./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-dlink-dl2k.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099a8d4e-af8f-4708-a19d-9cdd1734dc3a/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099a8d4e-af8f-4708-a19d-9cdd1734dc3a/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_099a8d4e-af8f-4708-a19d-9cdd1734dc3a/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099a8d4e-af8f-4708-a19d-9cdd1734dc3a/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-dlink-dl2k.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099a8d4e-af8f-4708-a19d-9cdd1734dc3a/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_099a8d4e-af8f-4708-a19d-9cdd1734dc3a/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 e373372610053a8b3f90a6fe69a2e2f77f1b445737e9545423fdaf4f64c3f09c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:05:45,732 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:05:45,842 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099a8d4e-af8f-4708-a19d-9cdd1734dc3a/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 06:05:45,852 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:05:45,853 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:05:45,909 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:05:45,910 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:05:45,910 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:05:45,911 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:05:45,911 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:05:45,912 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:05:45,912 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:05:45,916 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:05:45,917 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:05:45,920 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:05:45,921 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:05:45,921 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:05:45,922 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:05:45,922 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:05:45,923 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:05:45,923 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:05:45,924 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:05:45,928 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:05:45,929 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:05:45,929 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:05:45,929 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:05:45,930 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:05:45,930 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:05:45,931 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:05:45,935 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:05:45,935 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:05:45,936 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:05:45,936 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:05:45,936 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:05:45,937 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:05:45,937 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:05:45,938 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:05:45,939 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:05:45,939 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:05:45,940 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:05:45,941 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:05:45,942 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:05:45,942 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:05:45,943 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:05:45,943 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_099a8d4e-af8f-4708-a19d-9cdd1734dc3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099a8d4e-af8f-4708-a19d-9cdd1734dc3a/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e373372610053a8b3f90a6fe69a2e2f77f1b445737e9545423fdaf4f64c3f09c [2024-11-09 06:05:46,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:05:46,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:05:46,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:05:46,313 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:05:46,314 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:05:46,315 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099a8d4e-af8f-4708-a19d-9cdd1734dc3a/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i Unable to find full path for "g++" [2024-11-09 06:05:48,750 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:05:49,387 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:05:49,388 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099a8d4e-af8f-4708-a19d-9cdd1734dc3a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i [2024-11-09 06:05:49,455 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099a8d4e-af8f-4708-a19d-9cdd1734dc3a/bin/utaipan-verify-YMUCfTKeje/data/abcad4c55/72fc7be96bd349fe8ce3a8c72e6d04a3/FLAG407606874 [2024-11-09 06:05:49,828 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099a8d4e-af8f-4708-a19d-9cdd1734dc3a/bin/utaipan-verify-YMUCfTKeje/data/abcad4c55/72fc7be96bd349fe8ce3a8c72e6d04a3 [2024-11-09 06:05:49,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:05:49,831 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:05:49,833 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:05:49,833 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:05:49,840 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:05:49,840 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:05:49" (1/1) ... [2024-11-09 06:05:49,841 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fcf0471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:05:49, skipping insertion in model container [2024-11-09 06:05:49,841 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:05:49" (1/1) ... [2024-11-09 06:05:50,033 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:05:52,981 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_099a8d4e-af8f-4708-a19d-9cdd1734dc3a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[330704,330717] [2024-11-09 06:05:52,985 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_099a8d4e-af8f-4708-a19d-9cdd1734dc3a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[330873,330886] [2024-11-09 06:05:52,986 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_099a8d4e-af8f-4708-a19d-9cdd1734dc3a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[331040,331053] [2024-11-09 06:05:52,987 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_099a8d4e-af8f-4708-a19d-9cdd1734dc3a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[331208,331221] [2024-11-09 06:05:53,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:05:53,073 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:05:53,225 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"); [5240] [2024-11-09 06:05:53,227 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)); [5247] [2024-11-09 06:05:53,227 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5254] [2024-11-09 06:05:53,232 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)); [5292-5293] [2024-11-09 06:05:53,236 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"); [5298-5300] [2024-11-09 06:05:53,248 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)); [5478-5479] [2024-11-09 06:05:53,250 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)); [5512-5513] [2024-11-09 06:05:53,252 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" (103), "i" (12UL)); [5549-5550] [2024-11-09 06:05:53,253 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" (115), "i" (12UL)); [5586-5587] [2024-11-09 06:05:53,472 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_099a8d4e-af8f-4708-a19d-9cdd1734dc3a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[330704,330717] [2024-11-09 06:05:53,473 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_099a8d4e-af8f-4708-a19d-9cdd1734dc3a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[330873,330886] [2024-11-09 06:05:53,474 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_099a8d4e-af8f-4708-a19d-9cdd1734dc3a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[331040,331053] [2024-11-09 06:05:53,474 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_099a8d4e-af8f-4708-a19d-9cdd1734dc3a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i[331208,331221] [2024-11-09 06:05:53,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:05:53,684 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:05:53,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:05:53 WrapperNode [2024-11-09 06:05:53,685 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:05:53,687 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:05:53,687 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:05:53,687 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:05:53,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:05:53" (1/1) ... [2024-11-09 06:05:53,782 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:05:53" (1/1) ... [2024-11-09 06:05:54,047 INFO L138 Inliner]: procedures = 423, calls = 1892, calls flagged for inlining = 204, calls inlined = 187, statements flattened = 5680 [2024-11-09 06:05:54,048 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:05:54,049 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:05:54,049 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:05:54,049 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:05:54,060 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:05:53" (1/1) ... [2024-11-09 06:05:54,060 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:05:53" (1/1) ... [2024-11-09 06:05:54,114 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:05:53" (1/1) ... [2024-11-09 06:05:54,114 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:05:53" (1/1) ... [2024-11-09 06:05:54,258 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:05:53" (1/1) ... [2024-11-09 06:05:54,295 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:05:53" (1/1) ... [2024-11-09 06:05:54,326 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:05:53" (1/1) ... [2024-11-09 06:05:54,349 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:05:53" (1/1) ... [2024-11-09 06:05:54,389 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:05:54,391 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:05:54,391 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:05:54,391 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:05:54,392 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:05:53" (1/1) ... [2024-11-09 06:05:54,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:05:54,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099a8d4e-af8f-4708-a19d-9cdd1734dc3a/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:05:54,427 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099a8d4e-af8f-4708-a19d-9cdd1734dc3a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:05:54,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_099a8d4e-af8f-4708-a19d-9cdd1734dc3a/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:05:54,462 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2024-11-09 06:05:54,462 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2024-11-09 06:05:54,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-09 06:05:54,463 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-09 06:05:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 06:05:54,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 06:05:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-09 06:05:54,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-09 06:05:54,464 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2024-11-09 06:05:54,464 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2024-11-09 06:05:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2024-11-09 06:05:54,465 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2024-11-09 06:05:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2024-11-09 06:05:54,465 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2024-11-09 06:05:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure desc_to_dma [2024-11-09 06:05:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure desc_to_dma [2024-11-09 06:05:54,467 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2024-11-09 06:05:54,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2024-11-09 06:05:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2024-11-09 06:05:54,468 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2024-11-09 06:05:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-09 06:05:54,468 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-09 06:05:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-11-09 06:05:54,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-11-09 06:05:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure mii_write [2024-11-09 06:05:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_write [2024-11-09 06:05:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2024-11-09 06:05:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2024-11-09 06:05:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2024-11-09 06:05:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2024-11-09 06:05:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2024-11-09 06:05:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2024-11-09 06:05:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-09 06:05:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-09 06:05:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-09 06:05:54,470 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-09 06:05:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast [2024-11-09 06:05:54,470 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast [2024-11-09 06:05:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2024-11-09 06:05:54,470 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2024-11-09 06:05:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:05:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2024-11-09 06:05:54,470 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2024-11-09 06:05:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-09 06:05:54,470 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-09 06:05:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-09 06:05:54,471 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-09 06:05:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-09 06:05:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2024-11-09 06:05:54,471 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2024-11-09 06:05:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-11-09 06:05:54,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-11-09 06:05:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 06:05:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-11-09 06:05:54,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-11-09 06:05:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:05:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2024-11-09 06:05:54,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2024-11-09 06:05:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-09 06:05:54,472 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-09 06:05:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2024-11-09 06:05:54,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2024-11-09 06:05:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2024-11-09 06:05:54,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2024-11-09 06:05:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2024-11-09 06:05:54,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2024-11-09 06:05:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2024-11-09 06:05:54,475 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2024-11-09 06:05:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2024-11-09 06:05:54,475 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2024-11-09 06:05:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-09 06:05:54,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-09 06:05:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 06:05:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2024-11-09 06:05:54,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2024-11-09 06:05:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2024-11-09 06:05:54,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2024-11-09 06:05:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure rio_close [2024-11-09 06:05:54,478 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_close [2024-11-09 06:05:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:05:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure mii_getbit [2024-11-09 06:05:54,478 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_getbit [2024-11-09 06:05:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-09 06:05:54,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-09 06:05:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-09 06:05:54,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-09 06:05:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 06:05:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2024-11-09 06:05:54,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2024-11-09 06:05:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-09 06:05:54,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-09 06:05:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-11-09 06:05:54,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-11-09 