 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 05:41:57,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:41:59,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:42:01,920 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 [] [2024-11-09 05:42:11,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:42:11,244 INFO L93 Difference]: Finished difference Result 6830 states and 9532 transitions. [2024-11-09 05:42:11,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:42:11,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2024-11-09 05:42:11,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:42:11,308 INFO L225 Difference]: With dead ends: 6830 [2024-11-09 05:42:11,308 INFO L226 Difference]: Without dead ends: 6828 [2024-11-09 05:42:11,314 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 [2024-11-09 05:42:11,315 INFO L432 NwaCegarLoop]: 1625 mSDtfsCounter, 1864 mSDsluCounter, 3237 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1865 SdHoareTripleChecker+Valid, 4862 SdHoareTripleChecker+Invalid, 843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:42:11,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1865 Valid, 4862 Invalid, 843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 840 Invalid, 3 Unknown, 0 Unchecked, 15.4s Time] [2024-11-09 05:42:11,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6828 states. [2024-11-09 05:42:11,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6828 to 6828. [2024-11-09 05:42:11,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6828 states, 3989 states have (on average 1.241163198796691) internal successors, (4951), 4135 states have internal predecessors, (4951), 2281 states have call successors, (2281), 568 states have call predecessors, (2281), 555 states have return successors, (2298), 2215 states have call predecessors, (2298), 2277 states have call successors, (2298) [2024-11-09 05:42:11,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6828 states to 6828 states and 9530 transitions. [2024-11-09 05:42:11,827 INFO L78 Accepts]: Start accepts. Automaton has 6828 states and 9530 transitions. Word has length 143 [2024-11-09 05:42:11,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:42:11,829 INFO L471 AbstractCegarLoop]: Abstraction has 6828 states and 9530 transitions. [2024-11-09 05:42:11,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-09 05:42:11,830 INFO L276 IsEmpty]: Start isEmpty. Operand 6828 states and 9530 transitions. [2024-11-09 05:42:11,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-09 05:42:11,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:42:11,835 INFO L215 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:42:11,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 05:42:11,835 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:42:11,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:42:11,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1549481552, now seen corresponding path program 1 times [2024-11-09 05:42:11,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:42:11,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782995385] [2024-11-09 05:42:11,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:42:11,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:42:18,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:42:19,161 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-11-09 05:42:19,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:42:19,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782995385] [2024-11-09 05:42:19,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782995385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:42:19,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:42:19,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:42:19,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437334300] [2024-11-09 05:42:19,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:42:19,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:42:19,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:42:19,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:42:19,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:42:19,164 INFO L87 Difference]: Start difference. First operand 6828 states and 9530 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 05:42:21,233 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 [] [2024-11-09 05:42:23,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:42:25,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:42:30,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:42:35,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:42:35,846 INFO L93 Difference]: Finished difference Result 6834 states and 9535 transitions. [2024-11-09 05:42:35,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:42:35,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 151 [2024-11-09 05:42:35,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:42:35,894 INFO L225 Difference]: With dead ends: 6834 [2024-11-09 05:42:35,894 INFO L226 Difference]: Without dead ends: 6832 [2024-11-09 05:42:35,900 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 [2024-11-09 05:42:35,901 INFO L432 NwaCegarLoop]: 1628 mSDtfsCounter, 1859 mSDsluCounter, 3238 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1860 SdHoareTripleChecker+Valid, 4866 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:42:35,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1860 Valid, 4866 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 841 Invalid, 3 Unknown, 0 Unchecked, 16.3s Time] [2024-11-09 05:42:35,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6832 states. [2024-11-09 05:42:36,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6832 to 6832. [2024-11-09 05:42:36,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6832 states, 3992 states have (on average 1.2409819639278556) internal successors, (4954), 4138 states have internal predecessors, (4954), 2281 states have call successors, (2281), 569 states have call predecessors, (2281), 556 states have return successors, (2298), 2215 states have call predecessors, (2298), 2277 states have call successors, (2298) [2024-11-09 05:42:36,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6832 states to 6832 states and 9533 transitions. [2024-11-09 05:42:36,398 INFO L78 Accepts]: Start accepts. Automaton has 6832 states and 9533 transitions. Word has length 151 [2024-11-09 05:42:36,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:42:36,398 INFO L471 AbstractCegarLoop]: Abstraction has 6832 states and 9533 transitions. [2024-11-09 05:42:36,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 05:42:36,399 INFO L276 IsEmpty]: Start isEmpty. Operand 6832 states and 9533 transitions. [2024-11-09 05:42:36,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-09 05:42:36,402 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:42:36,403 INFO L215 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 5, 5, 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] [2024-11-09 05:42:36,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 05:42:36,403 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:42:36,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:42:36,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1362343398, now seen corresponding path program 1 times [2024-11-09 05:42:36,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:42:36,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060260091] [2024-11-09 05:42:36,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:42:36,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:42:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:42:42,295 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2024-11-09 05:42:42,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:42:42,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060260091] [2024-11-09 05:42:42,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060260091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:42:42,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:42:42,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:42:42,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387328149] [2024-11-09 