06:05:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure mii_read [2024-11-09 06:05:54,480 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_read [2024-11-09 06:05:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2024-11-09 06:05:54,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2024-11-09 06:05:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2024-11-09 06:05:54,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2024-11-09 06:05:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2024-11-09 06:05:54,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2024-11-09 06:05:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-11-09 06:05:54,482 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-11-09 06:05:54,483 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-11-09 06:05:54,483 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-11-09 06:05:54,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2024-11-09 06:05:54,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2024-11-09 06:05:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:05:54,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:05:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-09 06:05:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 06:05:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-09 06:05:54,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-09 06:05:54,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-09 06:05:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-09 06:05:54,485 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2024-11-09 06:05:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2024-11-09 06:05:54,485 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats [2024-11-09 06:05:54,485 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats [2024-11-09 06:05:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2024-11-09 06:05:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2024-11-09 06:05:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2024-11-09 06:05:54,486 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2024-11-09 06:05:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2024-11-09 06:05:54,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2024-11-09 06:05:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-09 06:05:54,487 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-09 06:05:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2024-11-09 06:05:54,487 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2024-11-09 06:05:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2024-11-09 06:05:54,488 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2024-11-09 06:05:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-11-09 06:05:54,488 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-11-09 06:05:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:05:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_tx_lock_of_netdev_private [2024-11-09 06:05:54,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_tx_lock_of_netdev_private [2024-11-09 06:05:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure rio_open [2024-11-09 06:05:54,489 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_open [2024-11-09 06:05:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 06:05:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2024-11-09 06:05:54,489 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2024-11-09 06:05:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_netdev_private [2024-11-09 06:05:54,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_netdev_private [2024-11-09 06:05:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 06:05:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-09 06:05:54,490 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-09 06:05:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2024-11-09 06:05:54,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2024-11-09 06:05:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-09 06:05:54,541 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-09 06:05:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-11-09 06:05:54,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-11-09 06:05:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_rx_lock_of_netdev_private [2024-11-09 06:05:54,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_rx_lock_of_netdev_private [2024-11-09 06:05:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-09 06:05:54,542 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-09 06:05:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-11-09 06:05:54,542 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-11-09 06:05:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure rio_free_tx [2024-11-09 06:05:54,542 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_free_tx [2024-11-09 06:05:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure rio_tx_timeout [2024-11-09 06:05:54,543 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_tx_timeout [2024-11-09 06:05:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_rx_lock_of_netdev_private [2024-11-09 06:05:54,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_rx_lock_of_netdev_private [2024-11-09 06:05:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure rio_remove1 [2024-11-09 06:05:54,543 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_remove1 [2024-11-09 06:05:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:05:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-09 06:05:54,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-09 06:05:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rio_driver_exit_14_2 [2024-11-09 06:05:54,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rio_driver_exit_14_2 [2024-11-09 06:05:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure mii_send_bits [2024-11-09 06:05:54,544 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_send_bits [2024-11-09 06:05:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-11-09 06:05:54,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-11-09 06:05:54,545 INFO L130 BoogieDeclarations]: Found specification of procedure mii_set_media [2024-11-09 06:05:54,548 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_set_media [2024-11-09 06:05:54,548 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2024-11-09 06:05:54,549 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2024-11-09 06:05:54,549 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-09 06:05:54,549 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-09 06:05:54,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:05:54,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-11-09 06:05:54,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-11-09 06:05:55,406 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:05:55,409 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:05:55,507 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-09 06:06:07,543 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-11-09 06:06:08,814 INFO L? ?]: Removed 2446 outVars from TransFormulas that were not future-live. [2024-11-09 06:06:08,815 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:06:12,347 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:06:12,348 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-09 06:06:12,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:06:12 BoogieIcfgContainer [2024-11-09 06:06:12,348 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:06:12,351 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:06:12,351 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:06:12,355 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:06:12,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:05:49" (1/3) ... [2024-11-09 06:06:12,356 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58ebd168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:06:12, skipping insertion in model container [2024-11-09 06:06:12,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:05:53" (2/3) ... [2024-11-09 06:06:12,356 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58ebd168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:06:12, skipping insertion in model container [2024-11-09 06:06:12,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:06:12" (3/3) ... [2024-11-09 06:06:12,358 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dlink-dl2k.cil.i [2024-11-09 06:06:12,384 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:06:12,388 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-09 06:06:12,556 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:06:12,563 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;@473b46e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:06:12,563 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-09 06:06:12,576 INFO L276 IsEmpty]: Start isEmpty. Operand has 1489 states, 878 states have (on average 1.275626423690205) internal successors, (1120), 907 states have internal predecessors, (1120), 530 states have call successors, (530), 84 states have call predecessors, (530), 83 states have return successors, (524), 521 states have call predecessors, (524), 524 states have call successors, (524) [2024-11-09 06:06:12,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-09 06:06:12,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:06:12,591 INFO L215 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:12,591 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 06:06:12,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:06:12,597 INFO L85 PathProgramCache]: Analyzing trace with hash 64789891, now seen corresponding path program 1 times [2024-11-09 06:06:12,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:06:12,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68099696] [2024-11-09 06:06:12,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:06:12,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:06:19,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:06:19,833 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2024-11-09 06:06:19,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:06:19,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68099696] [2024-11-09 06:06:19,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68099696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:06:19,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:06:19,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:06:19,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116561571] [2024-11-09 06:06:19,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:06:19,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:06:19,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:06:19,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:06:19,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:06:19,886 INFO L87 Difference]: Start difference. First operand has 1489 states, 878 states have (on average 1.275626423690205) internal successors, (1120), 907 states have internal predecessors, (1120), 530 states have call successors, (530), 84 states have call predecessors, (530), 83 states have return successors, (524), 521 states have call predecessors, (524), 524 states have call successors, (524) Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 06:06:21,989 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 06:06:24,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:06:28,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:06:33,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:06:35,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:06:37,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:06:37,280 INFO L93 Difference]: Finished difference Result 4324 states and 6367 transitions. [2024-11-09 06:06:37,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:06:37,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 111 [2024-11-09 06:06:37,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:06:37,332 INFO L225 Difference]: With dead ends: 4324 [2024-11-09 06:06:37,332 INFO L226 Difference]: Without dead ends: 2844 [2024-11-09 06:06:37,349 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 06:06:37,354 INFO L432 NwaCegarLoop]: 1846 mSDtfsCounter, 2025 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 7 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2025 SdHoareTripleChecker+Valid, 3648 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:06:37,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2025 Valid, 3648 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 616 Invalid, 5 Unknown, 0 Unchecked, 17.0s Time] [2024-11-09 06:06:37,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2844 states. [2024-11-09 06:06:37,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2844 to 2840. [2024-11-09 06:06:37,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2840 states, 1679 states have (on average 1.2686122692078619) internal successors, (2130), 1730 states have internal predecessors, (2130), 996 states have call successors, (996), 163 states have call predecessors, (996), 162 states have return successors, (992), 986 states have call predecessors, (992), 992 states have call successors, (992) [2024-11-09 06:06:37,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2840 states to 2840 states and 4118 transitions. [2024-11-09 06:06:37,695 INFO L78 Accepts]: Start accepts. Automaton has 2840 states and 4118 transitions. Word has length 111 [2024-11-09 06:06:37,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:06:37,697 INFO L471 AbstractCegarLoop]: Abstraction has 2840 states and 4118 transitions. [2024-11-09 06:06:37,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 06:06:37,697 INFO L276 IsEmpty]: Start isEmpty. Operand 2840 states and 4118 transitions. [2024-11-09 06:06:37,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-09 06:06:37,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:06:37,708 INFO L215 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:37,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:06:37,709 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 06:06:37,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:06:37,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1373653302, now seen corresponding path program 1 times [2024-11-09 06:06:37,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:06:37,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103770913] [2024-11-09 06:06:37,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:06:37,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:06:44,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:06:45,116 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2024-11-09 06:06:45,117 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:06:45,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103770913] [2024-11-09 06:06:45,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103770913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:06:45,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:06:45,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:06:45,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8646876] [2024-11-09 06:06:45,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:06:45,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:06:45,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:06:45,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:06:45,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:06:45,129 INFO L87 Difference]: Start difference. First operand 2840 states and 4118 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-09 06:06:47,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:06:49,374 WARN L539 Checker$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 06:06:56,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:06:59,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:07:01,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:07:03,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:07:05,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:07:05,829 INFO L93 Difference]: Finished difference Result 8354 states and 12112 transitions. [2024-11-09 06:07:05,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:07:05,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 115 [2024-11-09 06:07:05,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:07:05,885 INFO L225 Difference]: With dead ends: 8354 [2024-11-09 06:07:05,885 INFO L226 Difference]: Without dead ends: 5533 [2024-11-09 06:07:05,905 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 06:07:05,906 INFO L432 NwaCegarLoop]: 1862 mSDtfsCounter, 2041 mSDsluCounter, 1765 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 3 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2041 SdHoareTripleChecker+Valid, 3627 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:07:05,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2041 Valid, 3627 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 607 Invalid, 6 Unknown, 0 Unchecked, 20.3s Time] [2024-11-09 06:07:05,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5533 states. [2024-11-09 06:07:06,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5533 to 5503. [2024-11-09 06:07:06,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5503 states, 3264 states have (on average 1.2699142156862746) internal successors, (4145), 3368 states have internal predecessors, (4145), 1915 states have call successors, (1915), 324 states have call predecessors, (1915), 321 states have return successors, (1921), 1888 states have call predecessors, (1921), 1911 states have call successors, (1921) [2024-11-09 06:07:06,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5503 states to 5503 states and 7981 transitions. [2024-11-09 06:07:06,335 INFO L78 Accepts]: Start accepts. Automaton has 5503 states and 7981 transitions. Word has length 115 [2024-11-09 06:07:06,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:07:06,337 INFO L471 AbstractCegarLoop]: Abstraction has 5503 states and 7981 transitions. [2024-11-09 06:07:06,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-09 06:07:06,337 INFO L276 IsEmpty]: Start isEmpty. Operand 5503 states and 7981 transitions. [2024-11-09 06:07:06,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-09 06:07:06,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:07:06,344 INFO L215 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 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] [2024-11-09 06:07:06,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:07:06,345 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 06:07:06,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:07:06,346 INFO L85 PathProgramCache]: Analyzing trace with hash -545700888, now seen corresponding path program 1 times [2024-11-09 06:07:06,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:07:06,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269667992] [2024-11-09 06:07:06,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:07:06,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:07:11,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:07:12,507 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2024-11-09 06:07:12,508 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:07:12,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269667992] [2024-11-09 06:07:12,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269667992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:07:12,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:07:12,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:07:12,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187340884] [2024-11-09 06:07:12,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:07:12,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:07:12,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:07:12,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:07:12,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:07:12,512 INFO L87 Difference]: Start difference. First operand 5503 states and 7981 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-09 06:07:14,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:07:16,749 WARN L539 Checker$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 06:07:24,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:07:26,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:07:28,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:07:29,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:07:29,922 INFO L93 Difference]: Finished difference Result 11771 states and 17017 transitions. [2024-11-09 06:07:29,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:07:29,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 133 [2024-11-09 06:07:29,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:07:29,976 INFO L225 Difference]: With dead ends: 11771 [2024-11-09 06:07:29,977 INFO L226 Difference]: Without dead ends: 6287 [2024-11-09 06:07:30,004 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 06:07:30,006 INFO L432 NwaCegarLoop]: 1894 mSDtfsCounter, 1300 mSDsluCounter, 1776 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 16 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1300 SdHoareTripleChecker+Valid, 3670 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:07:30,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1300 Valid, 3670 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 663 Invalid, 5 Unknown, 0 Unchecked, 17.1s Time] [2024-11-09 06:07:30,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6287 states. [2024-11-09 06:07:30,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6287 to 6259. [2024-11-09 06:07:30,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6259 states, 3751 states have (on average 1.2679285523860304) internal successors, (4756), 3865 states have internal predecessors, (4756), 2105 states have call successors, (2105), 404 states have call predecessors, (2105), 400 states have return successors, (2106), 2076 states have call predecessors, (2106), 2101 states have call successors, (2106) [2024-11-09 06:07:30,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6259 states to 6259 states and 8967 transitions. [2024-11-09 06:07:30,446 INFO L78 Accepts]: Start accepts. Automaton has 6259 states and 8967 transitions. Word has length 133 [2024-11-09 06:07:30,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:07:30,448 INFO L471 AbstractCegarLoop]: Abstraction has 6259 states and 8967 transitions. [2024-11-09 06:07:30,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-09 06:07:30,448 INFO L276 IsEmpty]: Start isEmpty. Operand 6259 states and 8967 transitions. [2024-11-09 06:07:30,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-09 06:07:30,451 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:07:30,452 INFO L215 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 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] [2024-11-09 06:07:30,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:07:30,452 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 06:07:30,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:07:30,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1627095842, now seen corresponding path program 1 times [2024-11-09 06:07:30,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:07:30,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24413274] [2024-11-09 06:07:30,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:07:30,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:07:35,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:07:36,470 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2024-11-09 06:07:36,470 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:07:36,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24413274] [2024-11-09 06:07:36,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24413274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:07:36,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:07:36,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:07:36,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148869267] [2024-11-09 06:07:36,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:07:36,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:07:36,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:07:36,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:07:36,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:07:36,473 INFO L87 Difference]: Start difference. First operand 6259 states and 8967 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-09 06:07:38,527 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 06:07:40,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:07:46,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:07:48,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:07:50,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:07:52,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:07:54,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:07:54,492 INFO L93 Difference]: Finished difference Result 15291 states and 21796 transitions. [2024-11-09 06:07:54,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:07:54,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 131 [2024-11-09 06:07:54,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:07:54,550 INFO L225 Difference]: With dead ends: 15291 [2024-11-09 06:07:54,551 INFO L226 Difference]: Without dead ends: 9051 [2024-11-09 06:07:54,578 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 06:07:54,580 INFO L432 NwaCegarLoop]: 2012 mSDtfsCounter, 1666 mSDsluCounter, 1758 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 6 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1666 SdHoareTripleChecker+Valid, 3770 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:07:54,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1666 Valid, 3770 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 623 Invalid, 5 Unknown, 0 Unchecked, 17.7s Time] [2024-11-09 06:07:54,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9051 states. [2024-11-09 06:07:55,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9051 to 9021. [2024-11-09 06:07:55,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9021 states, 5348 states have (on average 1.2615931189229619) internal successors, (6747), 5522 states have internal predecessors, (6747), 3017 states have call successors, (3017), 661 states have call predecessors, (3017), 653 states have return successors, (3036), 2956 states have call predecessors, (3036), 3013 states have call successors, (3036) [2024-11-09 06:07:55,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9021 states to 9021 states and 12800 transitions. [2024-11-09 06:07:55,286 INFO L78 Accepts]: Start accepts. Automaton has 9021 states and 12800 transitions. Word has length 131 [2024-11-09 06:07:55,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:07:55,288 INFO L471 AbstractCegarLoop]: Abstraction has 9021 states and 12800 transitions. [2024-11-09 06:07:55,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-09 06:07:55,289 INFO L276 IsEmpty]: Start isEmpty. Operand 9021 states and 12800 transitions. [2024-11-09 06:07:55,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-09 06:07:55,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:07:55,293 INFO L215 NwaCegarLoop]: trace histogram [11, 9, 9, 9, 9, 9, 9, 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] [2024-11-09 06:07:55,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:07:55,293 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:07:55,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:07:55,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1503892059, now seen corresponding path program 1 times [2024-11-09 06:07:55,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:07:55,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44058511] [2024-11-09 06:07:55,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:07:55,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:00,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:01,219 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2024-11-09 06:08:01,219 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:01,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44058511] [2024-11-09 06:08:01,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44058511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:01,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:01,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:08:01,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513859869] [2024-11-09 06:08:01,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:01,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:08:01,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:01,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:08:01,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:08:01,224 INFO L87 Difference]: Start difference. First operand 9021 states and 12800 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-09 06:08:03,285 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 06:08:05,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:08:11,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:08:14,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:08:16,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:08:19,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:19,406 INFO L93 Difference]: Finished difference Result 25353 states and 36064 transitions. [2024-11-09 06:08:19,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:08:19,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 133 [2024-11-09 06:08:19,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:19,505 INFO L225 Difference]: With dead ends: 25353 [2024-11-09 06:08:19,505 INFO L226 Difference]: Without dead ends: 16351 [2024-11-09 06:08:19,549 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 06:08:19,550 INFO L432 NwaCegarLoop]: 1886 mSDtfsCounter, 2075 mSDsluCounter, 1814 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 4 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2075 SdHoareTripleChecker+Valid, 3700 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:19,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2075 Valid, 3700 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 611 Invalid, 5 Unknown, 0 Unchecked, 17.6s Time] [2024-11-09 06:08:19,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16351 states. [2024-11-09 06:08:20,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16351 to 16309. [2024-11-09 06:08:20,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16309 states, 9664 states have (on average 1.2629346026490067) internal successors, (12205), 9999 states have internal predecessors, (12205), 5488 states have call successors, (5488), 1169 states have call predecessors, (5488), 1154 states have return successors, (5530), 5357 states have call predecessors, (5530), 5484 states have call successors, (5530) [2024-11-09 06:08:20,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16309 states to 16309 states and 23223 transitions. [2024-11-09 06:08:20,453 INFO L78 Accepts]: Start accepts. Automaton has 16309 states and 23223 transitions. Word has length 133 [2024-11-09 06:08:20,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:20,454 INFO L471 AbstractCegarLoop]: Abstraction has 16309 states and 23223 transitions. [2024-11-09 06:08:20,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-09 06:08:20,455 INFO L276 IsEmpty]: Start isEmpty. Operand 16309 states and 23223 transitions. [2024-11-09 06:08:20,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-09 06:08:20,457 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:20,457 INFO L215 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 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 06:08:20,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:08:20,458 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:08:20,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:20,458 INFO L85 PathProgramCache]: Analyzing trace with hash 865107548, now seen corresponding path program 1 times [2024-11-09 06:08:20,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:20,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006239387] [2024-11-09 06:08:20,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:20,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:25,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:25,804 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2024-11-09 06:08:25,805 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:25,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006239387] [2024-11-09 06:08:25,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006239387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:25,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:25,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:08:25,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755096050] [2024-11-09 06:08:25,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:25,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:08:25,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:25,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:08:25,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:08:25,813 INFO L87 Difference]: Start difference. First operand 16309 states and 23223 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-09 06:08:27,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:08:30,048 WARN L539 Checker$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 06:08:34,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:08:40,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:08:42,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:08:43,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:08:43,560 INFO L93 Difference]: Finished difference Result 43953 states and 62490 transitions. [2024-11-09 06:08:43,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:08:43,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 138 [2024-11-09 06:08:43,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:08:43,734 INFO L225 Difference]: With dead ends: 43953 [2024-11-09 06:08:43,734 INFO L226 Difference]: Without dead ends: 27663 [2024-11-09 06:08:43,813 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 06:08:43,815 INFO L432 NwaCegarLoop]: 1825 mSDtfsCounter, 1886 mSDsluCounter, 1772 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 7 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1886 SdHoareTripleChecker+Valid, 3597 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:08:43,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1886 Valid, 3597 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 635 Invalid, 5 Unknown, 0 Unchecked, 17.0s Time] [2024-11-09 06:08:43,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27663 states. [2024-11-09 06:08:45,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27663 to 27627. [2024-11-09 06:08:45,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27627 states, 16333 states