05:42:42,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:42:42,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:42:42,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:42:42,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:42:42,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:42:42,299 INFO L87 Difference]: Start difference. First operand 6832 states and 9533 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-09 05:42:44,367 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 [] [2024-11-09 05:42:46,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:42:48,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:42:58,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:42:58,201 INFO L93 Difference]: Finished difference Result 6838 states and 9538 transitions. [2024-11-09 05:42:58,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:42:58,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 157 [2024-11-09 05:42:58,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:42:58,248 INFO L225 Difference]: With dead ends: 6838 [2024-11-09 05:42:58,248 INFO L226 Difference]: Without dead ends: 6836 [2024-11-09 05:42:58,253 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 [2024-11-09 05:42:58,254 INFO L432 NwaCegarLoop]: 1628 mSDtfsCounter, 1858 mSDsluCounter, 3238 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1859 SdHoareTripleChecker+Valid, 4866 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:42:58,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1859 Valid, 4866 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 841 Invalid, 3 Unknown, 0 Unchecked, 15.5s Time] [2024-11-09 05:42:58,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6836 states. [2024-11-09 05:42:58,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6836 to 6836. [2024-11-09 05:42:58,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6836 states, 3995 states have (on average 1.2408010012515645) internal successors, (4957), 4141 states have internal predecessors, (4957), 2281 states have call successors, (2281), 570 states have call predecessors, (2281), 557 states have return successors, (2298), 2215 states have call predecessors, (2298), 2277 states have call successors, (2298) [2024-11-09 05:42:58,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6836 states to 6836 states and 9536 transitions. [2024-11-09 05:42:58,898 INFO L78 Accepts]: Start accepts. Automaton has 6836 states and 9536 transitions. Word has length 157 [2024-11-09 05:42:58,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:42:58,899 INFO L471 AbstractCegarLoop]: Abstraction has 6836 states and 9536 transitions. [2024-11-09 05:42:58,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-09 05:42:58,899 INFO L276 IsEmpty]: Start isEmpty. Operand 6836 states and 9536 transitions. [2024-11-09 05:42:58,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-09 05:42:58,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:42:58,905 INFO L215 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:42:58,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 05:42:58,906 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:42:58,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:42:58,906 INFO L85 PathProgramCache]: Analyzing trace with hash -419509421, now seen corresponding path program 1 times [2024-11-09 05:42:58,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:42:58,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779600802] [2024-11-09 05:42:58,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:42:58,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:43:05,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:43:06,621 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2024-11-09 05:43:06,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:43:06,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779600802] [2024-11-09 05:43:06,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779600802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:43:06,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:43:06,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:43:06,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438649891] [2024-11-09 05:43:06,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:43:06,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:43:06,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:43:06,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:43:06,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:43:06,624 INFO L87 Difference]: Start difference. First operand 6836 states and 9536 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 05:43:08,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:43:10,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:43:13,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:43:22,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:43:22,185 INFO L93 Difference]: Finished difference Result 6842 states and 9541 transitions. [2024-11-09 05:43:22,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:43:22,189 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 158 [2024-11-09 05:43:22,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:43:22,234 INFO L225 Difference]: With dead ends: 6842 [2024-11-09 05:43:22,235 INFO L226 Difference]: Without dead ends: 6840 [2024-11-09 05:43:22,241 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 [2024-11-09 05:43:22,242 INFO L432 NwaCegarLoop]: 1628 mSDtfsCounter, 1858 mSDsluCounter, 3238 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1859 SdHoareTripleChecker+Valid, 4866 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:43:22,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1859 Valid, 4866 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 841 Invalid, 3 Unknown, 0 Unchecked, 15.1s Time] [2024-11-09 05:43:22,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6840 states. [2024-11-09 05:43:22,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6840 to 6840. [2024-11-09 05:43:22,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6840 states, 3998 states have (on average 1.2406203101550775) internal successors, (4960), 4144 states have internal predecessors, (4960), 2281 states have call successors, (2281), 571 states have call predecessors, (2281), 558 states have return successors, (2298), 2215 states have call predecessors, (2298), 2277 states have call successors, (2298) [2024-11-09 05:43:22,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6840 states to 6840 states and 9539 transitions. [2024-11-09 05:43:22,854 INFO L78 Accepts]: Start accepts. Automaton has 6840 states and 9539 transitions. Word has length 158 [2024-11-09 05:43:22,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:43:22,855 INFO L471 AbstractCegarLoop]: Abstraction has 6840 states and 9539 transitions. [2024-11-09 05:43:22,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 05:43:22,855 INFO L276 IsEmpty]: Start isEmpty. Operand 6840 states and 9539 transitions. [2024-11-09 05:43:22,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-09 05:43:22,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:43:22,860 INFO L215 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 5, 5, 5, 4, 4, 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] [2024-11-09 05:43:22,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 05:43:22,860 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:43:22,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:43:22,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1434932434, now seen corresponding path program 1 times [2024-11-09 05:43:22,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:43:22,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986336489] [2024-11-09 05:43:22,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:43:22,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:43:29,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:43:30,882 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2024-11-09 05:43:30,883 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:43:30,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986336489] [2024-11-09 