have (on average 1.252372497397906) internal successors, (20455), 16923 states have internal predecessors, (20455), 9308 states have call successors, (9308), 2012 states have call predecessors, (9308), 1983 states have return successors, (9402), 9037 states have call predecessors, (9402), 9304 states have call successors, (9402) [2024-11-09 06:08:45,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27627 states to 27627 states and 39165 transitions. [2024-11-09 06:08:45,621 INFO L78 Accepts]: Start accepts. Automaton has 27627 states and 39165 transitions. Word has length 138 [2024-11-09 06:08:45,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:08:45,621 INFO L471 AbstractCegarLoop]: Abstraction has 27627 states and 39165 transitions. [2024-11-09 06:08:45,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-09 06:08:45,622 INFO L276 IsEmpty]: Start isEmpty. Operand 27627 states and 39165 transitions. [2024-11-09 06:08:45,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-09 06:08:45,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:08:45,625 INFO L215 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 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] [2024-11-09 06:08:45,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 06:08:45,625 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 06:08:45,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:08:45,626 INFO L85 PathProgramCache]: Analyzing trace with hash 687581512, now seen corresponding path program 1 times [2024-11-09 06:08:45,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:08:45,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286338318] [2024-11-09 06:08:45,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:08:45,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:08:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:08:52,132 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2024-11-09 06:08:52,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:08:52,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286338318] [2024-11-09 06:08:52,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286338318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:08:52,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:08:52,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:08:52,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770060011] [2024-11-09 06:08:52,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:08:52,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:08:52,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:08:52,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:08:52,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:08:52,136 INFO L87 Difference]: Start difference. First operand 27627 states and 39165 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 06:08:54,202 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 06:08:56,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:08:58,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:09:05,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:09:07,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:09:09,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:09:12,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:09:15,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:09:15,863 INFO L93 Difference]: Finished difference Result 27633 states and 39170 transitions. [2024-11-09 06:09:15,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:09:15,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 153 [2024-11-09 06:09:15,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:09:16,072 INFO L225 Difference]: With dead ends: 27633 [2024-11-09 06:09:16,072 INFO L226 Difference]: Without dead ends: 27631 [2024-11-09 06:09:16,100 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 06:09:16,101 INFO L432 NwaCegarLoop]: 1815 mSDtfsCounter, 2079 mSDsluCounter, 3616 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2080 SdHoareTripleChecker+Valid, 5431 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:09:16,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2080 Valid, 5431 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 919 Invalid, 6 Unknown, 0 Unchecked, 22.7s Time] [2024-11-09 06:09:16,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27631 states. [2024-11-09 06:09:17,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27631 to 27631. [2024-11-09 06:09:17,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27631 states, 16336 states have (on average 1.2523261508325172) internal successors, (20458), 16926 states have internal predecessors, (20458), 9308 states have call successors, (9308), 2013 states have call predecessors, (9308), 1984 states have return successors, (9402), 9037 states have call predecessors, (9402), 9304 states have call successors, (9402) [2024-11-09 06:09:17,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27631 states to 27631 states and 39168 transitions. [2024-11-09 06:09:17,903 INFO L78 Accepts]: Start accepts. Automaton has 27631 states and 39168 transitions. Word has length 153 [2024-11-09 06:09:17,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:09:17,904 INFO L471 AbstractCegarLoop]: Abstraction has 27631 states and 39168 transitions. [2024-11-09 06:09:17,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-09 06:09:17,905 INFO L276 IsEmpty]: Start isEmpty. Operand 27631 states and 39168 transitions. [2024-11-09 06:09:17,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-09 06:09:17,908 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:09:17,909 INFO L215 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 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] [2024-11-09 06:09:17,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 06:09:17,909 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 06:09:17,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:09:17,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1547232871, now seen corresponding path program 1 times [2024-11-09 06:09:17,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:09:17,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454196939] [2024-11-09 06:09:17,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:09:17,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:09:23,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:09:24,889 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2024-11-09 06:09:24,890 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:09:24,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454196939] [2024-11-09 06:09:24,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454196939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:09:24,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:09:24,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:09:24,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431459782] [2024-11-09 06:09:24,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:09:24,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:09:24,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:09:24,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:09:24,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:09:24,893 INFO L87 Difference]: Start difference. First operand 27631 states and 39168 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 06:09:26,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:09:29,128 WARN L539 Checker$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 06:09:31,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:09:38,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:09:40,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:09:42,997 WARN L539 Checker$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 06:09:46,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:09:49,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:09:49,720 INFO L93 Difference]: Finished difference Result 27637 states and 39173 transitions. [2024-11-09 06:09:49,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:09:49,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 161 [2024-11-09 06:09:49,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:09:49,858 INFO L225 Difference]: With dead ends: 27637 [2024-11-09 06:09:49,859 INFO L226 Difference]: Without dead ends: 27635 [2024-11-09 06:09:49,873 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 06:09:49,873 INFO L432 NwaCegarLoop]: 1818 mSDtfsCounter, 2074 mSDsluCounter, 3617 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2075 SdHoareTripleChecker+Valid, 5435 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:09:49,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2075 Valid, 5435 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 919 Invalid, 7 Unknown, 0 Unchecked, 23.7s Time] [2024-11-09 06:09:49,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27635 states. [2024-11-09 06:09:51,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27635 to 27635. [2024-11-09 06:09:51,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27635 states, 16339 states have (on average 1.2522798212864925) internal successors, (20461), 16929 states have internal predecessors, (20461), 9308 states have call successors, (9308), 2014 states have call predecessors, (9308), 1985 states have return successors, (9402), 9037 states have call predecessors, (9402), 9304 states have call successors, (9402) [2024-11-09 06:09:51,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27635 states to 27635 states and 39171 transitions. [2024-11-09 06:09:51,546 INFO L78 Accepts]: Start accepts. Automaton has 27635 states and 39171 transitions. Word has length 161 [2024-11-09 06:09:51,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:09:51,547 INFO L471 AbstractCegarLoop]: Abstraction has 27635 states and 39171 transitions. [2024-11-09 06:09:51,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 06:09:51,547 INFO L276 IsEmpty]: Start isEmpty. Operand 27635 states and 39171 transitions. [2024-11-09 06:09:51,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-09 06:09:51,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:09:51,550 INFO L215 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:09:51,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 06:09:51,551 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 06:09:51,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:09:51,551 INFO L85 PathProgramCache]: Analyzing trace with hash -590500376, now seen corresponding path program 1 times [2024-11-09 06:09:51,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:09:51,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437406336] [2024-11-09 06:09:51,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:09:51,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:09:56,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:09:57,466 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2024-11-09 06:09:57,466 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:09:57,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437406336] [2024-11-09 06:09:57,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437406336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:09:57,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:09:57,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:09:57,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583522127] [2024-11-09 06:09:57,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:09:57,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:09:57,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:09:57,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:09:57,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:09:57,470 INFO L87 Difference]: Start difference. First operand 27635 states and 39171 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 06:09:59,525 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 06:10:01,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:10:03,865 WARN L539 Checker$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 06:10:10,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:10:12,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:10:14,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:10:19,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:10:19,411 INFO L93 Difference]: Finished difference Result 27641 states and 39176 transitions. [2024-11-09 06:10:19,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:10:19,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 163 [2024-11-09 06:10:19,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:10:19,548 INFO L225 Difference]: With dead ends: 27641 [2024-11-09 06:10:19,548 INFO L226 Difference]: Without dead ends: 27639 [2024-11-09 06:10:19,570 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 06:10:19,573 INFO L432 NwaCegarLoop]: 1818 mSDtfsCounter, 2074 mSDsluCounter, 3617 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2075 SdHoareTripleChecker+Valid, 5435 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:10:19,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2075 Valid, 5435 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 920 Invalid, 6 Unknown, 0 Unchecked, 20.9s Time] [2024-11-09 06:10:19,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27639 states. [2024-11-09 06:10:20,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27639 to 27639. [2024-11-09 06:10:20,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27639 states, 16342 states have (on average 1.252233508750459) internal successors, (20464), 16932 states have internal predecessors, (20464), 9308 states have call successors, (9308), 2015 states have call predecessors, (9308), 1986 states have return successors, (9402), 9037 states have call predecessors, (9402), 9304 states have call successors, (9402) [2024-11-09 06:10:21,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27639 states to 27639 states and 39174 transitions. [2024-11-09 06:10:21,071 INFO L78 Accepts]: Start accepts. Automaton has 27639 states and 39174 transitions. Word has length 163 [2024-11-09 06:10:21,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:10:21,072 INFO L471 AbstractCegarLoop]: Abstraction has 27639 states and 39174 transitions. [2024-11-09 06:10:21,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 06:10:21,072 INFO L276 IsEmpty]: Start isEmpty. Operand 27639 states and 39174 transitions. [2024-11-09 06:10:21,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-09 06:10:21,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:10:21,075 INFO L215 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1] [2024-11-09 06:10:21,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 06:10:21,076 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 06:10:21,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:10:21,076 INFO L85 PathProgramCache]: Analyzing trace with hash -135753629, now seen corresponding path program 1 times [2024-11-09 06:10:21,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:10:21,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466434497] [2024-11-09 06:10:21,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:10:21,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:10:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:10:27,073 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 411 trivial. 0 not checked. [2024-11-09 06:10:27,073 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:10:27,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466434497] [2024-11-09 06:10:27,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466434497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:10:27,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:10:27,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:10:27,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705781970] [2024-11-09 06:10:27,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:10:27,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:10:27,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:10:27,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:10:27,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:10:27,076 INFO L87 Difference]: Start difference. First operand 27639 states and 39174 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 06:10:29,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:10:31,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:10:33,450 WARN L539 Checker$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 06:10:40,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:10:42,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:10:44,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:10:49,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:10:49,093 INFO L93 Difference]: Finished difference Result 27645 states and 39179 transitions. [2024-11-09 06:10:49,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:10:49,093 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 168 [2024-11-09 06:10:49,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:10:49,248 INFO L225 Difference]: With dead ends: 27645 [2024-11-09 06:10:49,248 INFO L226 Difference]: Without dead ends: 27643 [2024-11-09 06:10:49,267 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 06:10:49,268 INFO L432 NwaCegarLoop]: 1818 mSDtfsCounter, 2073 mSDsluCounter, 3617 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2074 SdHoareTripleChecker+Valid, 5435 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:10:49,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2074 Valid, 5435 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 920 Invalid, 6 Unknown, 0 Unchecked, 20.8s Time] [2024-11-09 06:10:49,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27643 states. [2024-11-09 06:10:50,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27643 to 27643. [2024-11-09 06:10:50,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27643 states, 16345 states have (on average 1.2521872132150504) internal successors, (20467), 16935 states have internal predecessors, (20467), 9308 states have call successors, (9308), 2016 states have call predecessors, (9308), 1987 states have return successors, (9402), 9037 states have call predecessors, (9402), 9304 states have call successors, (9402) [2024-11-09 06:10:50,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27643 states to 27643 states and 39177 transitions. [2024-11-09 06:10:50,850 INFO L78 Accepts]: Start accepts. Automaton has 27643 states and 39177 transitions. Word has length 168 [2024-11-09 06:10:50,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:10:50,851 INFO L471 AbstractCegarLoop]: Abstraction has 27643 states and 39177 transitions. [2024-11-09 06:10:50,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 06:10:50,851 INFO L276 IsEmpty]: Start isEmpty. Operand 27643 states and 39177 transitions. [2024-11-09 06:10:50,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-09 06:10:50,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:10:50,855 INFO L215 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 5, 4, 4, 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] [2024-11-09 06:10:50,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 06:10:50,855 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 06:10:50,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:10:50,856 INFO L85 PathProgramCache]: Analyzing trace with hash 910957192, now seen corresponding path program 1 times [2024-11-09 06:10:50,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:10:50,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904298878] [2024-11-09 06:10:50,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:10:50,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:10:56,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:10:56,995 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2024-11-09 06:10:56,996 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:10:56,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904298878] [2024-11-09 06:10:56,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904298878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:10:56,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:10:56,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:10:56,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102347251] [2024-11-09 06:10:56,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:10:56,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:10:56,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:10:56,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:10:56,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:10:56,998 INFO L87 Difference]: Start difference. First operand 27643 states and 39177 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-09 06:10:59,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:11:01,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:11:03,398 WARN L539 Checker$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 06:11:10,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:11:12,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:11:14,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:11:17,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:11:20,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:11:20,644 INFO L93 Difference]: Finished difference Result 27649 states and 39182 transitions. [2024-11-09 06:11:20,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:11:20,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 173 [2024-11-09 06:11:20,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:11:20,775 INFO L225 Difference]: With dead ends: 27649 [2024-11-09 06:11:20,775 INFO L226 Difference]: Without dead ends: 27647 [2024-11-09 06:11:20,796 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 06:11:20,797 INFO L432 NwaCegarLoop]: 1818 mSDtfsCounter, 2072 mSDsluCounter, 3617 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2073 SdHoareTripleChecker+Valid, 5435 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:11:20,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2073 Valid, 5435 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 920 Invalid, 6 Unknown, 0 Unchecked, 22.2s Time] [2024-11-09 06:11:20,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27647 states. [2024-11-09 06:11:22,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27647 to 27647. [2024-11-09 06:11:22,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27647 states, 16348 states have (on average 1.2521409346709078) internal successors, (20470), 16938 states have internal predecessors, (20470), 9308 states have call successors, (9308), 2017 states have call predecessors, (9308), 1988 states have return successors, (9402), 9037 states have call predecessors, (9402), 9304 states have call successors, (9402) [2024-11-09 06:11:22,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27647 states to 27647 states and 39180 transitions. [2024-11-09 06:11:22,433 INFO L78 Accepts]: Start accepts. Automaton has 27647 states and 39180 transitions. Word has length 173 [2024-11-09 06:11:22,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:11:22,434 INFO L471 AbstractCegarLoop]: Abstraction has 27647 states and 39180 transitions. [2024-11-09 06:11:22,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-09 06:11:22,434 INFO L276 IsEmpty]: Start isEmpty. Operand 27647 states and 39180 transitions. [2024-11-09 06:11:22,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-09 06:11:22,437 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:11:22,438 INFO L215 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 6, 5, 5, 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] [2024-11-09 06:11:22,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 06:11:22,438 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 06:11:22,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:11:22,439 INFO L85 PathProgramCache]: Analyzing trace with hash 969881411, now seen corresponding path program 1 times [2024-11-09 06:11:22,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:11:22,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882819190] [2024-11-09 06:11:22,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:11:22,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:11:27,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:11:28,442 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2024-11-09 06:11:28,443 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:11:28,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882819190] [2024-11-09 06:11:28,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882819190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:11:28,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:11:28,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:11:28,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888368725] [2024-11-09 06:11:28,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:11:28,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:11:28,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:11:28,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:11:28,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:11:28,445 INFO L87 Difference]: Start difference. First operand 27647 states and 39180 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 06:11:30,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:11:32,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:11:34,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:11:42,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:11:44,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:11:46,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:11:49,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:11:51,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:11:51,951 INFO L93 Difference]: Finished difference Result 27653 states and 39185 transitions. [2024-11-09 06:11:51,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:11:51,951 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 178 [2024-11-09 06:11:51,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:11:52,048 INFO L225 Difference]: With dead ends: 27653 [2024-11-09 06:11:52,048 INFO L226 Difference]: Without dead ends: 27651 [2024-11-09 06:11:52,062 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 06:11:52,062 INFO L432 NwaCegarLoop]: 1818 mSDtfsCounter, 2071 mSDsluCounter, 3617 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2072 SdHoareTripleChecker+Valid, 5435 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:11:52,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2072 Valid, 5435 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 920 Invalid, 6 Unknown, 0 Unchecked, 22.0s Time] [2024-11-09 06:11:52,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27651 states. [2024-11-09 06:11:53,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27651 to 27651. [2024-11-09 06:11:53,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27651 states, 16351 states have (on average 1.2520946731086784) internal successors, (20473), 16941 states have internal predecessors, (20473), 9308 states have call successors, (9308), 2018 states have call predecessors, (9308), 1989 states have return successors, (9402), 9037 states have call predecessors, (9402), 9304 states have call successors, (9402) [2024-11-09 06:11:54,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27651 states to 27651 states and 39183 transitions. [2024-11-09 06:11:54,021 INFO L78 Accepts]: Start accepts. Automaton has 27651 states and 39183 transitions. Word has length 178 [2024-11-09 06:11:54,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:11:54,022 INFO L471 AbstractCegarLoop]: Abstraction has 27651 states and 39183 transitions. [2024-11-09 06:11:54,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 06:11:54,022 INFO L276 IsEmpty]: Start isEmpty. Operand 27651 states and 39183 transitions. [2024-11-09 06:11:54,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-09 06:11:54,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:11:54,025 INFO L215 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 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, 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 06:11:54,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 06:11:54,026 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 06:11:54,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:11:54,026 INFO L85 PathProgramCache]: Analyzing trace with hash 497534341, now seen corresponding path program 1 times [2024-11-09 06:11:54,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:11:54,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557239108] [2024-11-09 06:11:54,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:11:54,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:11:59,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:12:00,382 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-09 06:12:00,382 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:12:00,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557239108] [2024-11-09 06:12:00,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557239108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:12:00,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:12:00,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:12:00,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499951502] [2024-11-09 06:12:00,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:12:00,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:12:00,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:12:00,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:12:00,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:12:00,386 INFO L87 Difference]: Start difference. First operand 27651 states and 39183 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-09 06:12:02,443 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 06:12:04,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:12:11,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:12:13,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:12:17,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:12:22,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:12:22,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:12:22,751 INFO L93 Difference]: Finished difference Result 64429 states and 91239 transitions. [2024-11-09 06:12:22,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:12:22,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 180 [2024-11-09 06:12:22,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:12:22,889 INFO L225 Difference]: With dead ends: 64429 [2024-11-09 06:12:22,889 INFO L226 Difference]: Without dead ends: 36843 [2024-11-09 06:12:22,979 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 06:12:22,979 INFO L432 NwaCegarLoop]: 2746 mSDtfsCounter, 1306 mSDsluCounter, 1772 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 15 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1306 SdHoareTripleChecker+Valid, 4518 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:12:22,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1306 Valid, 4518 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 831 Invalid, 6 Unknown, 0 Unchecked, 20.1s Time] [2024-11-09 06:12:23,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36843 states. [2024-11-09 06:12:25,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36843 to 36763. [2024-11-09 06:12:25,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36763 states, 21809 states have (on average 1.2500802421018846) internal successors, (27263), 22587 states have internal predecessors, (27263), 12228 states have call successors, (12228), 2768 states have call predecessors, (12228), 2723 states have return successors, (12322), 11857 states have call predecessors, (12322), 12224 states have call successors, (12322) [2024-11-09 06:12:25,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36763 states to 36763 states and 51813 transitions. [2024-11-09 06:12:26,001 INFO L78 Accepts]: Start accepts. Automaton has 36763 states and 51813 transitions. Word has length 180 [2024-11-09 06:12:26,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:12:26,001 INFO L471 AbstractCegarLoop]: Abstraction has 36763 states and 51813 transitions. [2024-11-09 06:12:26,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-09 06:12:26,002 INFO L276 IsEmpty]: Start isEmpty. Operand 36763 states and 51813 transitions. [2024-11-09 06:12:26,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-09 06:12:26,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:12:26,004 INFO L215 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1] [2024-11-09 06:12:26,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 06:12:26,004 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 06:12:26,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:12:26,005 INFO L85 PathProgramCache]: Analyzing trace with hash -149623000, now seen corresponding path program 1 times [2024-11-09 06:12:26,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:12:26,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013985298] [2024-11-09 06:12:26,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:12:26,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:12:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:12:32,260 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2024-11-09 06:12:32,260 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:12:32,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013985298] [2024-11-09 06:12:32,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013985298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:12:32,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:12:32,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:12:32,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941129889] [2024-11-09 06:12:32,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:12:32,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:12:32,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:12:32,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:12:32,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:12:32,264 INFO L87 Difference]: Start difference. First operand 36763 states and 51813 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 06:12:34,319 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 06:12:36,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:12:38,667 WARN L539 Checker$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 06:12:46,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:12:48,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:12:50,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:12:56,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:12:56,010 INFO L93 Difference]: Finished difference Result 36769 states and 51818 transitions. [2024-11-09 06:12:56,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:12:56,011 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 183 [2024-11-09 06:12:56,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:12:56,130 