05:43:30,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986336489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:43:30,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:43:30,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:43:30,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727700017] [2024-11-09 05:43:30,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:43:30,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:43:30,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:43:30,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:43:30,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:43:30,887 INFO L87 Difference]: Start difference. First operand 6840 states and 9539 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-09 05:43:32,961 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 [] [2024-11-09 05:43:35,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:43:37,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:43:42,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:43:48,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:43:48,230 INFO L93 Difference]: Finished difference Result 6846 states and 9544 transitions. [2024-11-09 05:43:48,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:43:48,233 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 166 [2024-11-09 05:43:48,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:43:48,284 INFO L225 Difference]: With dead ends: 6846 [2024-11-09 05:43:48,285 INFO L226 Difference]: Without dead ends: 6844 [2024-11-09 05:43:48,292 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 [2024-11-09 05:43:48,293 INFO L432 NwaCegarLoop]: 1628 mSDtfsCounter, 1856 mSDsluCounter, 3238 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1857 SdHoareTripleChecker+Valid, 4866 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:43:48,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1857 Valid, 4866 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 841 Invalid, 3 Unknown, 0 Unchecked, 16.8s Time] [2024-11-09 05:43:48,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6844 states. [2024-11-09 05:43:48,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6844 to 6844. [2024-11-09 05:43:48,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6844 states, 4001 states have (on average 1.240439890027493) internal successors, (4963), 4147 states have internal predecessors, (4963), 2281 states have call successors, (2281), 572 states have call predecessors, (2281), 559 states have return successors, (2298), 2215 states have call predecessors, (2298), 2277 states have call successors, (2298) [2024-11-09 05:43:49,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6844 states to 6844 states and 9542 transitions. [2024-11-09 05:43:49,139 INFO L78 Accepts]: Start accepts. Automaton has 6844 states and 9542 transitions. Word has length 166 [2024-11-09 05:43:49,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:43:49,140 INFO L471 AbstractCegarLoop]: Abstraction has 6844 states and 9542 transitions. [2024-11-09 05:43:49,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-09 05:43:49,141 INFO L276 IsEmpty]: Start isEmpty. Operand 6844 states and 9542 transitions. [2024-11-09 05:43:49,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-09 05:43:49,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:43:49,152 INFO L215 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 6, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:43:49,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 05:43:49,153 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:43:49,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:43:49,155 INFO L85 PathProgramCache]: Analyzing trace with hash -361608892, now seen corresponding path program 1 times [2024-11-09 05:43:49,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:43:49,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262134764] [2024-11-09 05:43:49,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:43:49,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:43:56,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:43:57,264 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2024-11-09 05:43:57,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:43:57,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262134764] [2024-11-09 05:43:57,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262134764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:43:57,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:43:57,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:43:57,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518313939] [2024-11-09 05:43:57,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:43:57,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:43:57,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:43:57,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:43:57,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:43:57,269 INFO L87 Difference]: Start difference. First operand 6844 states and 9542 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-09 05:43:59,355 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 [] [2024-11-09 05:44:01,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:44:03,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:44:13,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:44:13,140 INFO L93 Difference]: Finished difference Result 6850 states and 9547 transitions. [2024-11-09 05:44:13,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:44:13,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 172 [2024-11-09 05:44:13,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:44:13,185 INFO L225 Difference]: With dead ends: 6850 [2024-11-09 05:44:13,185 INFO L226 Difference]: Without dead ends: 6848 [2024-11-09 05:44:13,191 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 [2024-11-09 05:44:13,192 INFO L432 NwaCegarLoop]: 1628 mSDtfsCounter, 1855 mSDsluCounter, 3238 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1856 SdHoareTripleChecker+Valid, 4866 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:44:13,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1856 Valid, 4866 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 841 Invalid, 3 Unknown, 0 Unchecked, 15.3s Time] [2024-11-09 05:44:13,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6848 states. [2024-11-09 05:44:13,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6848 to 6848. [2024-11-09 05:44:13,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6848 states, 4004 states have (on average 1.2402597402597402) internal successors, (4966), 4150 states have internal predecessors, (4966), 2281 states have call successors, (2281), 573 states have call predecessors, (2281), 560 states have return successors, (2298), 2215 states have call predecessors, (2298), 2277 states have call successors, (2298) [2024-11-09 05:44:13,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6848 states to 6848 states and 9545 transitions. [2024-11-09 05:44:13,903 INFO L78 Accepts]: Start accepts. Automaton has 6848 states and 9545 transitions. Word has length 172 [2024-11-09 05:44:13,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:44:13,904 INFO L471 AbstractCegarLoop]: Abstraction has 6848 states and 9545 transitions. [2024-11-09 05:44:13,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-09 05:44:13,904 INFO L276 IsEmpty]: Start isEmpty. Operand 6848 states and 9545 transitions. [2024-11-09 05:44:13,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-09 05:44:13,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:13,909 INFO L215 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 7, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:44:13,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 05:44:13,910 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:44:13,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:13,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1257459371, now seen corresponding path program 1 times [2024-11-09 05:44:13,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:13,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355393431] [2024-11-09 