INFO L225 Difference]: With dead ends: 36769 [2024-11-09 06:12:56,130 INFO L226 Difference]: Without dead ends: 36767 [2024-11-09 06:12:56,141 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 06:12:56,142 INFO L432 NwaCegarLoop]: 1818 mSDtfsCounter, 2070 mSDsluCounter, 3617 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2071 SdHoareTripleChecker+Valid, 5435 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:12:56,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2071 Valid, 5435 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 920 Invalid, 6 Unknown, 0 Unchecked, 21.4s Time] [2024-11-09 06:12:56,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36767 states. [2024-11-09 06:12:58,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36767 to 36767. [2024-11-09 06:12:58,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36767 states, 21812 states have (on average 1.250045846323125) internal successors, (27266), 22590 states have internal predecessors, (27266), 12228 states have call successors, (12228), 2769 states have call predecessors, (12228), 2724 states have return successors, (12322), 11857 states have call predecessors, (12322), 12224 states have call successors, (12322) [2024-11-09 06:12:58,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36767 states to 36767 states and 51816 transitions. [2024-11-09 06:12:58,970 INFO L78 Accepts]: Start accepts. Automaton has 36767 states and 51816 transitions. Word has length 183 [2024-11-09 06:12:58,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:12:58,971 INFO L471 AbstractCegarLoop]: Abstraction has 36767 states and 51816 transitions. [2024-11-09 06:12:58,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 06:12:58,971 INFO L276 IsEmpty]: Start isEmpty. Operand 36767 states and 51816 transitions. [2024-11-09 06:12:58,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-09 06:12:58,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:12:58,974 INFO L215 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1] [2024-11-09 06:12:58,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 06:12:58,974 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 06:12:58,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:12:58,975 INFO L85 PathProgramCache]: Analyzing trace with hash 762715494, now seen corresponding path program 1 times [2024-11-09 06:12:58,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:12:58,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130177498] [2024-11-09 06:12:58,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:12:58,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:13:05,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:13:06,089 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2024-11-09 06:13:06,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:13:06,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130177498] [2024-11-09 06:13:06,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130177498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:13:06,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:13:06,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:13:06,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650848976] [2024-11-09 06:13:06,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:13:06,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:13:06,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:13:06,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:13:06,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:13:06,092 INFO L87 Difference]: Start difference. First operand 36767 states and 51816 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-09 06:13:08,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:13:10,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:13:12,525 WARN L539 Checker$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 06:13:20,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:13:22,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:13:24,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:13:29,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:13:29,816 INFO L93 Difference]: Finished difference Result 36773 states and 51821 transitions. [2024-11-09 06:13:29,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:13:29,816 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 192 [2024-11-09 06:13:29,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:13:29,923 INFO L225 Difference]: With dead ends: 36773 [2024-11-09 06:13:29,923 INFO L226 Difference]: Without dead ends: 36771 [2024-11-09 06:13:29,934 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 06:13:29,935 INFO L432 NwaCegarLoop]: 1818 mSDtfsCounter, 2068 mSDsluCounter, 3617 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2069 SdHoareTripleChecker+Valid, 5435 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:13:29,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2069 Valid, 5435 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 920 Invalid, 6 Unknown, 0 Unchecked, 21.1s Time] [2024-11-09 06:13:29,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36771 states. [2024-11-09 06:13:32,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36771 to 36771. [2024-11-09 06:13:32,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36771 states, 21815 states have (on average 1.250011460004584) internal successors, (27269), 22593 states have internal predecessors, (27269), 12228 states have call successors, (12228), 2770 states have call predecessors, (12228), 2725 states have return successors, (12322), 11857 states have call predecessors, (12322), 12224 states have call successors, (12322) [2024-11-09 06:13:32,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36771 states to 36771 states and 51819 transitions. [2024-11-09 06:13:32,487 INFO L78 Accepts]: Start accepts. Automaton has 36771 states and 51819 transitions. Word has length 192 [2024-11-09 06:13:32,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:13:32,487 INFO L471 AbstractCegarLoop]: Abstraction has 36771 states and 51819 transitions. [2024-11-09 06:13:32,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-09 06:13:32,488 INFO L276 IsEmpty]: Start isEmpty. Operand 36771 states and 51819 transitions. [2024-11-09 06:13:32,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-09 06:13:32,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:13:32,491 INFO L215 NwaCegarLoop]: trace histogram [15, 9, 9, 9, 9, 9, 9, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:13:32,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 06:13:32,491 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 06:13:32,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:13:32,492 INFO L85 PathProgramCache]: Analyzing trace with hash 504466498, now seen corresponding path program 1 times [2024-11-09 06:13:32,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:13:32,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17538389] [2024-11-09 06:13:32,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:13:32,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:13:39,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:13:40,601 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2024-11-09 06:13:40,601 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:13:40,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17538389] [2024-11-09 06:13:40,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17538389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:13:40,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:13:40,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:13:40,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135756690] [2024-11-09 06:13:40,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:13:40,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:13:40,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:13:40,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:13:40,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:13:40,603 INFO L87 Difference]: Start difference. First operand 36771 states and 51819 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 06:13:42,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:13:44,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:13:47,059 WARN L539 Checker$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 06:13:55,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:13:57,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:13:59,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:14:06,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:14:06,025 INFO L93 Difference]: Finished difference Result 38551 states and 53593 transitions. [2024-11-09 06:14:06,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:14:06,025 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 190 [2024-11-09 06:14:06,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:14:06,137 INFO L225 Difference]: With dead ends: 38551 [2024-11-09 06:14:06,138 INFO L226 Difference]: Without dead ends: 38549 [2024-11-09 06:14:06,150 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 06:14:06,151 INFO L432 NwaCegarLoop]: 1842 mSDtfsCounter, 2003 mSDsluCounter, 3771 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2004 SdHoareTripleChecker+Valid, 5613 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:14:06,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2004 Valid, 5613 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 973 Invalid, 6 Unknown, 0 Unchecked, 22.1s Time] [2024-11-09 06:14:06,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38549 states. [2024-11-09 06:14:09,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38549 to 38547. [2024-11-09 06:14:09,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38547 states, 22827 states have (on average 1.2426074385596004) internal successors, (28365), 23605 states have internal predecessors, (28365), 12548 states have call successors, (12548), 3214 states have call predecessors, (12548), 3169 states have return successors, (12642), 12177 states have call predecessors, (12642), 12544 states have call successors, (12642) [2024-11-09 06:14:09,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38547 states to 38547 states and 53555 transitions. [2024-11-09 06:14:09,206 INFO L78 Accepts]: Start accepts. Automaton has 38547 states and 53555 transitions. Word has length 190 [2024-11-09 06:14:09,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:14:09,206 INFO L471 AbstractCegarLoop]: Abstraction has 38547 states and 53555 transitions. [2024-11-09 06:14:09,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 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 06:14:09,207 INFO L276 IsEmpty]: Start isEmpty. Operand 38547 states and 53555 transitions. [2024-11-09 06:14:09,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-09 06:14:09,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:14:09,209 INFO L215 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 9, 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, 1] [2024-11-09 06:14:09,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 06:14:09,209 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 06:14:09,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:14:09,210 INFO L85 PathProgramCache]: Analyzing trace with hash -213505080, now seen corresponding path program 1 times [2024-11-09 06:14:09,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:14:09,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330715002] [2024-11-09 06:14:09,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:14:09,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:14:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:14:16,177 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2024-11-09 06:14:16,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:14:16,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330715002] [2024-11-09 06:14:16,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330715002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:14:16,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:14:16,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:14:16,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168409784] [2024-11-09 06:14:16,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:14:16,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:14:16,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:14:16,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:14:16,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:14:16,180 INFO L87 Difference]: Start difference. First operand 38547 states and 53555 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 06:14:18,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:14:20,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:14:22,593 WARN L539 Checker$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 06:14:30,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:14:32,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:14:34,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:14:41,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:14:41,081 INFO L93 Difference]: Finished difference Result 38553 states and 53560 transitions. [2024-11-09 06:14:41,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:14:41,082 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 193 [2024-11-09 06:14:41,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:14:41,215 INFO L225 Difference]: With dead ends: 38553 [2024-11-09 06:14:41,216 INFO L226 Difference]: Without dead ends: 38551 [2024-11-09 06:14:41,230 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 06:14:41,231 INFO L432 NwaCegarLoop]: 1818 mSDtfsCounter, 2068 mSDsluCounter, 3617 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2069 SdHoareTripleChecker+Valid, 5435 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:14:41,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2069 Valid, 5435 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 920 Invalid, 6 Unknown, 0 Unchecked, 21.9s Time] [2024-11-09 06:14:41,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38551 states. [2024-11-09 06:14:44,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38551 to 38551. [2024-11-09 06:14:44,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38551 states, 22830 states have (on average 1.24257555847569) internal successors, (28368), 23608 states have internal predecessors, (28368), 12548 states have call successors, (12548), 3215 states have call predecessors, (12548), 3170 states have return successors, (12642), 12177 states have call predecessors, (12642), 12544 states have call successors, (12642) [2024-11-09 06:14:44,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38551 states to 38551 states and 53558 transitions. [2024-11-09 06:14:44,692 INFO L78 Accepts]: Start accepts. Automaton has 38551 states and 53558 transitions. Word has length 193 [2024-11-09 06:14:44,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:14:44,692 INFO L471 AbstractCegarLoop]: Abstraction has 38551 states and 53558 transitions. [2024-11-09 06:14:44,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 06:14:44,692 INFO L276 IsEmpty]: Start isEmpty. Operand 38551 states and 53558 transitions. [2024-11-09 06:14:44,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-09 06:14:44,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:14:44,696 INFO L215 NwaCegarLoop]: trace histogram [13, 10, 9, 9, 9, 9, 9, 9, 9, 9, 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] [2024-11-09 06:14:44,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 06:14:44,696 INFO L396 AbstractCegarLoop]: === Iteration 18 === 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 06:14:44,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:14:44,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1658717050, now seen corresponding path program 1 times [2024-11-09 06:14:44,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:14:44,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380101940] [2024-11-09 06:14:44,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:14:44,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:14:51,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:14:52,124 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2024-11-09 06:14:52,124 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:14:52,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380101940] [2024-11-09 06:14:52,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380101940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:14:52,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:14:52,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:14:52,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283970524] [2024-11-09 06:14:52,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:14:52,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:14:52,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:14:52,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:14:52,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:14:52,127 INFO L87 Difference]: Start difference. First operand 38551 states and 53558 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 06:14:54,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:14:56,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:14:58,503 WARN L539 Checker$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 