05:44:13,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:13,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:19,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:20,489 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2024-11-09 05:44:20,489 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:20,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355393431] [2024-11-09 05:44:20,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355393431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:44:20,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:44:20,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:44:20,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877249235] [2024-11-09 05:44:20,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:44:20,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:44:20,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:44:20,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:44:20,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:44:20,492 INFO L87 Difference]: Start difference. First operand 6848 states and 9545 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-09 05:44:22,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:44:24,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:44:27,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:44:32,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:44:38,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:44:38,587 INFO L93 Difference]: Finished difference Result 8054 states and 11056 transitions. [2024-11-09 05:44:38,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:44:38,590 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 173 [2024-11-09 05:44:38,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:44:38,646 INFO L225 Difference]: With dead ends: 8054 [2024-11-09 05:44:38,646 INFO L226 Difference]: Without dead ends: 8052 [2024-11-09 05:44:38,654 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 [2024-11-09 05:44:38,655 INFO L432 NwaCegarLoop]: 1802 mSDtfsCounter, 1437 mSDsluCounter, 4263 mSDsCounter, 0 mSdLazyCounter, 1038 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1438 SdHoareTripleChecker+Valid, 6065 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1038 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:44:38,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1438 Valid, 6065 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1038 Invalid, 3 Unknown, 0 Unchecked, 17.4s Time] [2024-11-09 05:44:38,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8052 states. [2024-11-09 05:44:39,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8052 to 8052. [2024-11-09 05:44:39,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8052 states, 4629 states have (on average 1.2229423201555412) internal successors, (5661), 4782 states have internal predecessors, (5661), 2688 states have call successors, (2688), 745 states have call predecessors, (2688), 732 states have return successors, (2705), 2622 states have call predecessors, (2705), 2684 states have call successors, (2705) [2024-11-09 05:44:39,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8052 states to 8052 states and 11054 transitions. [2024-11-09 05:44:39,537 INFO L78 Accepts]: Start accepts. Automaton has 8052 states and 11054 transitions. Word has length 173 [2024-11-09 05:44:39,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:44:39,537 INFO L471 AbstractCegarLoop]: Abstraction has 8052 states and 11054 transitions. [2024-11-09 05:44:39,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-09 05:44:39,538 INFO L276 IsEmpty]: Start isEmpty. Operand 8052 states and 11054 transitions. [2024-11-09 05:44:39,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-09 05:44:39,544 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:39,545 INFO L215 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:44:39,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 05:44:39,545 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:44:39,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:39,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1764690236, now seen corresponding path program 1 times [2024-11-09 05:44:39,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:39,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225469817] [2024-11-09 05:44:39,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:39,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:45,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:46,481 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2024-11-09 05:44:46,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:46,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225469817] [2024-11-09 05:44:46,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225469817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:44:46,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:44:46,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:44:46,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500141592] [2024-11-09 05:44:46,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:44:46,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:44:46,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:44:46,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:44:46,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:44:46,485 INFO L87 Difference]: Start difference. First operand 8052 states and 11054 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-09 05:44:48,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:44:50,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:44:52,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:44:58,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:45:05,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:45:05,500 INFO L93 Difference]: Finished difference Result 8058 states and 11059 transitions. [2024-11-09 05:45:05,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:45:05,503 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 182 [2024-11-09 05:45:05,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:45:05,566 INFO L225 Difference]: With dead ends: 8058 [2024-11-09 05:45:05,566 INFO L226 Difference]: Without dead ends: 8056 [2024-11-09 05:45:05,575 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 [2024-11-09 05:45:05,576 INFO L432 NwaCegarLoop]: 1628 mSDtfsCounter, 1853 mSDsluCounter, 3238 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1854 SdHoareTripleChecker+Valid, 4866 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:45:05,577 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1854 Valid, 4866 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 841 Invalid, 3 Unknown, 0 Unchecked, 18.2s Time] [2024-11-09 05:45:05,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8056 states. [2024-11-09 05:45:06,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8056 to 8056. [2024-11-09 05:45:06,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8056 states, 4632 states have (on average 1.2227979274611398) internal successors, (5664), 4785 states have internal predecessors, (5664), 2688 states have call successors, (2688), 746 states have call predecessors, (2688), 733 states have return successors, (2705), 2622 states have call predecessors, (2705), 2684 states have call successors, (2705) [2024-11-09 05:45:06,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8056 states to 8056 states and 11057 transitions. [2024-11-09 05:45:06,554 INFO L78 Accepts]: Start accepts. Automaton has 8056 states and 11057 transitions. Word has length 182 [2024-11-09 05:45:06,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:45:06,555 INFO L471 AbstractCegarLoop]: Abstraction has 8056 states and 11057 transitions. [2024-11-09 05:45:06,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-09 05:45:06,555 INFO L276 IsEmpty]: Start isEmpty. Operand 8056 states and 11057 transitions. [2024-11-09 05:45:06,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-09 05:45:06,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:45:06,559 INFO L215 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:45:06,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 05:45:06,559 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:45:06,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:45:06,560 INFO L85 PathProgramCache]: Analyzing trace with hash -585969781, now seen corresponding path program 1 times [2024-11-09 05:45:06,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:45:06,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677028724] [2024-11-09 05:45:06,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:45:06,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:45:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:45:12,584 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-09 05:45:12,584 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:45:12,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677028724] [2024-11-09 05:45:12,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677028724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:45:12,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:45:12,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:45:12,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085622080] [2024-11-09 05:45:12,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:45:12,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:45:12,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:45:12,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:45:12,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:45:12,588 INFO L87 Difference]: Start difference. First operand 8056 states and 11057 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-09 05:45:14,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:45:16,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:45:26,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:45:26,750 INFO L93 Difference]: Finished difference Result 18951 states and 26019 transitions. [2024-11-09 05:45:26,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:45:26,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 190 [2024-11-09 05:45:26,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:45:26,832 INFO L225 Difference]: With dead ends: 18951 [2024-11-09 05:45:26,833 INFO L226 Difference]: Without dead ends: 10970 [2024-11-09 05:45:26,884 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 [2024-11-09 05:45:26,885 INFO L432 NwaCegarLoop]: 2713 mSDtfsCounter, 1360 mSDsluCounter, 1582 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1360 SdHoareTripleChecker+Valid, 4295 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:45:26,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1360 Valid, 4295 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 793 Invalid, 2 Unknown, 0 Unchecked, 13.1s Time] [2024-11-09 05:45:26,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10970 states. [2024-11-09 05:45:28,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10970 to 10907. [2024-11-09 05:45:28,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10907 states, 6295 states have (on average 1.2217633042096903) internal successors, (7691), 6498 states have internal predecessors, (7691), 3612 states have call successors, (3612), 1015 states have call predecessors, (3612), 997 states have return successors, (3630), 3523 states have call predecessors, (3630), 3608 states have call successors, (3630) [2024-11-09 05:45:28,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10907 states to 10907 states and 14933 transitions. [2024-11-09 05:45:28,474 INFO L78 Accepts]: Start accepts. Automaton has 10907 states and 14933 transitions. Word has length 190 [2024-11-09 05:45:28,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:45:28,475 INFO L471 AbstractCegarLoop]: Abstraction has 10907 states and 14933 transitions. [2024-11-09 05:45:28,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2024-11-09 05:45:28,475 INFO L276 IsEmpty]: Start isEmpty. Operand 10907 states and 14933 transitions. [2024-11-09 05:45:28,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-09 05:45:28,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:45:28,480 INFO L215 NwaCegarLoop]: trace histogram [12, 9, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:45:28,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 05:45:28,481 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:45:28,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:45:28,482 INFO L85 PathProgramCache]: Analyzing trace with hash 2060222315, now seen corresponding path program 1 times [2024-11-09 05:45:28,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:45:28,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708559497] [2024-11-09 05:45:28,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:45:28,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:45:34,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:45:35,078 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2024-11-09 05:45:35,078 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:45:35,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708559497] [2024-11-09 05:45:35,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708559497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:45:35,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:45:35,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:45:35,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113486942] [2024-11-09 05:45:35,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:45:35,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:45:35,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:45:35,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:45:35,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:45:35,082 INFO L87 Difference]: Start difference. First operand 10907 states and 14933 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-09 05:45:37,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:45:39,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:45:41,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:45:52,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:45:52,751 INFO L93 Difference]: Finished difference Result 10913 states and 14938 transitions. [2024-11-09 05:45:52,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:45:52,754 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 183 [2024-11-09 05:45:52,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:45:52,799 INFO L225 Difference]: With dead ends: 10913 [2024-11-09 05:45:52,799 INFO L226 Difference]: Without dead ends: 10911 [2024-11-09 05:45:52,807 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 [2024-11-09 05:45:52,808 INFO L432 NwaCegarLoop]: 1628 mSDtfsCounter, 1853 mSDsluCounter, 3238 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1854 SdHoareTripleChecker+Valid, 4866 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:45:52,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1854 Valid, 4866 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 841 Invalid, 3 Unknown, 0 Unchecked, 16.7s Time] [2024-11-09 05:45:52,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10911 states. [2024-11-09 05:45:53,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10911 to 10911. [2024-11-09 05:45:53,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10911 states, 6298 states have (on average 1.221657669101302) internal successors, (7694), 6501 states have internal predecessors, (7694), 3612 states have call successors, (3612), 1016 states have call predecessors, (3612), 998 states have return successors, (3630), 3523 states have call predecessors, (3630), 3608 states have call successors, (3630) [2024-11-09 05:45:53,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10911 states to 10911 states and 14936 transitions. [2024-11-09 05:45:53,855 INFO L78 Accepts]: Start accepts. Automaton has 10911 states and 14936 transitions. Word has length 183 [2024-11-09 05:45:53,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:45:53,856 INFO L471 AbstractCegarLoop]: Abstraction has 10911 states and 14936 transitions. [2024-11-09 05:45:53,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-09 05:45:53,856 INFO L276 IsEmpty]: Start isEmpty. Operand 10911 states and 14936 transitions. [2024-11-09 05:45:53,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-09 05:45:53,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:45:53,859 INFO L215 NwaCegarLoop]: trace histogram [12, 10, 9, 9, 8, 8, 8, 8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:45:53,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 05:45:53,860 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:45:53,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:45:53,861 INFO L85 PathProgramCache]: Analyzing trace with hash -919703661, now seen corresponding path program 1 times [2024-11-09 05:45:53,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:45:53,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863864661] [2024-11-09 05:45:53,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:45:53,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:45:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:46:00,438 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 471 trivial. 