06:15:06,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:15:08,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:15:11,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:15:15,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:15:19,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:15:19,276 INFO L93 Difference]: Finished difference Result 38559 states and 53564 transitions. [2024-11-09 06:15:19,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:15:19,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 202 [2024-11-09 06:15:19,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:15:19,401 INFO L225 Difference]: With dead ends: 38559 [2024-11-09 06:15:19,402 INFO L226 Difference]: Without dead ends: 38557 [2024-11-09 06:15:19,417 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 06:15:19,417 INFO L432 NwaCegarLoop]: 1845 mSDtfsCounter, 2009 mSDsluCounter, 3761 mSDsCounter, 0 mSdLazyCounter, 984 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2010 SdHoareTripleChecker+Valid, 5606 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 984 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:15:19,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2010 Valid, 5606 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 984 Invalid, 7 Unknown, 0 Unchecked, 24.3s Time] [2024-11-09 06:15:19,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38557 states. [2024-11-09 06:15:22,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38557 to 38555. [2024-11-09 06:15:22,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38555 states, 22833 states have (on average 1.24254368676915) internal successors, (28371), 23611 states have internal predecessors, (28371), 12548 states have call successors, (12548), 3216 states have call predecessors, (12548), 3171 states have return successors, (12642), 12177 states have call predecessors, (12642), 12544 states have call successors, (12642) [2024-11-09 06:15:22,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38555 states to 38555 states and 53561 transitions. [2024-11-09 06:15:22,666 INFO L78 Accepts]: Start accepts. Automaton has 38555 states and 53561 transitions. Word has length 202 [2024-11-09 06:15:22,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:15:22,667 INFO L471 AbstractCegarLoop]: Abstraction has 38555 states and 53561 transitions. [2024-11-09 06:15:22,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 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 06:15:22,668 INFO L276 IsEmpty]: Start isEmpty. Operand 38555 states and 53561 transitions. [2024-11-09 06:15:22,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-09 06:15:22,673 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:15:22,673 INFO L215 NwaCegarLoop]: trace histogram [13, 11, 10, 10, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1] [2024-11-09 06:15:22,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 06:15:22,674 INFO L396 AbstractCegarLoop]: === Iteration 19 === 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 06:15:22,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:15:22,674 INFO L85 PathProgramCache]: Analyzing trace with hash -243412888, now seen corresponding path program 1 times [2024-11-09 06:15:22,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:15:22,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995138661] [2024-11-09 06:15:22,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:15:22,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:15:28,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:29,622 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 579 trivial. 0 not checked. [2024-11-09 06:15:29,623 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:15:29,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995138661] [2024-11-09 06:15:29,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995138661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:15:29,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:15:29,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:15:29,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500024497] [2024-11-09 06:15:29,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:15:29,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:15:29,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:15:29,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:15:29,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:15:29,625 INFO L87 Difference]: Start difference. First operand 38555 states and 53561 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-09 06:15:31,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:15:33,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:15:36,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:15:43,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:15:45,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:15:47,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:15:55,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:15:55,273 INFO L93 Difference]: Finished difference Result 38561 states and 53566 transitions. [2024-11-09 06:15:55,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:15:55,274 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 203 [2024-11-09 06:15:55,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:15:55,391 INFO L225 Difference]: With dead ends: 38561 [2024-11-09 06:15:55,391 INFO L226 Difference]: Without dead ends: 38559 [2024-11-09 06:15:55,403 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 06:15:55,403 INFO L432 NwaCegarLoop]: 1818 mSDtfsCounter, 2066 mSDsluCounter, 3617 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2067 SdHoareTripleChecker+Valid, 5435 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:15:55,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2067 Valid, 5435 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 920 Invalid, 6 Unknown, 0 Unchecked, 22.3s Time] [2024-11-09 06:15:55,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38559 states. [2024-11-09 06:15:58,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38559 to 38559. [2024-11-09 06:15:58,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38559 states, 22836 states have (on average 1.242511823436679) internal successors, (28374), 23614 states have internal predecessors, (28374), 12548 states have call successors, (12548), 3217 states have call predecessors, (12548), 3172 states have return successors, (12642), 12177 states have call predecessors, (12642), 12544 states have call successors, (12642) [2024-11-09 06:15:58,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38559 states to 38559 states and 53564 transitions. [2024-11-09 06:15:58,608 INFO L78 Accepts]: Start accepts. Automaton has 38559 states and 53564 transitions. Word has length 203 [2024-11-09 06:15:58,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:15:58,608 INFO L471 AbstractCegarLoop]: Abstraction has 38559 states and 53564 transitions. [2024-11-09 06:15:58,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-09 06:15:58,609 INFO L276 IsEmpty]: Start isEmpty. Operand 38559 states and 53564 transitions. [2024-11-09 06:15:58,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-09 06:15:58,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:15:58,612 INFO L215 NwaCegarLoop]: trace histogram [13, 12, 11, 11, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:15:58,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 06:15:58,612 INFO L396 AbstractCegarLoop]: === Iteration 20 === 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 06:15:58,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:15:58,613 INFO L85 PathProgramCache]: Analyzing trace with hash 827505635, now seen corresponding path program 1 times [2024-11-09 06:15:58,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:15:58,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582744689] [2024-11-09 06:15:58,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:15:58,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:16:04,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:16:05,166 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 619 trivial. 0 not checked. [2024-11-09 06:16:05,167 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:16:05,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582744689] [2024-11-09 06:16:05,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582744689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:16:05,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:16:05,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:16:05,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699681730] [2024-11-09 06:16:05,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:16:05,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:16:05,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:16:05,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:16:05,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:16:05,169 INFO L87 Difference]: Start difference. First operand 38559 states and 53564 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 06:16:07,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:16:09,384 WARN L539 Checker$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 06:16:11,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:16:19,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:16:21,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:16:23,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:16:30,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:16:30,550 INFO L93 Difference]: Finished difference Result 38565 states and 53569 transitions. [2024-11-09 06:16:30,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:16:30,550 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 208 [2024-11-09 06:16:30,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:16:30,659 INFO L225 Difference]: With dead ends: 38565 [2024-11-09 06:16:30,659 INFO L226 Difference]: Without dead ends: 38561 [2024-11-09 06:16:30,669 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 06:16:30,670 INFO L432 NwaCegarLoop]: 1818 mSDtfsCounter, 2065 mSDsluCounter, 3617 mSDsCounter, 0 mSdLazyCounter, 920 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2066 SdHoareTripleChecker+Valid, 5435 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 920 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:16:30,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2066 Valid, 5435 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 920 Invalid, 6 Unknown, 0 Unchecked, 21.9s Time] [2024-11-09 06:16:30,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38561 states. [2024-11-09 06:16:33,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38561 to 38561. [2024-11-09 06:16:33,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38561 states, 22838 states have (on average 1.2424467991943253) internal successors, (28375), 23615 states have internal predecessors, (28375), 12548 states have call successors, (12548), 3218 states have call predecessors, (12548), 3172 states have return successors, (12642), 12177 states have call predecessors, (12642), 12544 states have call successors, (12642) [2024-11-09 06:16:34,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38561 states to 38561 states and 53565 transitions. [2024-11-09 06:16:34,156 INFO L78 Accepts]: Start accepts. Automaton has 38561 states and 53565 transitions. Word has length 208 [2024-11-09 06:16:34,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:16:34,156 INFO L471 AbstractCegarLoop]: Abstraction has 38561 states and 53565 transitions. [2024-11-09 06:16:34,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 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 06:16:34,157 INFO L276 IsEmpty]: Start isEmpty. Operand 38561 states and 53565 transitions. [2024-11-09 06:16:34,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-09 06:16:34,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:16:34,159 INFO L215 NwaCegarLoop]: trace histogram [15, 9, 9, 9, 9, 9, 9, 6, 6, 4, 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, 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 06:16:34,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 06:16:34,160 INFO L396 AbstractCegarLoop]: === Iteration 21 === 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 06:16:34,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:16:34,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1599899557, now seen corresponding path program 1 times [2024-11-09 06:16:34,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:16:34,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422434089] [2024-11-09 06:16:34,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:16:34,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:16:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:16:40,501 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2024-11-09 06:16:40,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:16:40,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422434089] [2024-11-09 06:16:40,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422434089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:16:40,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:16:40,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:16:40,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680173326] [2024-11-09 06:16:40,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:16:40,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:16:40,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:16:40,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:16:40,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:16:40,504 INFO L87 Difference]: Start difference. First operand 38561 states and 53565 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-09 06:16:42,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:16:44,813 WARN L539 Checker$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 06:16:47,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:16:49,168 WARN L539 Checker$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 06:16:58,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:17:00,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:17:02,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:17:04,791 WARN L539 Checker$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 06:17:09,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 06:17:14,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:17:14,818 INFO L93 Difference]: Finished difference Result 38563 states and 53566 transitions. [2024-11-09 06:17:14,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:17:14,819 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 208 [2024-11-09 06:17:14,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:17:14,942 INFO L225 Difference]: With dead ends: 38563 [2024-11-09 06:17:14,942 INFO L226 Difference]: Without dead ends: 38561 [2024-11-09 06:17:14,953 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 06:17:14,953 INFO L432 NwaCegarLoop]: 1830 mSDtfsCounter, 109 mSDsluCounter, 5419 mSDsCounter, 0 mSdLazyCounter, 1221 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 7249 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1221 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:17:14,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 7249 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1221 Invalid, 9 Unknown, 0 Unchecked, 30.9s Time] [2024-11-09 06:17:14,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38561 states. [2024-11-09 06:17:18,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38561 to 38561. [2024-11-09 06:17:18,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38561 states, 22838 states have (on average 1.2408704790261844) internal successors, (28339), 23615 states have internal predecessors, (28339), 12548 states have call successors, (12548), 3218 states have call predecessors, (12548), 3172 states have return successors, (12642), 12177 states have call predecessors, (12642), 12544 states have call successors, (12642) [2024-11-09 06:17:18,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38561 states to 38561 states and 53529 transitions. [2024-11-09 06:17:18,455 INFO L78 Accepts]: Start accepts. Automaton has 38561 states and 53529 transitions. Word has length 208 [2024-11-09 06:17:18,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:17:18,456 INFO L471 AbstractCegarLoop]: Abstraction has 38561 states and 53529 transitions. [2024-11-09 06:17:18,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (27), 3 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-09 06:17:18,456 INFO L276 IsEmpty]: Start isEmpty. Operand 38561 states and 53529 transitions. [2024-11-09 06:17:18,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-09 06:17:18,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:17:18,459 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1] [2024-11-09 06:17:18,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 06:17:18,459 INFO L396 AbstractCegarLoop]: === Iteration 22 === 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 06:17:18,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:17:18,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1387604187, now seen corresponding path program 1 times [2024-11-09 06:17:18,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:17:18,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966869128] [2024-11-09 06:17:18,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:17:18,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:17:23,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:17:24,689 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 671 trivial. 