0 not checked. [2024-11-09 05:46:00,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:46:00,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863864661] [2024-11-09 05:46:00,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863864661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:46:00,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:46:00,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:46:00,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289661886] [2024-11-09 05:46:00,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:46:00,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:46:00,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:46:00,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:46:00,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:46:00,443 INFO L87 Difference]: Start difference. First operand 10911 states and 14936 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-09 05:46:02,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:46:04,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:46:06,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:46:13,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:46:17,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:46:17,750 INFO L93 Difference]: Finished difference Result 10917 states and 14941 transitions. [2024-11-09 05:46:17,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:46:17,753 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 188 [2024-11-09 05:46:17,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:46:17,805 INFO L225 Difference]: With dead ends: 10917 [2024-11-09 05:46:17,805 INFO L226 Difference]: Without dead ends: 10915 [2024-11-09 05:46:17,810 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 [2024-11-09 05:46:17,811 INFO L432 NwaCegarLoop]: 1628 mSDtfsCounter, 1852 mSDsluCounter, 3238 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1853 SdHoareTripleChecker+Valid, 4866 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:46:17,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1853 Valid, 4866 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 841 Invalid, 3 Unknown, 0 Unchecked, 16.3s Time] [2024-11-09 05:46:17,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10915 states. [2024-11-09 05:46:18,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10915 to 10915. [2024-11-09 05:46:18,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10915 states, 6301 states have (on average 1.2215521345818123) internal successors, (7697), 6504 states have internal predecessors, (7697), 3612 states have call successors, (3612), 1017 states have call predecessors, (3612), 999 states have return successors, (3630), 3523 states have call predecessors, (3630), 3608 states have call successors, (3630) [2024-11-09 05:46:18,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10915 states to 10915 states and 14939 transitions. [2024-11-09 05:46:18,878 INFO L78 Accepts]: Start accepts. Automaton has 10915 states and 14939 transitions. Word has length 188 [2024-11-09 05:46:18,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:46:18,878 INFO L471 AbstractCegarLoop]: Abstraction has 10915 states and 14939 transitions. [2024-11-09 05:46:18,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-09 05:46:18,879 INFO L276 IsEmpty]: Start isEmpty. Operand 10915 states and 14939 transitions. [2024-11-09 05:46:18,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-09 05:46:18,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:46:18,881 INFO L215 NwaCegarLoop]: trace histogram [12, 11, 10, 10, 8, 8, 8, 8, 8, 8, 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] [2024-11-09 05:46:18,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 05:46:18,882 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:46:18,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:46:18,883 INFO L85 PathProgramCache]: Analyzing trace with hash -467933650, now seen corresponding path program 1 times [2024-11-09 05:46:18,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:46:18,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231271061] [2024-11-09 05:46:18,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:46:18,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:46:23,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:46:24,681 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 514 trivial. 0 not checked. [2024-11-09 05:46:24,681 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:46:24,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231271061] [2024-11-09 05:46:24,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231271061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:46:24,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:46:24,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:46:24,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244869074] [2024-11-09 05:46:24,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:46:24,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:46:24,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:46:24,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:46:24,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:46:24,684 INFO L87 Difference]: Start difference. First operand 10915 states and 14939 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-09 05:46:26,755 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 [] [2024-11-09 05:46:28,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:46:31,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:46:42,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:46:42,453 INFO L93 Difference]: Finished difference Result 10921 states and 14944 transitions. [2024-11-09 05:46:42,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:46:42,456 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 196 [2024-11-09 05:46:42,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:46:42,493 INFO L225 Difference]: With dead ends: 10921 [2024-11-09 05:46:42,493 INFO L226 Difference]: Without dead ends: 10917 [2024-11-09 05:46:42,498 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 [2024-11-09 05:46:42,499 INFO L432 NwaCegarLoop]: 1628 mSDtfsCounter, 1850 mSDsluCounter, 3238 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1851 SdHoareTripleChecker+Valid, 4866 SdHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:46:42,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1851 Valid, 4866 Invalid, 844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 841 Invalid, 3 Unknown, 0 Unchecked, 16.7s Time] [2024-11-09 05:46:42,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10917 states. [2024-11-09 05:46:43,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10917 to 10917. [2024-11-09 05:46:43,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10917 states, 6303 states have (on average 1.2213231794383628) internal successors, (7698), 6505 states have internal predecessors, (7698), 3612 states have call successors, (3612), 1018 states have call predecessors, (3612), 999 states have return successors, (3630), 3523 states have call predecessors, (3630), 3608 