0 not checked. [2024-11-09 06:17:24,689 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:17:24,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966869128] [2024-11-09 06:17:24,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966869128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:17:24,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:17:24,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:17:24,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338754839] [2024-11-09 06:17:24,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:17:24,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:17:24,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:17:24,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:17:24,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:17:24,692 INFO L87 Difference]: Start difference. First operand 38561 states and 53529 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-09 06:17:26,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:17:28,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:17:31,136 WARN L539 Checker$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 06:17:39,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:17:41,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:17:43,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:17:50,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:17:50,350 INFO L93 Difference]: Finished difference Result 39333 states and 54183 transitions. [2024-11-09 06:17:50,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:17:50,351 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 217 [2024-11-09 06:17:50,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:17:50,483 INFO L225 Difference]: With dead ends: 39333 [2024-11-09 06:17:50,484 INFO L226 Difference]: Without dead ends: 38897 [2024-11-09 06:17:50,500 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 06:17:50,501 INFO L432 NwaCegarLoop]: 1823 mSDtfsCounter, 2024 mSDsluCounter, 3671 mSDsCounter, 0 mSdLazyCounter, 950 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2024 SdHoareTripleChecker+Valid, 5494 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 950 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:17:50,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2024 Valid, 5494 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 950 Invalid, 6 Unknown, 0 Unchecked, 22.3s Time] [2024-11-09 06:17:50,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38897 states. [2024-11-09 06:17:54,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38897 to 38897. [2024-11-09 06:17:54,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38897 states, 23141 states have (on average 1.2314938853117843) internal successors, (28498), 23774 states have internal predecessors, (28498), 12368 states have call successors, (12368), 3398 states have call predecessors, (12368), 3386 states have return successors, (12466), 12174 states have call predecessors, (12466), 12368 states have call successors, (12466) [2024-11-09 06:17:54,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38897 states to 38897 states and 53332 transitions. [2024-11-09 06:17:54,342 INFO L78 Accepts]: Start accepts. Automaton has 38897 states and 53332 transitions. Word has length 217 [2024-11-09 06:17:54,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:17:54,342 INFO L471 AbstractCegarLoop]: Abstraction has 38897 states and 53332 transitions. [2024-11-09 06:17:54,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-09 06:17:54,343 INFO L276 IsEmpty]: Start isEmpty. Operand 38897 states and 53332 transitions. [2024-11-09 06:17:54,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-11-09 06:17:54,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:17:54,346 INFO L215 NwaCegarLoop]: trace histogram [15, 9, 9, 9, 9, 9, 9, 8, 8, 3, 3, 3, 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] [2024-11-09 06:17:54,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-09 06:17:54,346 INFO L396 AbstractCegarLoop]: === Iteration 23 === 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 06:17:54,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:17:54,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1767768884, now seen corresponding path program 1 times [2024-11-09 06:17:54,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:17:54,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208937794] [2024-11-09 06:17:54,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:17:54,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:18:00,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:18:00,585 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2024-11-09 06:18:00,585 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:18:00,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208937794] [2024-11-09 06:18:00,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208937794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:18:00,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:18:00,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:18:00,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486832733] [2024-11-09 06:18:00,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:18:00,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:18:00,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:18:00,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:18:00,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:18:00,588 INFO L87 Difference]: Start difference. First operand 38897 states and 53332 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-09 06:18:02,651 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 06:18:04,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:18:07,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:18:15,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:18:17,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:18:19,130 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 06:18:26,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:18:26,051 INFO L93 Difference]: Finished difference Result 78321 states and 107696 transitions. [2024-11-09 06:18:26,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:18:26,052 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 242 [2024-11-09 06:18:26,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:18:26,225 INFO L225 Difference]: With dead ends: 78321 [2024-11-09 06:18:26,225 INFO L226 Difference]: Without dead ends: 39489 [2024-11-09 06:18:26,353 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:18:26,353 INFO L432 NwaCegarLoop]: 1765 mSDtfsCounter, 44 mSDsluCounter, 3526 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 17 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 5291 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:18:26,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 5291 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 907 Invalid, 6 Unknown, 0 Unchecked, 21.9s Time] [2024-11-09 06:18:26,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39489 states. [2024-11-09 06:18:30,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39489 to 39489. [2024-11-09 06:18:30,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39489 states, 23589 states have (on average 1.22981050489635) internal successors, (29010), 24198 states have internal predecessors, (29010), 12528 states have call successors, (12528), 3382 states have call predecessors, (12528), 3370 states have return successors, (12626), 12334 states have call predecessors, (12626), 12528 states have call successors, (12626) [2024-11-09 06:18:30,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39489 states to 39489 states and 54164 transitions. [2024-11-09 06:18:30,254 INFO L78 Accepts]: Start accepts. Automaton has 39489 states and 54164 transitions. Word has length 242 [2024-11-09 06:18:30,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:18:30,254 INFO L471 AbstractCegarLoop]: Abstraction has 39489 states and 54164 transitions. [2024-11-09 06:18:30,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-09 06:18:30,255 INFO L276 IsEmpty]: Start isEmpty. Operand 39489 states and 54164 transitions. [2024-11-09 06:18:30,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-11-09 06:18:30,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:18:30,258 INFO L215 NwaCegarLoop]: trace histogram [15, 9, 9, 9, 9, 9, 9, 8, 8, 3, 3, 3, 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] [2024-11-09 06:18:30,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-09 06:18:30,258 INFO L396 AbstractCegarLoop]: === Iteration 24 === 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 06:18:30,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:18:30,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1943237874, now seen corresponding path program 1 times [2024-11-09 06:18:30,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:18:30,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339305521] [2024-11-09 06:18:30,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:18:30,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:18:35,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:18:36,638 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2024-11-09 06:18:36,639 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:18:36,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339305521] [2024-11-09 06:18:36,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339305521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:18:36,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:18:36,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:18:36,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612786705] [2024-11-09 06:18:36,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:18:36,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:18:36,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:18:36,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:18:36,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:18:36,641 INFO L87 Difference]: Start difference. First operand 39489 states and 54164 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-09 06:18:38,696 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 06:18:40,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:18:43,069 WARN L539 Checker$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 06:18:51,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:18:53,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:18:55,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:19:01,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:19:01,783 INFO L93 Difference]: Finished difference Result 39489 states and 54164 transitions. [2024-11-09 06:19:01,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:19:01,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 242 [2024-11-09 06:19:01,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:19:01,937 INFO L225 Difference]: With dead ends: 39489 [2024-11-09 06:19:01,937 INFO L226 Difference]: Without dead ends: 39487 [2024-11-09 06:19:01,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 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 06:19:01,956 INFO L432 NwaCegarLoop]: 1776 mSDtfsCounter, 1943 mSDsluCounter, 3589 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1944 SdHoareTripleChecker+Valid, 5365 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:19:01,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1944 Valid, 5365 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 933 Invalid, 6 Unknown, 0 Unchecked, 21.9s Time] [2024-11-09 06:19:01,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39487 states. [2024-11-09 06:19:05,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39487 to 39487. [2024-11-09 06:19:05,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39487 states, 23588 states have (on average 1.2281244700695269) internal successors, (28969), 24196 states have internal predecessors, (28969), 12528 states have call successors, (12528), 3382 states have call predecessors, (12528), 3370 states have return successors, (12626), 12334 states have call predecessors, (12626), 12528 states have call successors, (12626) [2024-11-09 06:19:05,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39487 states to 39487 states and 54123 transitions. [2024-11-09 06:19:05,767 INFO L78 Accepts]: Start accepts. Automaton has 39487 states and 54123 transitions. Word has length 242 [2024-11-09 06:19:05,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:19:05,768 INFO L471 AbstractCegarLoop]: Abstraction has 39487 states and 54123 transitions. [2024-11-09 06:19:05,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-09 06:19:05,768 INFO L276 IsEmpty]: Start isEmpty. Operand 39487 states and 54123 transitions. [2024-11-09 06:19:05,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-11-09 06:19:05,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:19:05,772 INFO L215 NwaCegarLoop]: trace histogram [15, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 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] [2024-11-09 06:19:05,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-09 06:19:05,772 INFO L396 AbstractCegarLoop]: === Iteration 25 === 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 06:19:05,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:19:05,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1852112608, now seen corresponding path program 1 times [2024-11-09 06:19:05,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:19:05,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707270401] [2024-11-09 06:19:05,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:19:05,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:19:11,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:19:12,505 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2024-11-09 06:19:12,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:19:12,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707270401] [2024-11-09 06:19:12,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707270401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:19:12,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:19:12,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:19:12,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583784615] [2024-11-09 06:19:12,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:19:12,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:19:12,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:19:12,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:19:12,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:19:12,508 INFO L87 Difference]: Start difference. First operand 39487 states and 54123 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-09 06:19:14,571 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 06:19:16,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:19:18,917 WARN L539 Checker$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 06:19:21,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:19:30,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:19:32,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:19:34,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:19:36,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:19:44,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:19:44,148 INFO L93 Difference]: Finished difference Result 39487 states and 54123 transitions. [2024-11-09 06:19:44,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:19:44,149 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 261 [2024-11-09 06:19:44,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:19:44,182 INFO L225 Difference]: With dead ends: 39487 [2024-11-09 06:19:44,182 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 06:19:44,254 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 06:19:44,255 INFO L432 NwaCegarLoop]: 1769 mSDtfsCounter, 52 mSDsluCounter, 5263 mSDsCounter, 0 mSdLazyCounter, 1221 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 7032 SdHoareTripleChecker+Invalid, 1229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1221 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:19:44,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 7032 Invalid, 1229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1221 Invalid, 8 Unknown, 0 Unchecked, 28.3s Time] [2024-11-09 06:19:44,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 06:19:44,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 06:19:44,256 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 06:19:44,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 06:19:44,285 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 261 [2024-11-09 06:19:44,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:19:44,285 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 06:19:44,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (37), 3 states have call predecessors, (37), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-09 06:19:44,285 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 06:19:44,285 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 06:19:44,288 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 06:19:44,289 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 06:19:44,289 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 06:19:44,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-09 06:19:44,292 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, 1, 1, 1, 1, 1, 1] [2024-11-09 06:19:44,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.