states have call successors, (3630) [2024-11-09 05:46:43,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10917 states to 10917 states and 14940 transitions. [2024-11-09 05:46:43,560 INFO L78 Accepts]: Start accepts. Automaton has 10917 states and 14940 transitions. Word has length 196 [2024-11-09 05:46:43,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:46:43,561 INFO L471 AbstractCegarLoop]: Abstraction has 10917 states and 14940 transitions. [2024-11-09 05:46:43,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-09 05:46:43,561 INFO L276 IsEmpty]: Start isEmpty. Operand 10917 states and 14940 transitions. [2024-11-09 05:46:43,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-09 05:46:43,562 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:46:43,563 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 8, 8, 8, 8, 8, 8, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:46:43,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 05:46:43,563 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:46:43,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:46:43,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1770963396, now seen corresponding path program 1 times [2024-11-09 05:46:43,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:46:43,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948719444] [2024-11-09 05:46:43,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:46:43,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:46:48,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:46:49,847 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2024-11-09 05:46:49,848 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:46:49,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948719444] [2024-11-09 05:46:49,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948719444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:46:49,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:46:49,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:46:49,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71303742] [2024-11-09 05:46:49,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:46:49,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:46:49,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:46:49,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:46:49,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:46:49,851 INFO L87 Difference]: Start difference. First operand 10917 states and 14940 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-09 05:46:51,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:46:54,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:46:56,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:47:05,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:47:05,889 INFO L93 Difference]: Finished difference Result 10917 states and 14940 transitions. [2024-11-09 05:47:05,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:47:05,892 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 202 [2024-11-09 05:47:05,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:47:05,932 INFO L225 Difference]: With dead ends: 10917 [2024-11-09 05:47:05,933 INFO L226 Difference]: Without dead ends: 10762 [2024-11-09 05:47:05,941 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 [2024-11-09 05:47:05,941 INFO L432 NwaCegarLoop]: 1626 mSDtfsCounter, 1846 mSDsluCounter, 3236 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1846 SdHoareTripleChecker+Valid, 4862 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:47:05,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1846 Valid, 4862 Invalid, 838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 835 Invalid, 3 Unknown, 0 Unchecked, 15.0s Time] [2024-11-09 05:47:05,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10762 states. [2024-11-09 05:47:06,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10762 to 10762. [2024-11-09 05:47:06,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10762 states, 6251 states have (on average 1.2174052151655734) internal successors, (7610), 6417 states have internal predecessors, (7610), 3525 states have call successors, (3525), 993 states have call predecessors, (3525), 984 states have return successors, (3547), 3481 states have call predecessors, (3547), 3525 states have call successors, (3547) [2024-11-09 05:47:07,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10762 states to 10762 states and 14682 transitions. [2024-11-09 05:47:07,027 INFO L78 Accepts]: Start accepts. Automaton has 10762 states and 14682 transitions. Word has length 202 [2024-11-09 05:47:07,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:47:07,028 INFO L471 AbstractCegarLoop]: Abstraction has 10762 states and 14682 transitions. [2024-11-09 05:47:07,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-09 05:47:07,028 INFO L276 IsEmpty]: Start isEmpty. Operand 10762 states and 14682 transitions. [2024-11-09 05:47:07,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-09 05:47:07,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:47:07,032 INFO L215 NwaCegarLoop]: trace histogram [14, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2024-11-09 05:47:07,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 05:47:07,032 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:47:07,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:47:07,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1822347204, now seen corresponding path program 1 times [2024-11-09 05:47:07,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:47:07,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371674657] [2024-11-09 05:47:07,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:07,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:47:12,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:47:14,333 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 464 trivial. 0 not checked. [2024-11-09 05:47:14,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:47:14,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371674657] [2024-11-09 05:47:14,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371674657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:47:14,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:47:14,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:47:14,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985254599] [2024-11-09 05:47:14,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:47:14,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:47:14,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:47:14,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:47:14,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:47:14,337 INFO L87 Difference]: Start difference. First operand 10762 states and 14682 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-09 05:47:16,405 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 [] [2024-11-09 05:47:18,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:47:20,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:47:32,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:47:32,604 INFO L93 Difference]: Finished difference Result 10762 states and 14682 transitions. [2024-11-09 05:47:32,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:47:32,609 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 252 [2024-11-09 05:47:32,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:47:32,669 INFO L225 Difference]: With dead ends: 10762 [2024-11-09 05:47:32,670 INFO L226 Difference]: Without dead ends: 10760 [2024-11-09 05:47:32,679 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:47:32,679 INFO L432 NwaCegarLoop]: 1752 mSDtfsCounter, 1354 mSDsluCounter, 4180 mSDsCounter, 0 mSdLazyCounter, 1018 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1355 SdHoareTripleChecker+Valid, 5932 SdHoareTripleChecker+Invalid, 1022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1018 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:47:32,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1355 Valid, 5932 Invalid, 1022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1018 Invalid, 3 Unknown, 0 Unchecked, 17.1s Time] [2024-11-09 05:47:32,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10760 states. [2024-11-09 05:47:33,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10760 to 10760. [2024-11-09 05:47:33,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10760 states, 6250 states have (on average 1.21584) internal successors, (7599), 6415 states have internal predecessors, (7599), 3525 states have call successors, (3525), 993 states have call predecessors, (3525), 984 states have return successors, (3547), 3481 states have call predecessors, (3547), 3525 states have call successors, (3547) [2024-11-09 05:47:33,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10760 states to 10760 states and 14671 transitions. [2024-11-09 05:47:33,859 INFO L78 Accepts]: Start accepts. Automaton has 10760 states and 14671 transitions. Word has length 252 [2024-11-09 05:47:33,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:47:33,860 INFO L471 AbstractCegarLoop]: Abstraction has 10760 states and 14671 transitions. [2024-11-09 05:47:33,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-09 05:47:33,860 INFO L276 IsEmpty]: Start isEmpty. Operand 10760 states and 14671 transitions. [2024-11-09 05:47:33,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-09 05:47:33,869 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:47:33,869 INFO L215 NwaCegarLoop]: trace histogram [16, 11, 11, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 05:47:33,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 05:47:33,870 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 05:47:33,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:47:33,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1579672408, now seen corresponding path program 1 times [2024-11-09 05:47:33,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:47:33,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421117898] [2024-11-09 05:47:33,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:47:33,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:47:39,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:47:40,809 INFO L134 CoverageAnalysis]: Checked inductivity of 616 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2024-11-09 05:47:40,810 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:47:40,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421117898] [2024-11-09 05:47:40,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421117898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:47:40,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:47:40,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:47:40,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570569181] [2024-11-09 05:47:40,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:47:40,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:47:40,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:47:40,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:47:40,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:47:40,813 INFO L87 Difference]: Start difference. First operand 10760 states and 14671 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2024-11-09 05:47:42,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:47:45,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:47:47,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:47:49,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:48:02,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:48:02,314 INFO L93 Difference]: Finished difference Result 10760 states and 14671 transitions. [2024-11-09 05:48:02,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:48:02,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 295 [2024-11-09 05:48:02,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:48:02,327 INFO L225 Difference]: With dead ends: 10760 [2024-11-09 05:48:02,327 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 05:48:02,352 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 [2024-11-09 05:48:02,353 INFO L432 NwaCegarLoop]: 1711 mSDtfsCounter, 781 mSDsluCounter, 4625 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 6336 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:48:02,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [782 Valid, 6336 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1147 Invalid, 4 Unknown, 0 Unchecked, 20.4s Time] [2024-11-09 05:48:02,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 05:48:02,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 05:48:02,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:48:02,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 05:48:02,362 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 295 [2024-11-09 05:48:02,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:48:02,363 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 05:48:02,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (40), 3 states have call predecessors, (40), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2024-11-09 05:48:02,363 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 05:48:02,363 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 05:48:02,366 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-11-09 05:48:02,367 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2024-11-09 05:48:02,367 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2024-11-09 05:48:02,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 05:48:02,369 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:48:02,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 05:48:36,850 WARN L286 SmtUtils]: Spent 5.47s on a formula simplification. DAG size of input: 91 DAG size of output: 30 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-09 05:48:57,857 WARN L286 SmtUtils]: Spent 5.66s on a formula simplification. DAG size of input: 93 DAG size of output: 30 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-09 05:49:07,285 WARN L286 SmtUtils]: Spent 7.94s on a formula simplification. DAG size of input: 121 DAG size of output: 30 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-09 05:49:13,213 WARN L286 SmtUtils]: Spent 5.91s on a formula simplification. DAG size of input: 93 DAG size of output: 30 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-09 05:49:40,991 WARN L286 SmtUtils]: Spent 5.31s on a formula simplification. DAG size of input: 93 DAG size of output: 30 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-09 05:49:53,960 WARN L286 SmtUtils]: Spent 5.44s on a formula simplification. DAG size of input: 93 DAG size of output: 30 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-09 05:49:59,639 WARN L286 SmtUtils]: Spent 5.67s on a formula simplification. DAG size of input: 93 DAG size of output: 30 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-09 05:50:15,442 WARN L286 SmtUtils]: Spent 5.81s on a formula simplification. DAG size of input: 93 DAG size of output: 30 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-09 05:50:21,228 WARN L286 SmtUtils]: Spent 5.76s on a formula simplification. DAG size of input: 95 DAG size of output: 30 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-09 05:50:26,824 WARN L286 SmtUtils]: Spent 5.57s on a formula simplification. DAG size of input: 93 DAG size of output: 30 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-09 05:51:23,733 WARN L286 SmtUtils]: Spent 5.83s on a formula simplification. DAG size of input: 93 DAG size of output: 30 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-09 05:52:00,261 WARN L286 SmtUtils]: Spent 5.40s on a formula simplification. DAG size of input: 93 DAG size of output: 30 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-09 05:52:54,718 WARN L286 SmtUtils]: Spent 5.44s on a formula simplification. DAG size of input: 93 DAG size of output: 30 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-09 05:53:39,437 WARN L286 SmtUtils]: Spent 5.64s on a formula simplification. DAG size of input: 95 DAG size of output: 30 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-09 05:53:50,529 WARN L286 SmtUtils]: Spent 5.62s on a formula simplification. DAG size of input: 93 DAG size of output: 30 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter)